Trimble Outdoors GPS Receiver R7 R8 User Manual

®
Trimble R7/R8 GPS Receiver  
User Guide  
Version 2.10 (R7), 2.11 (R8)  
Revision A  
F
June 2004  
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or performance problems resulting from (i) the  
combination or utilization of the Product or  
Software with products, information, data,  
systems or devices not made, supplied or specified  
by Trimble; (ii) the operation of the Product or  
Software under any specification other than, or in  
addition to, Trimble's standard specifications for  
its products; (iii) the unauthorized modification or  
use of the Product or Software; (iv) damage  
caused by accident, lightning or other electrical  
discharge, fresh or salt water immersion or spray;  
or (v) normal wear and tear on consumable parts  
(e.g., batteries).  
FOR THE PRODUCT OR SOFTWARE LICENSE OR  
U.S.$25.00. TO THE MAXIMUM EXTENT  
PERMITTED BY APPLICABLE LAW, IN NO  
EVENT SHALL TRIMBLE OR ITS SUPPLIERS BE  
LIABLE FOR ANY INDIRECT, SPECIAL,  
INCIDENTAL, OR CONSEQUENTIAL DAMAGES  
WHATSOEVER UNDER ANY CIRCUMSTANCE  
OR LEGAL THEORY RELATING IN ANY WAY TO  
THE PRODUCTS, SOFTWARE, AND  
ACCOMPANYING DOCUMENTATION AND  
MATERIALS, (INCLUDING, WITHOUT  
LIMITATION, DAMAGES FOR LOSS OF  
BUSINESS PROFITS, BUSINESS INTERRUPTION,  
LOSS OF BUSINESS INFORMATION, OR ANY  
OTHER PECUNIARY LOSS), REGARDLESS OF  
WHETHER TRIMBLE HAS BEEN ADVISED OF  
THE POSSIBILITY OF ANY SUCH LOSS AND  
REGARDLESS OF THE COURSE OF DEALING  
WHICH DEVELOPS OR HAS DEVELOPED  
BETWEEN YOU AND TRIMBLE. BECAUSE SOME  
STATES AND JURISDICTIONS DO NOT ALLOW  
THE EXCLUSION OR LIMITATION OF LIABILITY  
FOR CONSEQUENTIAL OR INCIDENTAL  
DAMAGES, THE ABOVE LIMITATION MAY NOT  
APPLY TO YOU.  
THE WARRANTIES ABOVE STATE TRIMBLE'S  
ENTIRE LIABILITY, AND YOUR EXCLUSIVE  
REMEDIES, RELATING TO PERFORMANCE OF  
THE PRODUCTS AND SOFTWARE. EXCEPT AS  
OTHERWISE EXPRESSLY PROVIDED HEREIN,  
THE PRODUCTS, SOFTWARE, AND  
ACCOMPANYING DOCUMENTATION AND  
MATERIALS ARE PROVIDED AS-ISAND  
WITHOUT EXPRESS OR IMPLIED WARRANTY  
OF ANY KIND BY EITHER TRIMBLE  
NAVIGATION LIMITED OR ANYONE WHO HAS  
BEEN INVOLVED IN ITS CREATION,  
PRODUCTION, INSTALLATION, OR  
Regulations and Safety  
DISTRIBUTION, INCLUDING, BUT NOT LIMITED  
TO, THE IMPLIED WARRANTIES OF  
The Bluetooth module inside your receiver is a  
radio-modem transmitter and receiver.  
MERCHANTABILITY AND FITNESS FOR A  
PARTICULAR PURPOSE, TITLE, AND  
NONINFRINGEMENT. THE STATED EXPRESS  
Regulations regarding the use of the radio-  
modems vary greatly from country to country. In  
some countries, the unit can be used without  
obtaining an end-user license. Other countries  
require end-user licensing. Consult your local  
communications governing agency for licensing  
information.  
WARRANTIES ARE IN LIEU OF ALL  
OBLIGATIONS OR LIABILITIES ON THE PART  
OF TRIMBLE ARISING OUT OF, OR IN  
CONNECTION WITH, ANY PRODUCTS OR  
SOFTWARE. SOME STATES AND  
JURISDICTIONS DO NOT ALLOW LIMITATIONS  
ON DURATION OR THE EXCLUSION OF AN  
IMPLIED WARRANTY, SO THE ABOVE  
LIMITATION MAY NOT APPLY TO YOU.  
Before operating this receiver, determine if  
authorization or a license to operate the unit is  
required in your country. It is the responsibility of  
the end user to obtain an operator’s permit or  
license for this receiver radio-modem for the  
location or country of use.  
TRIMBLE NAVIGATION LIMITED IS NOT  
RESPONSIBLE FOR THE OPERATION OR  
FAILURE OF OPERATION OF GPS SATELLITES  
OR THE AVAILABILITY OF GPS SATELLITE  
SIGNALS.  
STATEMENT ACCORDING FCC PART 15.19  
Limitation of Liability  
TRIMBLES ENTIRE LIABILITY UNDER ANY  
PROVISION HEREIN SHALL BE LIMITED TO  
THE GREATER OF THE AMOUNT PAID BY YOU  
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This device complies with Part 15 of the FCC  
Rules. Operation is subject to the following two  
conditions: (1) this device may not cause harmful  
interference, and (2) this device must accept any  
interference received, including interference that  
may cause undesired operation.  
Type Approval  
Type approval, or acceptance, covers technical  
parameters of the equipment related to emissions  
that can cause interference. Type approval is  
granted to the manufacturer of the transmission  
equipment, independent from the operation or  
licensing of the units. Some countries have unique  
technical requirements for operation in particular  
radio-modem frequency bands. To comply with  
those requirements, Trimble may have modified  
your equipment to be granted Type approval.  
Unauthorized modification of the units voids the  
Type approval, the warranty, and the operational  
license of the equipment.  
STATEMENT ACCORDING FCC PART 15.21  
Modifications not expressly approved by Trimble  
could void the user's authority to operate the  
equipment.  
STATEMENT ACCORDING FCC PART 15.105  
This equipment has been tested and found to  
comply with the limits for a Class B digital  
device, pursuant to Part 15 of the FCC Rules.  
These limits are designed to provide reasonable  
protection against harmful interference in a  
residential installation. This equipment generates,  
uses and can radiate radio frequency energy and, if  
not installed and used in accordance with the  
instructions, may cause harmful interference to  
radio communications. However, there is no  
guarantee that interference will not occur in a  
particular installation. If this equipment does  
cause harmful interference to radio or television  
reception, which can be determined by turning the  
equipment off and on, the user is encouraged to  
try to correct the interference by one or more of  
the following measures:  
Safety  
EXPOSURE TO RADIO FREQUENCY  
RADIATION  
You must maintain a minimum separation distance  
of 20 cm (approximately 8 in.) between yourself  
and the radiating GSM antenna for this device to  
satisfy the RF Exposure requirements of the FCC.  
For mobile operation, the maximum gain of the  
GSM antenna must not exceed 0 dBi.  
– Reorient or relocate the receiving antenna.  
– Increase the separation between the equipment  
and receiver.  
– Connect the equipment into an outlet on a circuit  
different from that to which the receiver is  
connected.  
-- Consult the dealer or an experienced radio/TV  
technician for help.  
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1
Introduction . . . . . . . . . . . . . . . . . . . . . . . . 1  
Trimble R7 GPS Receiver  
2
3
Bottom panel . . . . . . . . . . . . . . . . . . . . . . . . . . . 17  
Setup Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18  
Environmental conditions . . . . . . . . . . . . . . . . . . . . 18  
Sources of electrical interference . . . . . . . . . . . . . . . . 18  
General guidelines . . . . . . . . . . . . . . . . . . . . . . . . 19  
Postprocessed Setup. . . . . . . . . . . . . . . . . . . . . . . . . . . 20  
Trimble R7/R8 GPS Receiver User Guide  
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Contents  
4
Firmware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50  
5
Configuration . . . . . . . . . . . . . . . . . . . . . . .53  
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54  
Configuring the Receiver in Real Time . . . . . . . . . . . . . . . . . 54  
Configuring the Receiver Using Application Files . . . . . . . . . . . 55  
Application Files . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55  
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Contents  
6
7
Configuring the internal 900 MHz radio setup. . . . . . . . . . 76  
8
9
Physical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . 80  
Positioning Specifications. . . . . . . . . . . . . . . . . . . . . . . . 81  
Technical Specifications . . . . . . . . . . . . . . . . . . . . . . . . 82  
Default Settings . . . . . . . . . . . . . . . . . . . . . . 83  
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84  
Default Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85  
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Contents  
Enabling and configuring event marker input . . . . . . . . . . 100  
Trimble R8 GPS Receiver  
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110  
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110  
Use and Care . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112  
COCOM Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112  
13 Setting up the Receiver . . . . . . . . . . . . . . . . . 113  
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114  
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Contents  
15 Configuration . . . . . . . . . . . . . . . . . . . . . . 133  
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134  
Configuring the Receiver in Real Time . . . . . . . . . . . . . . . . . 134  
Configuring the Receiver Using Application Files . . . . . . . . . . . 135  
Application Files . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135  
Special application files . . . . . . . . . . . . . . . . . . . . . 136  
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Contents  
Configuring the internal transceiver . . . . . . . . . . . . . . . 148  
Default behavior . . . . . . . . . . . . . . . . . . . . . . . . . 160  
Power up settings. . . . . . . . . . . . . . . . . . . . . . . . . 160  
19 Cables and Connectors . . . . . . . . . . . . . . . . . 161  
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 162  
Port 1 and 2 Connectors. . . . . . . . . . . . . . . . . . . . . . . . . 162  
Power/Serial Data Cables . . . . . . . . . . . . . . . . . . . . . . . . 164  
x
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A
Common Message Elements . . . . . . . . . . . . . . . . . . . . . . 172  
B
C
RTCM Output. . . . . . . . . . . . . . . . . . . . . . . 189  
RTCM Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 190  
Message Scheduling . . . . . . . . . . . . . . . . . . . . . . . . . . 191  
Troubleshooting . . . . . . . . . . . . . . . . . . . . . 193  
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . 199  
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Contents  
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C H A P T E R  
1
Introduction  
1
Welcome to the Trimble R7/R8 GPS Receiver User Guide. This  
manual describes how to install, set up, and use a Trimble® R7 or  
Trimble R8 GPS receiver.  
Even if you have used other Global Positioning System (GPS)  
products before, Trimble recommends that you spend some time  
reading this manual to learn about the special features of this product.  
If you are not familiar with GPS, visit our website for an interactive  
look at Trimble and GPS at:  
www.trimble.com  
Trimble assumes that you are familiar with the Microsoft®  
Windows® operating system and know how to use a mouse, select  
options from menus and dialogs, make selections from lists, and refer  
to online help.  
1.1  
Related Information  
An electronic copy of this manual is available in portable document  
format (PDF) on the Trimble R7, Trimble R8, 5700, and 5800 GPS  
Receiver CD. Use Adobe Reader to view the contents of this file.  
Trimble R7/R8 GPS Receiver User Guide  
1
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1
Introduction  
Other sources of related information are:  
Release notes – the release notes describe new features of the  
product, information not included in the manual, and any  
changes to the manual. They are provided as a PDF on the CD.  
Use Adobe Reader to view the contents of the release notes.  
Registration – register your receiver to automatically receive  
e-mail notifications of Trimble R7 receiver firmware upgrades  
and new functionality. To register, do one of the following:  
Run the Trimble R7, Trimble R8, 5700, and 5800 GPS  
Receiver CD.  
Register electronically via the internet by completing the  
form and submitting.  
Print the registration form that is on the CD, fill it in, and  
fax or mail it to the address shown.  
Contact your local Trimble Dealer for more information about  
the support agreement contracts for software and firmware, and  
an extended warranty program for hardware.  
Trimble training courses – consider a training course to help  
you use your GPS system to its fullest potential. For more  
information, visit the Trimble website at  
www.trimble.com/training.html  
1.2  
Warnings and Cautions  
Always follow the instructions that accompany a warning or a caution.  
WARNING – Alerts you to a situation that is likely to cause serious  
personal injury, irreparable damage to equipment, or unrecoverable data  
loss.  
C
C
Caution – Alerts you to a hazard or an unsafe practice that could cause  
injury or property damage.  
2
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Introduction  
1
1.3  
Technical Assistance  
If you have a problem and cannot find the information you need in the  
product documentation, contact your local Distributor. Alternatively,  
request technical support using the Trimble website at:  
www.trimble.com/support.html  
1.4  
Your Comments  
Your feedback about the supporting documentation helps us to  
improve it with each revision. E-mail your comments to  
Trimble R7/R8 GPS Receiver User Guide  
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1
Introduction  
4
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S E C T I O N  
I
I
TRIMBLE R7 GPS RECEIVER  
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C H A P T E R  
2
Overview  
2
In this chapter:  
Q Introduction  
Q Features  
Q Use and Care  
Q COCOM Limits  
Trimble R7/R8 GPS Receiver User Guide  
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2
Overview  
2.1  
Introduction  
This chapter introduces the Trimble R7 GPS receiver. This receiver is  
designed for GPS surveying applications. The receiver features  
one-touch logging for ease of use, and five LEDs that let you monitor  
the survey in progress and the available battery capacity.  
The Trimble R7 tracks GPS satellites on both the L1 and L2  
frequencies to provide precise position data for land survey  
applications. The receiver records GPS data on an internal  
CompactFlash card and makes all data available through serial or USB  
ports.  
You can use the Trimble R7 alone by logging data internally, or as part  
of the GPS Total Station® system, which logs GPS data from the  
receiver to a Trimble controller running the Trimble Survey  
Controller™ or Trimble Survey Pro™ software.  
2.2  
Features  
The receiver provides the following features:  
Trimble R-track technology, which allows the receiver to track  
the L2 Civil signal (L2C)  
Centimeter-accuracy real-time positioning with RTK/OTF data,  
and up to 10 Hz position updates  
Submeter-accuracy real-time positioning using pseudorange  
corrections  
Adaptive dual-frequency RTK engine  
WAAS/EGNOS capability (Wide Area Augmentation  
System/European Geo-Stationary Navigation System)  
Automatic OTF (on-the-fly) initialization while moving  
1PPS (One Pulse Per Second) output  
Dual event-marker input  
8
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Overview  
2
USB port for data transfer  
Type I CompactFlash card for data storage  
Internal charging of batteries (no external battery charger  
required)  
Three RS-232 serial ports for:  
NMEA output  
RTCM SC-104 input and output  
Trimble Format (CMR) input and output  
Two TNC ports for connecting to the GPS and radio antennas  
2.3  
The Trimble R7 is designed to withstand the rough treatment that  
typically occurs in the field. However, the receiver is a high-precision  
electronic instrument and should be treated with reasonable care.  
C
WARNING – Operating or storing the receiver outside the specified  
temperature range can damage it. For more information, see Physical  
specifications, page 80.  
High-power signals from a nearby radio or radar transmitter can  
overwhelm the receiver circuits. This does not harm the instrument,  
but it can prevent the receiver electronics from functioning correctly.  
Avoid using the receiver within 400 meters of powerful radar,  
television, or other transmitters. Low-power transmitters such as those  
used in cellphones and two-way radios normally do not interfere with  
receiver operations.  
For more information, contact your local Trimble distributor.  
Trimble R7/R8 GPS Receiver User Guide  
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2
Overview  
2.4  
COCOM Limits  
The U.S. Department of Commerce requires that all exportable GPS  
products contain performance limitations so that they cannot be used  
in a manner that could threaten the security of the United States. The  
following limitations are implemented on the Trimble R7 receiver.  
Immediate access to satellite measurements and navigation results is  
disabled when the receiver’s velocity is computed to be greater than  
1000 knots, or its altitude is computed to be above 18,000 meters. The  
receiver continuously resets until the COCOM situation is cleared.  
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C H A P T E R  
3
Setting up the Receiver  
3
In this chapter:  
Q Introduction  
Q Parts of the Receiver  
Q Setup Guidelines  
Q Postprocessed Setup  
Q Pole-mounted Setup  
Q Backpack Setup  
Q Other System Components  
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3
Setting up the Receiver  
3.1  
Introduction  
This chapter provides general setup information, connection  
information, and cabling diagrams for the most common uses of the  
Trimble R7 receiver.  
3.2  
Parts of the Receiver  
All operating controls, ports, and connectors on the receiver are  
located on its four main panels, as shown in Figure 3.1. This section  
provides a brief overview of the features of each of these panels.  
Top  
panel  
Front  
panel  
Rear  
panel  
Bottom  
panel  
Figure 3.1  
Panels on the Trimble R7 receiver  
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Setting up the Receiver  
3
32.1  
Front panel  
Figure 3.2 shows the front panel of the Trimble R7. This panel  
contains the five indicator LEDs, the two buttons, and the catch for the  
CompactFlash/USB door.  
Buttons  
t
2
3
Indicator LEDs  
CompactFlash/  
USB door catch  
Figure 3.2  
Front panel  
The two buttons control data logging, data management, power, and  
settings. For more information, see Button Functions, page 38.  
The indicator LEDs show the status of logging, power, satellite  
tracking, and radio reception. For more information, see LED  
Behavior, page 39.  
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Setting up the Receiver  
32.2  
Rear panel  
Figure 3.3 shows the rear panel of the Trimble R7. This panel contains  
a slot for attaching the receiver catch lock, and the catches for the two  
battery compartments on the bottom panel. The catch lock should  
already be attached to your receiver.  
Receiver  
catch lock  
Battery  
compartment  
catches  
Figure 3.3  
Rear panel  
To mount the receiver on a pole, you need to attach the receiver  
bracket to the pole and insert the catch lock into the bracket. For more  
information, see Pole-Mounted Setup, page 22.  
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Setting up the Receiver  
3
32.3  
Top panel  
Figure 3.4 shows the top panel of the Trimble R7. This panel contains  
the three power/serial data ports and (TNC) ports for GPS and radio  
antenna connections.  
Power/serial data ports  
1
2
3
GPS antenna  
Top panel  
Radio antenna  
TNC ports  
Figure 3.4  
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3
Setting up the Receiver  
Each port on the top panel is marked with an icon to indicate its main  
function.  
Table 3.1  
Icon  
Trimble R7 receiver ports  
Name  
Connections  
Port 1  
Port 2  
Port 3  
GPS  
Trimble controller, event marker, or computer  
Power in, computer, 1PPS, or event marker  
External radio, power in  
GPS antenna  
RADIO  
Radio communications antenna  
The power/serial data ports are all 7 pin 0-shell Lemo connectors.  
Both Port 2 and Port 3 can accept external power. For information on  
default port settings, see Default Settings, page 85. For information on  
connector pinouts, see Cables and Connectors, page 91.  
The TNC port connectors are color-coded for easy system setup.  
Connect the yellow GPS antenna cable to the yellow TNC port marked  
GPS, and connect the blue Range Pole antenna (RPA) cable to the blue  
TNC connector marked RADIO. For more information on connecting  
the Trimble R7 system, see the following sections in this chapter.  
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Setting up the Receiver  
3
32.4  
Bottom panel  
Figure 3.5 shows the bottom panel of the Trimble R7. This panel  
contains the USB port, the CompactFlash port, and the compartments  
for the two internal batteries.  
CompactFlash/  
USB door  
CompactFlash port  
Internal battery  
USB port  
Internal battery  
compartment  
Figure 3.5  
Bottom panel  
The CompactFlash/USB door conceals the CompactFlash port and  
USB port. To open the door, push the catch on the front panel down.  
WARNING – When no USB cable is connected, or when using the  
receiver in a harsh environment, keep this door closed to keep moisture,  
dust, and dirt out of the ports. The temperature rating of the receiver  
applies only when all doors on the receiver are closed.  
C
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3
Setting up the Receiver  
3.3  
Setup Guidelines  
Consider the following guidelines when setting up the Trimble R7.  
33.1  
Environmental conditions  
Although the Trimble R7 has a waterproof housing, reasonable care  
should be taken to keep the unit dry. Avoid exposure to extreme  
environmental conditions, including:  
Water  
Heat greater than 65° C (149° F)  
Cold less than –40° C (–40° F)  
Corrosive fluids and gases  
Avoiding these conditions improves the receiver performance and  
long-term reliability.  
33.2  
Sources of electrical interference  
Avoid the following sources of electrical and magnetic noise:  
Gasoline engines (spark plugs)  
Televisions and PC monitors  
Alternators and generators  
Electric motors  
Equipment with DC-to-AC converters  
Fluorescent lights  
Switching power supplies  
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Setting up the Receiver  
3
33.3  
General guidelines  
The following guidelines apply whenever you set up your receiver for  
operation:  
When plugging in a Lemo cable, make sure that the red dots on  
the receiver port and the cable connector line up. Never use  
force to plug cables in, as this may damage the connector pins.  
When disconnecting a Lemo cable, grasp the cable by the  
sliding collar or lanyard and pull the cable connector straight  
out of the port. Do not twist the connector or pull on the cable  
itself.  
To securely connect a TNC cable, align the cable connector  
with the receiver receptacle and thread the cable connector onto  
the receptacle until snug.  
Insert the internal batteries with the battery contacts facing the  
CompactFlash/USB door. The undersides of the batteries have a  
center groove for alignment when being inserted into the  
receiver.  
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3
Setting up the Receiver  
3.4  
Postprocessed Setup  
For a postprocessed survey, you only need:  
the Trimble R7 receiver  
a Zephyr™ or Zephyr Geodetic antenna  
a GPS antenna cable  
Other equipment, as described below, is optional.  
To set up the Trimble R7 for a postprocessed survey:  
1. Set up the tripod with the tribrach and antenna adapter over the  
survey mark.  
Instead of a tripod, you can use a range pole with a bipod.  
However, Trimble recommends that you use a tripod for greater  
stability.  
2. Mount the antenna on the tribrach adapter.  
3. Use the tripod clip to hang the receiver on the tripod.  
4. Connect the yellow GPS antenna cable to the Zephyr antenna.  
5. Connect the other end of the GPS antenna cable to the yellow  
TNC port on the receiver.  
6. If external power is required, connect a battery with a 0-shell  
Lemo connection to Port 2 or Port 3 on the receiver.  
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3
Figure 3.6 shows the Trimble R7 receiver postprocessed setup.  
Figure 3.6  
Postprocessed setup  
Note – Instead of hanging the receiver on the tripod, you can place the  
receiver in its base case. Run the antenna cable out of the portal in the  
side of the base case to the antenna so that the case can stay closed  
while the receiver is running.  
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3
Setting up the Receiver  
3.1  
Pole-Mounted Setup  
To mount the Trimble R7 on a pole, you need to do the following:  
1. Mount the eRTK™ Range Pole antenna (RPA).  
2. Mount the receiver.  
3. Mount the Trimble controller.  
This section provides detailed instructions on each of these three steps.  
Mounting the Range Pole antenna (RPA)  
To mount the RPA on the pole:  
1. Install the RPA bracket 7.5 cm (3") from the pole top by placing  
the two pieces together and securing with screws. If you are  
using a 1" diameter pole, place the bracket inserts inside the  
bracket before securing.  
Note – You can use a quarter-wave whip (“rubber duck”)  
antenna attached directly to the receiver instead of the RPA.  
2. Connect the yellow TNC-to-TNC GPS cable and run it through  
the RPA bracket clips where it is labeled on the bracket. Make  
sure that the right-angle connector is at the top.  
Note – The cable must be routed inside the RPA, through the  
bracket, or it will affect the RPA radio reception performance.  
3. Align the TNC connector on the RPA with the GPS antenna  
cable on the bracket, and while feeding the cable through the  
RPA, slide the RPA onto the bracket until it clicks.  
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Figure 2.7 shows the Trimble R7 receiver pole-mounted setup.  
GPS antenna  
cable  
RPA  
TNC port  
(aligned over  
antenna cable)  
RPA  
bracket  
Pole  
Figure 3.7  
RPA and bracket  
4. Mount the Zephyr antenna on the range pole.  
5. Connect the GPS antenna cable. Make sure that the GPS cable  
is not hanging over the top of the RPA.  
6. Connect the blue TNC-to-TNC radio cable to the RPA.  
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Setting up the Receiver  
Mounting the Trimble R7 receiver  
To mount the receiver on the pole:  
1. Attach the receiver bracket to the pole:  
a. Place the bracket against the pole, approximately 0.5 m  
from the ground.  
Note – If you are using a 1" diameter pole, flip the black  
insert around inside the bracket, as shown in Figure 3.8.  
11  
/4" pole  
Bracket insert  
Bracket  
1" pole  
Figure 3.8  
Receiver bracket insert  
b. Close the gates of the bracket around the pole.  
c. Seat the base of the clip lock in the opposite gate.  
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d. Lock the clip lock.  
If the clip lock is too tight to be locked, turn it one or two  
turns counterclockwise and try again. If it is too loose, turn  
it one or two turns clockwise and try to lock it again.  
2. Mount the receiver on the bracket:  
a. Pull the bracket side locks in towards the pole.  
b. Set the receiver catch lock in the bracket.  
c. Holding the receiver in the bracket, pull the side locks back  
to their original positions, as shown in Figure 3.9.  
Gates  
Clip lock  
Side locks  
Figure 3.9  
Trimble R7 receiver bracket  
3. Connect the blue TNC radio communications cable to the blue  
TNC port on the receiver. If necessary, adjust the position of the  
receiver to remove cable slack.  
4. Connect the yellow TNC GPS antenna cable to the yellow TNC  
port on the receiver. If necessary, adjust the position of the  
receiver to remove cable slack.  
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Setting up the Receiver  
Mounting the TSC1/TSCe controller  
To mount the TSC1™/TSCe™ controller on the pole:  
1. Mount the controller bracket on the pole:  
a. Place the bracket against the pole at a comfortable height.  
b. Rotate the clamping screw on the bracket pole until tight.  
c. Place the controller into the cradle assembly and tighten  
the clamping mechanism.  
d. Any cables running down the pole should be run through  
the machined groove on the inside of the controller  
bracket.  
e. Position the controller in the preferred position for  
operation by pressing the spring-loaded release button on  
the cradle, pulling the assembly outward, and rotating the  
cradle assembly to the desired angle. Reseat the cradle in  
the proper position by lining up the alignment pins and  
pushing inward until the release button locks.  
2. Connect one end of the 2 ft 0-shell to 0-shell Lemo cable to the  
TSC1/TSCe controller.  
3. Connect the other end of the Lemo cable to Port 1 on the  
receiver.  
4. Place the hand grip below the controller bracket (or above it,  
depending on the position of the bracket), with the cables  
running through the grip.  
5. Secure any loose cables, using the velcro cable ties.  
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Setting up the Receiver  
3
Figure 2.10 shows the pole-mounted setup.  
Zephyr antenna  
RPA  
Velcro tie  
TSC1 / TSCe bracket  
Hand grip  
Figure 3.10 Pole-mounted setup  
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Setting up the Receiver  
3.1  
Backpack Setup  
Both the whip and RPA antennae are suitable for use in a backpack.  
The RPA is installed in the same manner as for the pole-mounted setup  
(see Pole-Mounted Setup, page 22).  
Tip – The RPA is tuned for operation with the GPS antenna cable running  
through it. Operating it from a backpack may reduce its operating range.  
Trimble recommends that you use the whip antenna.  
B
To set up the Trimble R7 for use in a backpack:  
1. Insert the receiver into the backpack with the ports on the top  
panel facing upwards and the front panel facing outwards.  
Secure the receiver around the middle with the velcro strap.  
2. Attach the Zephyr™ antenna to a range pole.  
3. Attach the whip antenna mount to one of the fittings on the top  
of the backpack.  
4. The backpack has a feedthrough on both sides at the top and on  
both sides near the bottom to allow cables to be positioned out  
of the way of the main zipper. Run the radio communications  
cable through at the top, and connect it to the blue TNC port on  
the receiver.  
5. Connect the straight end of the yellow GPS cable to the yellow  
TNC port on the receiver.  
6. Run the right-angle connector on the yellow GPS cable through  
the top or side slot on the backpack, and connect it to the  
Zephyr antenna.  
7. Connect one end of the 6 ft 0-shell to 0-shell cable to Port 1 on  
the receiver.  
8. Run the 0-shell cable through the side slot of the backpack and  
connect it to the TSC1/TSCe controller.  
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Figure 3.11 shows the backpack setup.  
Whip antenna  
Zephyr antenna  
TSC1/TSCe bracket  
Figure 3.11 Backpack setup  
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3
Setting up the Receiver  
3.1  
Other System Components  
This section describes optional components that you can use with the  
Trimble R7 receiver.  
31.1  
Radios  
Radios are the most common data link for Real-Time Kinematic  
(RTK) surveying. The Trimble R7 receiver is available with an  
optional internal radio in either the 450 or 900 MHz UHF bands. You  
can also connect an external radio to Port 3, whether the internal radio  
is installed or not.  
The Trimble R7 supports the following Trimble base radios when  
using the internal receiver radio:  
TRIMMARK™ 3  
TRIMMARK IIe  
TRIMTALK™ 450S  
SiteNet™ 450  
SiteNet 900  
Trimble R8 internal transmitter (base)  
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3
Internal Radio Setup  
You can configure the Trimble R7 optional internal radio using any of  
the following:  
the GPS Configurator software  
the WinFlash software  
the Trimble Survey Controller software  
For more information, refer to the GPS Configurator Help, the  
WinFlash Help, or the Trimble Survey Controller User Guide.  
By default, the internal UHF radio has only a few frequencies  
installed. Use WinFlash to configure additional frequencies. For more  
information, see Adding frequencies for the 450 MHz internal radio,  
page 74.  
External Radio Setup  
To use an external radio with the Trimble R7 receiver, you need an  
external power source for the radio.  
To set up a Trimble R7 using an external radio:  
1. Connect one end of the yellow GPS antenna cable to the yellow  
TNC port on the receiver.  
2. Connect the other end of the GPS antenna cable to a Zephyr or  
Zephyr Geodetic antenna.  
3. Connect the external radio to Port 3 on the receiver.  
4. Connect a radio antenna to the external radio.  
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3
Setting up the Receiver  
Figure 3.12 shows a TRIMMARK 3 connected to a Trimble R7  
receiver.  
To antenna  
To power supply  
Figure 3.12 Connecting an external radio  
5. Connect an external power source to Port 2 on the receiver.  
Note – External rover radios must have their own power source  
because the internal Lithium-Ion batteries do not supply enough  
voltage. Alternatively, supply external power to port 2 of the  
receiver, and enable power out on port 3.  
Base radios must have their own power source because of their  
high power consumption.  
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Setting up the Receiver  
3
Alternatively, you can apply external power directly to the  
radio, if it supports it.  
You can use a 10 Ah battery, a 6 Ah battery, or camcorder  
batteries. The choice of power supply depends on the  
application, and whether you are using the radio as a reference  
or rover radio. For more information about the power  
capabilities of the Trimble R7, see Batteries and Power,  
page 45.  
6. Configure the external radio using Trimble Survey Controller.  
Alternatively, you can configure a TRIMMARK 3 radio using  
WinFlash or the configuration software supplied with the radio.  
For more information, refer to the Trimble Survey Controller  
User Guide or the appropriate Help.  
7. Set up any other equipment as required, depending on whether  
you are using the radio as a reference or a rover radio.  
30.1  
Cellular modems  
You can use a cellular modem instead of a radio as your data  
communications link. Cellular modems and other radio links can be  
used to extend the limits of your surveys.  
To connect a cellular modem to a Trimble R7 receiver, you need the  
following:  
A Trimble R7 receiver  
A custom-designed cellular modem, or a cellphone that can  
transmit and receive data  
Serial (cellphone to DB9) cable (supplied with the cellular  
modem or phone)  
Trimble DB9 to 0-shell Lemo cable  
Note – This cable is suitable only if flow control can be disabled  
on the cellular modem. If the cellular modem does not support  
this functionality, a special cable is required. For more  
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Setting up the Receiver  
information, refer to the document Using Cellular and CDPD  
Modems for RTK, which is available from your local Trimble  
Distributor.  
Figure 3.13 shows the components required to connect a cellphone to  
a Trimble R7 receiver.  
DB9 to Lemo cable  
Serial cable  
Figure 3.13 Connecting a cellphone  
For more information on using a cellular modem as a data link, refer to  
the Trimble Survey Controller User Guide.  
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30.2  
Antennas  
The Trimble R7 receiver should normally be used with a Zephyr or  
Zephyr Geodetic antenna. These antennas have been designed  
specifically for use with the Trimble R7.  
Use Figure 3.14 as a guide for measuring the height of the Zephyr and  
Zephyr Geodetic antennas. The Zephyr antenna is designed to be  
measured to the top of the notch. The Zephyr Geodetic (shown) has  
been designed to be measured to the bottom of the notch.  
Figure 3.14 Measuring antenna height  
Older models of antennas, such as the Choke Ring or  
Micro-Centered™ L1/L2 antennas, need more power to operate than  
the Zephyr models. To configure the receiver to output more power on  
the antenna port, select the correct antenna type in GPS Configurator,  
or through the Trimble controller. For information on how to do this,  
contact your local Trimble Service Provider.  
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Setting up the Receiver  
30.3  
CompactFlash cards  
The Trimble R7 logs data internally on a CompactFlash card.  
However, it only support the Type I CompactFlash card. Trimble  
recommends that you use an industrial-rated CompactFlash card, as  
commercial cards have a limited operating temperature range.  
Before logging data to a CompactFlash card, format the card to ensure  
the integrity of the file system. To format the card, insert it in the  
receiver and then hold down p for 30 seconds.  
Note – Make sure that you format your CompactFlash card in the  
receiver. This prevents data on the card from being corrupted if the  
card is removed while data is being logged. Formatting the card in  
your PC may cause data corruption, or loss of data.  
When inserting the card, make sure that it slides into the card slot  
properly.  
WARNING –  
C
– The Trimble R7 allows for a maximum of 512 files on the CompactFlash  
card, regardless of the card’s capacity. The file names must be in 8.3  
format, otherwise files copied to the CompactFlash card may cause data  
corruption or loss of data when logging.  
– If the card does not seat into the pins correctly, do not use force or you  
may damage the pins. Remove the card and reinsert it carefully.  
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C H A P T E R  
4
General Operation  
4
In this chapter:  
Q Introduction  
Q Button Functions  
Q LED Behavior  
Q Starting and Stopping the Receiver  
Q Logging Data  
Q Resetting to Defaults  
Q Formatting a CompactFlash Card  
Q Batteries and Power  
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4
General Operation  
4.1  
Introduction  
All the controls that you need for general operation of the Trimble R7  
receiver are located on the front panel, as shown in Figure 4.1.  
Power button  
Data button  
t
2
3
SV Tracking  
Battery LEDs  
Logging/  
Radio/Event  
Memory LED Marker LED  
Figure 4.1  
Controls on the front panel of the Trimble R7  
For more information about other panels of the Trimble R7, see Parts  
of the Receiver, page 12.  
4.2  
Button Functions  
The Trimble R7 has only two buttons: a Power button, represented in  
this manual by p, and a Data button, represented by d.  
Use p to switch the receiver on or off, and to perform data  
management functions such as deleting files or resetting the receiver.  
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Use d to start or stop logging. This button is only effective when the  
receiver is switched on and has completed any power-up and  
initialization tasks.  
Table 4.1 describes the main functions of the two buttons.  
Table 4.1  
Button functions  
Action  
Power button  
Press  
Data button  
Turn the receiver on  
Turn the receiver off  
Hold for 2 seconds  
Start logging data internally  
Stop logging data internally  
Delete the ephemeris file  
Reset the receiver to factory defaults  
Delete application files  
Format the CompactFlash card  
Press  
Hold for 2 seconds  
Hold for 15 seconds  
Hold for 15 seconds  
Hold for 30 seconds  
Hold for 30 seconds  
Note – The term “press” indicates that you should press the button  
and release it immediately. The term “hold” indicates that you should  
press the button and hold it down until the time indicated has elapsed.  
4.3  
LED Behavior  
The five LEDs on the top panel of the receiver indicate various  
operating conditions. Generally, a lit or slowly flashing LED indicates  
normal operation, an LED that is flashing quickly indicates a  
condition that may require attention, and an unlit LED indicates that  
no operation is occurring. The following table defines each possible  
LED state.  
The term …  
Flash  
means that the LED …  
is lit briefly every 3 seconds  
Slow flash  
alternates slowly between being lit and unlit  
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General Operation  
The term …  
means that the LED …  
Fast flash  
On  
alternates rapidly between being lit and unlit  
is lit  
Off  
is unlit  
43.1  
Logging/Memory LED  
The yellow Logging/Memory LED below the d button indicates the  
status of data logging and memory usage.  
Behavior  
On  
Meaning  
Data is being logged.  
Slow flash  
Enough FastStatic data has been logged. Alternatively, if  
the red SV Tracking LED is on solid at the same time, the  
receiver is in Monitor mode, and is checking for new  
firmware to install.  
Fast flash  
Flash  
Data is being logged but memory is low.  
The receiver is in Sleep mode, and will wake up five  
minutes before the scheduled start time of a timed  
application file.  
Off  
Data is not being logged, or the CompactFlash card is  
full.  
43.2  
SV Tracking LED  
The red SV Tracking LED below the SV icon  
indicates the status  
of satellite tracking.  
Behavior  
Slow flash  
Fast flash  
Off  
Meaning  
Tracking four or more satellites.  
Tracking three or fewer satellites.  
Not tracking any satellites.  
On  
The receiver is in Monitor mode, and is checking for new  
firmware to install.  
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43.3  
Radio LED  
The green Radio LED below the Radio icon  
of data input and output.  
indicates the status  
Behavior  
Meaning  
A data packet or event marker has been received.  
Slow flash  
43.4  
Battery 1 LED and Battery 2 LED  
The Battery LEDs inside the two Battery icons  
indicate the status  
of the two internal batteries, or the power sources connected on Ports 2  
and 3.  
By default, each battery LED indicates the status of the external power  
source on the corresponding port. If no external source is detected,  
each LED indicates the status of an internal battery. The color of the  
LED indicates whether the power source is currently in use (green) or  
is on standby (yellow).  
Color  
Meaning  
Behavior  
On  
Meaning  
Green  
Power source  
is in use  
Healthy  
Fast flash  
Off  
Low power  
No power source is present  
Healthy  
Yellow  
Power source  
is on standby  
On  
Fast flash  
Flash  
Off  
Low power  
Dead  
No power source is present  
4.4  
Starting and Stopping the Receiver  
To turn on the receiver, press p.  
To turn off the receiver, hold down p for two seconds.  
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4
General Operation  
4.5  
Logging Data  
You can log data to the CompactFlash card in the receiver, or to the  
survey device.  
45.1  
Logging internally  
The Trimble R7 receiver logs GPS data internally on a CompactFlash  
card. You can then use the Trimble Data Transfer utility to transfer  
logged data files to your office computer. The transferred files are in  
Trimble DAT (.dat) format.  
WARNING – The Trimble R7 allows for a maximum of 512 files on the  
CompactFlash card, regardless of the card’s capacity. The file names  
must be in 8.3 format, otherwise files copied to the CompactFlash card  
may cause data corruption or loss of data when logging.  
C
Data is logged using the current logging settings configured in the  
receiver. Data files logged internally are named automatically.  
To begin internal logging, press d. The Logging/Memory LED lights  
up.  
To stop logging, hold down d for at least two seconds. The  
Logging/Memory LED turns off.  
Note – When the CompactFlash card is full, the receiver stops logging  
data, and the Logging/Memory LED switches off. Existing data files  
are not overwritten.  
Approximate storage requirements for different logging rates are  
shown in Table 4.2. The values shown are for a one-hour logging  
session with six satellites visible.  
Table 4.2  
Storage requirements  
Logging rate  
10 Hz  
Memory required  
2,588 KB  
1 Hz  
335 KB  
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General Operation  
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Table 4.2  
Storage requirements (continued)  
Memory required  
Logging rate  
5 seconds  
87 KB  
37 KB  
15 seconds  
Note – If power is lost, or the CompactFlash card is removed while  
logging, the file system is designed so that a maximum of ten seconds  
of data will be lost, regardless of the logging rate. To ensure that this  
behavior occurs, use GPS Configurator to perform a quick format of  
the CompactFlash card before logging data to the card for the first  
time.  
45.2  
Logging to a Trimble controller  
When the Trimble R7 receiver is connected to a Trimble controller,  
you can log GPS data from the receiver to the controller, or to a PC  
card inserted in the controller. When you use a Trimble controller, you  
do not use the receiver’s controls. Instead, you use the controller  
functions to set logging options, specify filenames, and control when  
logging occurs.  
Data is stored in job files, which can be transferred to your office  
computer using Trimble’s Data Transfer utility.  
For more information on logging data from a receiver using a Trimble  
controller refer, to the user guide for your particular controller.  
4.6  
Resetting to Defaults  
To reset the receiver to its factory default settings, hold down p for at  
least 15 seconds.  
WARNING – Make sure that you do not hold down p for more than 30  
seconds. After 30 seconds, any application files stored in the receiver are  
deleted and the CompactFlash card is reformatted.  
C
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4
General Operation  
Resetting the receiver to its factory defaults also deletes any ephemeris  
file in the receiver.  
For more information, see Chapter 9, Default Settings.  
4.7  
Formatting a CompactFlash Card  
To format a CompactFlash card for use in a Trimble R7 receiver, insert  
the card in the CompactFlash port, then hold down p for at least 30  
seconds. After 15 seconds, the receiver is reset to its factory defaults,  
and any ephemeris file is deleted. After 30 seconds, any files stored on  
the card are deleted and the CompactFlash card is reformatted.  
WARNING – Formatting a CompactFlash card while it is in the receiver  
deletes all the data files on the card and all the application files in the  
receiver.  
C
Note – When you use p to format the CompactFlash card, a quick  
format is performed. A quick format reformats the card for use with  
the Trimble R7 receiver and deletes all data on the card. A full format  
checks the card for errors or bad sectors, and is only necessary if the  
card is corrupted. To perform a full format, use GPS Configurator. For  
more information, see GPS Configurator Software, page 70.  
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4.8  
Batteries and Power  
WARNING – Do not damage the rechargeable Lithium-ion battery. A  
damaged battery can cause an explosion or fire, and can result in  
personal injury and/or property damage.  
C
To prevent injury or damage:  
– Do not use or charge the battery if it appears to be damaged. Signs of  
damage include, but are not limited to, discoloration, warping, and leaking  
battery fluid.  
– Do not expose the battery to fire, high temperature, or direct sunlight.  
– Do not immerse the battery in water.  
– Do not use or store the battery inside a vehicle during hot weather.  
– Do not drop or puncture the battery.  
– Do not open the battery or short-circuit its contacts.  
The Trimble R7 can be powered either by its two internal batteries or  
by an external power source connected to Port 2 or Port 3. The charge  
provided by the internal batteries depends on the type of survey and  
operating conditions. Typically, one battery provides about 3.5 hours  
of power during an RTK survey using the internal radio, and about  
5 hours during a survey without the internal radio.  
The external power source is always used in preference to the internal  
batteries. When there is no external power source connected, or if the  
external power supply fails, the internal batteries are used. The  
internal batteries are drained in turn, and the receiver automatically  
switches to the full battery when the first battery is drained.  
If no external power is supplied and both internal batteries are drained,  
none of the data that you have logged is lost. When internal or external  
power is restored, the receiver restarts in the same state as when power  
was lost. For example, if the receiver was logging data, the data file is  
not corrupted, and when power is restored the receiver resumes  
logging with the same settings as before.  
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General Operation  
The power supply that is supplied with the Trimble R7 receiver  
charges the receiver internal batteries while they are still in the  
receiver. To do this, connect the power supply to the power/serial data  
cable, connect the cable to Port 2 on the receiver, and connect the  
power supply to an AC power source, as shown in Figure 4.2.  
Power/serial data cable  
2
3
To AC  
power supply  
Figure 4.2  
Charging the batteries  
The two internal batteries take approximately eight hours to charge.  
They are charged individually, so each battery takes approximately  
four hours to charge. The internal batteries start charging whenever an  
external power supply of greater than 15 V is detected.  
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4
WARNING – Avoid contact with the rechargeable Lithium-ion battery if it  
appears to be leaking. Battery fluid is corrosive, and contact with it can  
result in personal injury and/or property damage.  
C
To prevent injury or damage:  
– If the battery leaks, avoid contact with the battery fluid.  
– If battery fluid gets into your eyes, immediately rinse your eyes with  
clean water and seek medical attention. Do not rub your eyes!  
– If battery fluid gets onto your skin or clothing, immediately use clean  
water to wash off the battery fluid.  
Each receiver in your system is supplied with two internal Lithium-ion  
battery packs. To charge both sets of batteries, connect both receivers  
to power supplies as shown in Figure 3.2.  
48.1  
Battery charging and storage  
All battery types discharge over time when they are not being used.  
Batteries also discharge faster in colder temperatures. If a Lithium-ion  
battery is to be stored for long periods of time, make sure it is fully  
charged before storing and re-charged at least every three months.  
WARNING – Charge and use the rechargeable Lithium-ion battery only in  
C
strict accordance with the instructions. Charging or using the battery in  
unauthorized equipment can cause an explosion or fire, and can result in  
personal injury and/or equipment damage.  
To prevent injury or damage:  
– Do not charge or use the battery if it appears to be damaged or leaking.  
– Charge the Lithium-ion battery only in a Trimble product that is specified  
to charge it. Be sure to follow all instructions that are provided with the  
battery charger.  
– Discontinue charging a battery that gives off extreme heat or a burning  
odor.  
– Use the battery only in Trimble equipment that is specified to use it.  
– Use the battery only for its intended use and according to the  
instructions in the product documentation.  
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General Operation  
Charging the Lithium-ion battery  
The rechargeable Lithium-ion battery is supplied partially charged.  
Charge the battery completely before using it for the first time. If the  
battery has been stored for longer than six months, charge it before  
use.  
To protect the battery from deep discharge (5 volts or less), the  
Trimble R7 system is designed to switch batteries or cease drawing  
power when the battery pack discharges to 5.9 volts.  
A battery that has reached the deep discharge level cannot be  
recharged and must be replaced. The following recommendations  
provide optimal performance and extend the life of your batteries:  
Fully charge all new batteries prior to use.  
Do not allow the batteries to discharge below 5 volts.  
Keep all batteries on continuous charge when not in use.  
Batteries may be kept on charge indefinitely without damage to  
the receiver or batteries.  
Do not store batteries in the receiver or external charger unless  
power is applied.  
If you must store the batteries, fully charge them before storing  
and then recharge them at least every three months.  
Disposing of the rechargeable Lithium-ion battery  
Discharge the Lithium-ion battery before disposing of it. When  
disposing of the battery, be sure to do so in an environmentally  
sensitive manner. Adhere to any local and national regulations  
concerning battery disposal or recycling.  
48.2  
Operating with the TSC1/TSCe controller  
If the receiver is being powered by its internal batteries, it does not  
supply power to the TSC1/TSCe controller when they are connected.  
However, the TSC1/TSCe batteries and the Trimble R7 batteries can  
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4
be charged at the same time from the same power supply. To charge  
both sets of batteries, use two standard power/serial data cables to  
connect the TSC1/TSCe controller and the receiver to a power supply,  
as shown in Figure 4.3.  
Power/serial data cables  
2
3
To AC  
power supply  
Figure 4.3  
Charging receiver and TSC1/TSCe batteries  
48.3  
Power output  
If the receiver is being supplied with power from an external source,  
power is automatically output on Port 1. The output voltage is  
approximately 0.5 V less than the input voltage. Port 1 outputs a  
maximum voltage of 20 V, even if the input voltage is higher.  
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General Operation  
You can use GPS Configurator or Trimble Survey Controller to enable  
power output on Port 3. Port 3 can be enabled for power output  
regardless of whether power is supplied internally or externally.  
On Port 3, the output voltage is approximately 0.5 V less than the  
input voltage. For example, if power is being supplied from the  
internal Lithium ion batteries, the maximum battery voltage is 8.4 V,  
so the maximum output voltage is 7.9 V.  
Note – When you start a survey using Trimble Survey Controller, and  
you are using an external radio, the software automatically enables  
power output on Port 3.  
48.4  
Firmware  
A receiver’s firmware is the program inside the receiver that makes the  
receiver run and controls the hardware. When you need to upgrade the  
firmware for your Trimble R7 receiver, Trimble recommends that you  
use WinFlash. For more information, see WinFlash Software, page 71.  
WARNING – Upgrading the firmware deletes all application files on the  
Trimble R7 receiver.  
C
An alternative method of upgrading your firmware is to copy the .elf  
file directly to the CompactFlash card from your computer.  
To do this:  
1. Connect the CompactFlash card to your desktop computer.  
2. Using Windows Explorer, copy the .elf file from your computer  
to the CompactFlash card.  
3. Disconnect the CompactFlash card from your computer and  
insert it into the receiver.  
4. Turn the receiver off.  
5. Hold down d and press p.  
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The receiver starts up in Monitor mode, automatically detects  
the newer version of the firmware, and installs it. In Monitor  
mode, the red SV Tracking LED is lit solidly and the yellow  
Logging/Memory LED flashes slowly.  
The upgrade takes about two minutes. Once the upgrade  
procedure is complete, the receiver restarts automatically.  
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4
General Operation  
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C H A P T E R  
5
Configuration  
5
In this chapter:  
Q Introduction  
Q Configuring the Receiver in Real Time  
Q Configuring the Receiver Using Application Files  
Q Application Files  
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5
Configuration  
5.1  
Introduction  
The Trimble R7 receiver has no controls for changing settings. To  
configure the receiver, use external software, such as the GPS  
Configurator or Trimble Survey Controller software.  
There are two ways to configure the Trimble R7:  
Configuring the receiver in real time  
Applying the settings in an application file  
This chapter provides a brief overview of each of these methods, and  
describes the contents and use of application files.  
5.2  
Configuring the Receiver in Real Time  
The GPS Configurator and Trimble Survey Controller software  
support real-time configuration of the Trimble R7 receiver.  
When you configure the receiver in real time, you use one of these  
software applications to specify which settings you want to change.  
When you apply the changes, the receiver settings change  
immediately.  
Any changes that you apply to the receiver are reflected in the Current  
application file, which is always present in the receiver. The Current  
application file always records the most recent configuration, so if you  
apply further changes (either in real time or using an application file)  
the Current file is updated and there is no record of the changes that  
you applied originally.  
For more information on configuring the receiver in real time, see  
Chapter 7, Software Utilities.  
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5
5.3  
An application file contains information for configuring a receiver. To  
configure a receiver using an application file, you need to create the  
application file, transfer it to the receiver, and then apply the file  
settings. GPS Configurator does this for you automatically when you  
work with configuration files.  
For more information on applying application files, see Chapter 7,  
Software Utilities.  
5.4  
Application Files  
An application file is organized into records. Each record stores  
configuration information for a particular area of receiver operation.  
Application files can include the following records:  
File Storage  
General Controls  
Serial Port Baud/Format  
Reference Position  
Logging Rate  
SV Enable/Disable  
Output Message  
Antenna  
Device Control  
Static/Kinematic  
Input Message  
Timed Activation  
An application file does not have to contain all of these records. When  
you apply an application file, any option that is not included in the  
records in the file remains at its current setting. For example, if you  
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5
Configuration  
apply an application file that only specifies the elevation mask to use,  
all other settings remain as they were before the application file was  
applied.  
You can store up to twenty different application files in battery-backed  
memory on the receiver. You can apply an application file’s settings at  
the time it is transferred to the receiver, or at any time afterwards.  
54.1  
Special application files  
The Trimble R7 has three special application files, which control  
important aspects of the receiver’s configuration.  
The default application file (Default.cfg) contains the original receiver  
configuration, and cannot be changed. This file configures the receiver  
after it is reset. You can reset the receiver by holding down p for at  
least 15 seconds, or by using the reset option in GPS Configurator.  
For more information on the default receiver settings, see Default  
Settings, page 85.  
Although you cannot change or delete the default application file, you  
can use a power up application file to override any or all of the default  
settings.  
Current application file  
The current application file (Current.cfg) reflects the current receiver  
configuration. Whenever you change the receiver’s configuration,  
either in real time or by applying an application file, the current file  
changes to match the new configuration.  
You cannot delete the current file or change it directly, but every  
change to the receiver’s current configuration is applied to the current  
file as well.  
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Configuration  
5
When you switch off the receiver then turn it on again, all the settings  
from the current application file are applied, so you do not lose any  
changes that you have made. The only exceptions are the following  
logging parameters:  
Logging rate  
Position rate  
Elevation mask  
These parameters are always reset to the factory default values  
whenever the receiver is switched off.  
Power Up application file  
The power up application file (Power_up.cfg) is optional. If a power  
up file is present, its settings are applied whenever the receiver is  
powered up.  
In this file, you can specify that the receiver is reset to defaults before  
the power up settings are applied. This ensures that restarting the  
receiver always results in the same configuration. This method is  
useful for defining “default” settings for the receiver that differ from  
those in the default file, which cannot be changed.  
Alternatively, you can specify that the power up settings are applied  
immediately after the current application file’s settings have been  
applied. Restarting the receiver results in a configuration that uses  
your default settings for the options you define in the power up file,  
but the current settings for all other options.  
By default, there is no POWER_UP application file on the receiver. To  
use a power up application file, you must create and save a  
POWER_UP application file in GPS Configurator. If you save this file  
to disk, the file is called Power_up.cfg. The extension .cfg is used by  
convention to identify application files on the office computer. When  
you transfer this file to the receiver, the file is saved on the receiver as  
POWER_UP, and becomes the new power up file.  
The power up file is the only special application file that you can  
overwrite or delete from the receiver.  
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Configuration  
54.2  
Timed application files  
A timed application file contains a Timed Activation record which  
specifies when this file is to be applied. The main use of a timed  
application file is to automatically start or stop logging at a predefined  
time.  
The Timed Activation record specifies:  
the UTC date and time when the application file is to be applied  
for the first time  
the interval at which the file is to be reapplied  
If you do not specify a repeat interval, the settings are applied only  
once, at the specified time. If the file specifies a repeat interval, the  
file’s settings are reapplied at the specified interval until the file is  
deactivated.  
Note – If the receiver is logging continuously, the current logging  
takes precedence over any timed application file stored in the receiver.  
Defining timed application files  
To send timed application files to a Trimble R7, set up scheduled  
survey sessions in GPS Configurator. You can define multiple  
sessions, each specifying:  
basic logging parameters (data logging rate, position logging  
rate, and elevation mask)  
a starting time  
a duration  
When you apply the current settings in GPS Configurator, each  
defined survey session is sent to the Trimble R7 as a pair of timed  
application files: the first includes the logging settings and start time,  
and the second contains settings that stop logging at the end time  
(which is calculated automatically from the duration you specify).  
For more information on scheduled survey sessions, refer to the GPS  
Configurator Help.  
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Configuration  
5
The receiver can store up to 20 application files, so you can define a  
maximum of 10 scheduled survey sessions (10 pairs of start/stop timed  
application files).  
Sleep mode  
Whenever you press p to turn off the Trimble R7, it checks for a  
timed application file that is due to be activated in the future. If one  
exists, the receiver goes into Sleep mode instead of powering down.  
In Sleep mode, the yellow Logging/Memory LED flashes every three  
seconds. The receiver wakes up five minutes before the scheduled  
activation time, so that it is ready to begin logging at the scheduled  
time.  
54.3  
Applying application files  
An application file’s settings do not affect the receiver’s configuration  
until you apply the application file. You can do this at the same time  
that you save the file. Alternatively, save the file on the computer or in  
the receiver, then open it later and apply its settings.  
Note – If the application file is a timed file, its settings do not take  
effect as soon as you apply the file, but at the time that the file specifies  
for its activation.  
54.4  
Storing application files  
You can store application files that you create in GPS Configurator on  
the receiver and on the computer. For example, each file can represent  
a different user sharing the same receiver, or a particular mode of  
operation or survey style. Saving application files on your computer as  
well as in your receiver is optional, but it is useful because:  
it gives you a permanent copy of the settings you have sent to a  
receiver, for audit or your own reference.  
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Configuration  
you can use the same file to configure multiple receivers  
identically.  
you can use an existing application file as a template for  
creating other application files with similar settings.  
54.5  
Naming application files  
The application filename in the office computer and in the receiver is  
always the same. This makes it easier to recognize and keep track of  
your application files.  
When you change the name of the application file in the receiver, this  
changes the application filename on your computer. When you  
transfer an application file from the receiver and save it to the  
computer, the system renames the file to match the internal receiver  
file. However, if you use Windows Explorer, for example, to change  
the .cfg filename on the computer, this does not change the internal  
receiver filename. This means that the GPS receiver does not  
recognize the change to the filename on the computer.  
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C H A P T E R  
6
Transferring Data  
6
In this chapter:  
Q Introduction  
Q Connecting to the Office Computer  
Q Transferring Data  
Q Transferring Files Directly from a Compactflash Card  
Q Deleting Files in the Receiver  
Q Supported File Types  
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6
Transferring Data  
6.1  
Introduction  
The Trimble R7 receiver keeps satellite measurements and other data  
in files stored on a CompactFlash card. These files cannot be  
processed until you transfer them to your office computer.  
Note – The receiver supports a maximum of 512 files on the  
CompactFlash cards.  
On returning to the office after completing a survey, transfer the field  
data to a computer that has the Trimble Geomatics Office™ software  
installed. You can then process the survey data in Trimble Geomatics  
Office to produce baselines and coordinates.  
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Transferring Data  
6
6.2  
Connecting to the Office Computer  
The Trimble R7 has three serial (COM) ports and one USB port for  
connection to the office computer. A USB connection is up to ten  
times faster than normal serial communications.  
Use the standard power/serial data cable to connect the receiver to the  
computer, as shown in Figure 6.1.  
Power/serial data  
cable  
Serial (COM) port  
Port 2  
Figure 6.1  
Connecting the Trimble R7 to a computer for serial data transfer  
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Transferring Data  
Use the USB cable to connect the receiver to the computer, as shown  
in Figure 6.2.  
USB cable  
USB port  
USB port  
Figure 6.2  
Connecting the Trimble R7 to a computer for USB data transfer  
Note – When the receiver is connected to a USB port on a computer, it  
is treated as a peripheral device of the computer. If the receiver is  
unplugged or powered down, a warning message is displayed on the  
computer.  
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6.3  
Transferring Data  
Transfer the data files to the computer using the Trimble Data Transfer  
utility. You can run this utility as a standalone program or from within  
Trimble Geomatics Office. For more information about the transfer  
process, refer to the Data Transfer Help.  
Note – When you connect to a receiver in the Data Transfer utility, you  
must use a GPS Receiver (R/5000 Series) device definition. If you use  
a GPS Receiver (4000 Series) device definition, the Data Transfer  
utility will be unable to establish communication with the receiver.  
When transfer is complete, the Data Transfer utility automatically  
converts the file to the DAT format. If you are using Data Transfer  
from within Trimble Geomatics Office, the Check-in dialog appears.  
For more information, refer to the Trimble Geomatics Office User  
Guide.  
Note – A file in DAT format is approximately six times the size of the  
corresponding file in the Trimble R7 internal format. Before  
transferring files, make sure that there is enough space on your  
computer.  
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Transferring Data  
6.4  
Transferring Files Directly from a CompactFlash  
Card  
All data is stored in a Trimble R7 receiver on an internal  
CompactFlash card. There are two ways to transfer files between the  
receiver and the office computer:  
Connect the receiver to the office computer and use the Data  
Transfer utility to transfer files.  
Remove the CompactFlash card from the receiver and connect it  
directly to your office computer, where it functions like a  
normal disk drive. Use Windows Explorer to transfer files.  
When you use the Data Transfer utility to transfer data files from the  
CompactFlash card while it is still inserted in the receiver, the Data  
Transfer utility converts the raw receiver data (.T01) files you select  
into the Trimble DAT file format.  
However, if you connect the CompactFlash card to your computer and  
then copy or move files to your computer, it treats the card like any  
other disk drive, and transfers the files without converting them. You  
need to convert these raw receiver files to DAT format files before you  
can use them on your office computer.  
You can convert receiver data files by using a Windows Explorer  
extension which is installed on your computer when you install the  
Data Transfer utility.  
Note – Although this extension is only available if you have the Data  
Transfer utility installed, you do not have to run the Data Transfer  
utility to use it.  
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Transferring Data  
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To convert a .T01 file on your office computer into the DAT format:  
1. On your office computer, open Windows Explorer and navigate  
to the location of the .T01 file.  
2. Right-click the file, and from the menu that appears select  
Convert to DAT format:  
The DAT File Conversion dialog appears while the file is  
converted. When the dialog disappears, the file conversion is  
complete.  
A new file with the same filename but a .dat extension appears  
in the same folder as the .T01 file.  
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Transferring Data  
6.1  
Deleting Files in the Receiver  
You can delete files stored in the receiver at any time. Do one of the  
following:  
Use the Data Transfer utility in Trimble Geomatics Office.  
Use the TSC1/TSCe controller.  
Hold down the power button p for 30 seconds after the  
receiver has been powered on. (When you use this method, all  
data is deleted, and the CompactFlash card is reformatted.)  
Use GPS Configurator.  
6.2  
Supported File Types  
Table 6.1 shows the file types that you can transfer to or from a  
Trimble R7 receiver, and the software or utility that you must use to  
transfer each file type.  
Table 6.1  
File Type  
Supported file types  
Extensions  
Transfer from  
Trimble R7?  
Transfer to  
Trimble R7?  
Software  
Ephemeris  
.eph  
.T01, .dat  
.elf  
Yes  
Yes  
No  
No  
No  
Data Transfer  
Data Transfer  
WinFlash  
Raw observations  
Receiver firmware files  
Application files  
Yes  
Yes  
.cfg  
Yes  
GPS  
Configurator  
Note – The Trimble R7 receiver supports a maximum of 512 files on  
the CompactFlash card. Files stored on the compact flash must be 8.3  
format. The Trimble R7 receiver does not support extended file names.  
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C H A P T E R  
7
Software Utilities  
7
In this chapter:  
Q Introduction  
Q GPS Configurator Software  
Q WinFlash Software  
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Software Utilities  
7.1  
Introduction  
This chapter provides information on the software utilities that you  
can use with the Trimble R7 receiver.  
7.2  
GPS Configurator Software  
GPS Configurator is office software that configures selected Trimble  
GPS receivers.  
GPS Configurator lets you:  
edit and save configuration files to the receiver and the  
computer  
check current receiver settings and operation  
change receiver settings in real time  
72.1  
Installing GPS Configurator  
A copy of GPS Configurator is included on the Trimble R7,  
Trimble R8, 5700, and 5800 GPS Receivers CD.  
To install the software:  
1. Insert the disk into the CD drive on your office computer.  
2. From the main menu select Install individual software  
packages.  
3. Select Install GPS Configurator vX.XX.  
4. Follow the on-screen instructions.  
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70.1  
Configuring the Trimble R7 receiver  
To configure a Trimble R7 receiver using GPS Configurator:  
1. Connect Port 1 or 2 on the receiver to a serial (COM) port on  
the computer and apply power.  
2. To start GPS Configurator, click  
and then select  
Programs / Trimble / GPS Configurator / GPS Configurator.  
3. Select Trimble R7 in the Device Type dialog.  
The software automatically establishes a connection with the  
receiver.  
4. Make appropriate selections for your required receiver settings.  
For more information, refer to the GPS Configurator Help.  
5. Click Apply.  
The settings in GPS Configurator are applied to the receiver.  
7.1  
WinFlash Software  
WinFlash communicates with Trimble products to perform various  
functions including:  
installing software, firmware, and option upgrades  
running diagnostics (for example, retrieving configuration  
information)  
configuring radios  
For more information, online help is also available when using  
WinFlash.  
Note – WinFlash runs on Microsoft Windows 95, 98, NT, 2000, Me, or  
XP operating systems.  
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Software Utilities  
71.1  
Installing WinFlash  
WinFlash can be installed from the Trimble R7, Trimble R8, 5700, and  
5800 GPS Receivers CD, or from the Trimble website.  
Installing WinFlash from the CD  
1. Insert the disk into the CD drive on your computer.  
2. From the main menu select Install individual software  
packages.  
3. Select Install WinFlash vX.XX with Trimble R7 drivers and  
firmware.  
4. Follow the on-screen instructions.  
70.1  
Upgrading firmware  
Your Trimble R7 receiver is supplied with the latest version of receiver  
firmware installed. If a later version becomes available, upgrade the  
firmware installed on your receiver.  
WinFlash guides you through the firmware upgrade process. The steps  
required are described below. For more information, refer to the  
WinFlash Help.  
To upgrade the Trimble R7 receiver firmware:  
1. Start WinFlash.  
The Device Configuration screen appears.  
2. From the Device type list select Trimble R7 Receiver.  
3. From the PC serial port field select the serial (COM) port on  
the computer that the receiver is connected to.  
4. Click Next.  
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The Operation Selection screen appears. The Operations list  
shows all of the supported operations for the selected device. A  
description of the selected operation is shown in the Description  
field.  
5. Select GPS software upgrade and click Next.  
The GPS Software Selection window appears. This screen  
prompts you to select the software that you want to install on  
the Trimble R7 receiver.  
6. Select the latest version from the Available Software list and  
click Next.  
The Settings Review window appears. This screen prompts you  
to connect the receiver, suggests a connection method, and then  
lists the receiver configuration and selected operation.  
7. If all is correct, click Finish.  
Based on the selections shown above, the Software Upgrade  
window appears and shows the status of the operation (for  
example, Establishing communication with the Trimble R7. Please wait.).  
8. Click OK.  
The Software Upgrade window appears again and states that the  
operation was completed successfully.  
9. Click Menu to select another operation, or click Exit to quit  
WinFlash.  
10. If you click Exit, another screen appears asking you to confirm  
that you want to quit WinFlash. Click OK.  
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Software Utilities  
70.1  
Adding frequencies for the 450 MHz internal radio  
If your receiver has the optional internal radio installed, you can use  
WinFlash to add receiving frequencies to the default list.  
To add radio receiving frequencies:  
1. Start WinFlash.  
The Device Configuration screen appears.  
2. From the Device type list select Trimble R7 Receiver.  
3. From the PC serial port field select the serial (COM) port on  
the computer that the receiver is connected to.  
4. Click Next.  
The Operation Selection screen appears. The Operations list  
shows all of the supported operations for the selected device. A  
description of the selected operation is shown in the Description  
field.  
5. Select Configure Radio and click Next.  
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The Frequency Selection window appears:  
6. In the Wireless Format group, select the appropriate channel and  
wireless mode. The Wireless Mode must be the same for all  
radios in your network.  
7. In the Specify Frequency field, enter the frequency you require.  
8. Click Add. The new frequency appears in the Selected  
Frequencies list.  
Note – The frequencies that you program must conform to the channel  
spacing and minimum tuning requirements for the radio. To view this  
information, click Radio Info. You may select either 12.5 or 25 kHz  
channel spacing. All radios in your network must use the same  
channel spacing.  
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Software Utilities  
9. When you have configured all the frequencies you require, click  
OK.  
WinFlash updates the receiver radio frequencies and then  
restarts the receiver.  
70.1  
Configuring the internal 900 MHz radio setup  
To configure the internal 900 MHz radio, use one of the following:  
Trimble Survey Controller running on a Trimble controller  
WinFlash (provided on the Trimble R7, Trimble R8, 5700, and  
5800 GPS Receivers CD)  
The internal radio has 40 selectable networks. You must choose the  
same network that is configured in the base radio you want to receive  
from.  
Trimble Survey Controller  
To configure the radio network using Trimble Survey Controller:  
1. Connect the data/power cable to the controller and the receiver  
and turn on the controller. The receiver starts automatically.  
2. From the main menu on the controller, select Configuration.  
3. In the dialog that appears, select Survey styles, then from the  
Type field, select RTK.  
4. Select Rover radio, then from the Type field select Trimble  
Internal.  
5. Tap the ! softkey.  
6. Once connected, in the Network number field enter the number  
of the network set on your base radio.  
Note – The Base Radio Mode field is not used here.  
7. Tap the E softkey to complete configuration.  
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Software Utilities  
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WinFlash  
To configure the radio network using WinFlash:  
1. Connect the data/power cable to Port 1 on the receiver.  
2. Connect the female DE-9 connector on the other end of the  
data/power cable to a serial (COM) port on the computer.  
3. Start WinFlash. The Device Configuration dialog appears.  
4. From the Device type list, select Trimble R7 Receiver.  
5. From the PC serial port field, select the serial port on the  
computer that the receiver is connected to and click Next.  
6. From the Operation selection dialog, select Configure radio and  
click Next.  
7. Confirm that your current settings are correct and click Finish.  
The Configure 900MHz radio dialog appears.  
8. In the Network number field, select the same network that is set  
on your base radio.  
9. In the Country setting field, select one of the following  
(according to how your base radio was shipped):  
Your country (if available). This sets the radio to the a specific  
frequency range being transmitted by the base radio.  
– A single frequency. This limits the frequencies used to those  
authorized in your particular country.  
10. Click OK.  
WinFlash updates the radio settings and then restarts the receiver.  
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C H A P T E R  
8
Specifications  
8
In this chapter:  
Q Introduction  
Q Physical Specifications  
Q Positioning Specifications  
Q Technical Specifications  
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8
Specifications  
8.1  
Introduction  
This chapter lists the specifications of the Trimble R7 receiver.  
8.2  
Physical Specifications  
Table 8.1 lists physical specifications for the Trimble R7. The  
temperature rating of the receiver applies only when all doors on the  
receiver are closed.  
Table 8.1  
Physical specifications  
Specification  
Feature  
Size  
13.5 cm W x 8.5 cm H x 24 cm L  
(5.3 in. W x 3.4 in. H x 9.5 in. L)  
Weight  
1.4 kg (3.0 lb)  
(with 2 batteries inserted)  
Battery life  
(at 20 °C)  
RTK with internal radio: 3.5 hours  
No internal radio: 5 hours  
Power input  
11–28 V DC  
–40 °C to +65 °C (–40 °F to +149 °F)a  
Operating temperature  
Storage temperature  
Humidity  
–40 °C to +80 °C (–40 °F to +176 °F)  
100% condensing, unit fully sealed  
Dust-proof, shock- and vibration-resistant  
Casing  
aThe USB port only operates when the temperature is above 0 °C (32 °F). The internal  
batteries only charge when the temperature is in the range 0 °C to 40 °C (32 °F to 104 °F)  
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8.3  
Positioning Specifications  
Table 8.2 lists positioning specifications for the Trimble R7.  
Table 8.2  
Positioning specifications  
Positioning  
Mode Horizontal Accuracy Vertical Accuracy  
(RMS)  
(RMS)  
RTK (OTF)  
Synchronized  
Low Latency  
1 cm + 1 ppm  
(× baseline length)  
2 cm + 1 ppm  
(× baseline length)  
2 cm + 2 ppm  
(× baseline length)  
3 cm + 2 ppm  
(× baseline length)  
a
a
L1 C/A Code  
Phase  
Synchronized/  
Low Latency  
.25 m + 1 ppm RMS .50 m + 1 ppm RMS  
Static/  
N/A  
5 mm + 0.5 ppm  
5 mm + 1 ppm  
FastStatic  
(× baseline length)  
(× baseline length)  
b
b
WAAS  
N/A  
Less than 5 m  
Less than 5 m  
aDepends on radio link latency.  
b3D RMS values depend on WAAS system performance.  
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Specifications  
8.4  
Technical Specifications  
Table 8.3 lists technical specifications for the Trimble R7.  
Table 8.3  
Technical specifications  
Specification  
Feature  
Tracking  
24 Channels L1 C/A Code, L2C, L1/L2 Full Cycle  
Carrier, WAAS/EGNOS support  
Fully operational during P-code encryption  
WAAS satellite tracking  
Signal processing  
Maxwell V architecture  
Very low-noise C/A code processing  
Multipath suppression  
Start-up  
Cold start: < 60 seconds from power on  
Warm start: < 30 seconds with recent ephemeris  
Initialization  
Automatic while moving or static  
Minimum  
initialization time  
10 sec + 0.5 × baseline length (km)  
Communications  
Three RS-232 serial ports (Port 1, Port 2, and Port 3)  
Baud rates up to 115,200 bps  
RTS/CTS flow control negotiation supported on Port 3  
only  
One USB port (download only)  
Configuration  
Via user-definable application files or GPS  
Configurator  
Output formats  
NMEA-0183: AVR; GGA; GSA; GST; GSV;  
PTNL,GGK; PTNL,GGK_SYNC; HDT; PTNL,PJK;  
PTNL,PJT; ROT PTNL,VGK; VHD; VTG; ZDA  
GSOF (Trimble Binary Streamed Output)  
1PPS  
RT17  
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C H A P T E R  
9
Default Settings  
9
In this chapter:  
Q Introduction  
Q Default Settings  
Q Resetting to Factory Defaults  
Q Examples  
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Default Settings  
9.1  
Introduction  
All Trimble R7 receiver settings are stored in application files. The  
Default application file, Default.cfg, is stored permanently in the  
receiver, and contains the factory default settings for the Trimble R7.  
Whenever the receiver is reset to its factory defaults, the current  
settings (stored in the Current application file, Current.cfg) are reset to  
the values in the Default application file.  
You cannot modify the Default application file. However, if there is a  
Power Up application file (Power_Up.cfg) in the receiver, the settings  
in this file can be applied immediately after the Default application  
file, overriding the factory defaults.  
For more information about application files, see Application Files,  
page 55.  
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9
9.2  
Default Settings  
Table 9.1 shows the default settings for the Trimble R7 receiver, as  
defined in the default application file.  
Table 9.1  
Default settings  
Function  
Factory Default  
All SVs enabled  
13°  
SV Enable  
General Controls:  
Elevation mask  
PDOP mask  
7
RTK positioning mode  
Motion  
Low Latency  
Kinematic  
Disabled  
Off  
Power Output 3  
1PPS time tags  
ASCII time tags  
Serial Port 1:  
Off  
Baud rate  
Format  
38400  
8-None-1  
None  
Flow control  
Baud rate  
Format  
Serial Port 2:  
Serial Port 3:  
38400  
8-None-1  
38400  
Baud rate  
Format  
8-None-1  
None  
Flow control  
Station  
Input Setup:  
Any  
NMEA/ASCII (all messages)  
Streamed output  
All Ports Off  
All Types Off  
Offset = 00  
RT17/Binary  
CMR output  
RTCM output  
All Ports Off  
[Static] CMR: cref ID 0000  
RTCM: Type 1 ID 0000  
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9
Default Settings  
Table 9.1  
Function  
Default settings (continued)  
Factory Default  
Reference position:  
Latitude  
0°  
Longitude  
0°  
Altitude  
0.00 m HAE  
Antenna:  
Type  
Unknown external  
Height (true vertical)  
Group  
0.00 m  
All  
Measurement method  
Bottom of antenna mount  
Logging rate  
15 sec  
5 min  
10 Hz  
Position rate  
Measurement rate  
9.3  
Resetting to Factory Defaults  
To reset the receiver to its factory defaults, as defined above, do one of  
the following:  
Press and hold down p on the receiver for 15 seconds.  
In GPS Configurator, select Connect to Receiver and then click Reset  
receiver in the General tab.  
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9.4  
Examples  
The following examples show how the Trimble R7 uses the default  
settings and special application files in various situations.  
94.1  
Default behavior  
The factory defaults specified above are applied whenever you start  
the receiver. If a Power Up file is present in the receiver, its settings  
are applied immediately after the default settings, so you can use a  
Power Up file to define your own set of defaults.  
When you turn the receiver on and … then logging settings are … and logging …  
it is the first time that the receiver has  
been used  
the factory defaults  
does not begin  
automatically  
you have reset the receiver to its factory  
defaults  
the factory defaults, or those  
in the Power Up file  
does not begin  
automatically  
a
you have performed a full reset  
the factory defaults, because  
resetting deletes any Power  
Up file  
does not begin  
automatically  
aA factory default setting is only used if the setting is not defined in the Power Up file.  
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Default Settings  
94.2  
Power up settings  
When you turn the receiver off, any changes that you have made to  
logging settings are lost and these settings are returned to the factory  
defaults. Other settings remain as defined in the Current file. The next  
time you turn on the receiver, the receiver checks for a power up file  
and, if one is present, applies the settings in this file.  
When you use p to turn the receiver  
off then on again and …  
then logging  
settings are …  
and all other settings  
are …  
you changed the receiver settings by  
applying an application file  
the factory defaults  
the factory defaults  
the last settings used  
you changed the receiver settings using  
configuration software  
the last settings used  
the last settings used, or  
those in the Power Up  
filea  
there is a Power Up application file in the  
receiver  
the factory defaults, or  
those in the Power Up  
file  
a
aA factory default setting is used only if the setting is not defined in the Power Up file.  
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94.3  
Logging after power loss  
If the Trimble R7 loses power unexpectedly, when power is restored  
the receiver tries to return to the state it was in immediately before the  
power loss. The receiver does not reset itself to defaults or apply any  
Power Up settings. If the receiver was logging when power was lost  
unexpectedly, it resumes logging when power is restored.  
However, when you switch the receiver off using p, the receiver  
behaves as if you pressed d to stop logging before you pressed p.  
In this case, when power is restored normally, logging does not begin  
until you start it manually.  
When the receiver is logging  
data and then loses power …  
then when power  
is restored, data  
logging …  
and logging  
settings are …  
and all other  
settings are …  
unexpectedly  
resumes  
automatically  
the last settings  
used  
the last settings  
used  
when you press p  
does not resume  
the factory  
defaults  
the last settings  
used  
94.4  
Disabling logging  
You can disable logging by setting the receiver’s data logging and  
position logging rates to Off. However, if you press d while logging  
is disabled, the receiver will still log data, using the default logging  
settings.  
When you have disabled logging …  
then if you press d to start logging,  
logging settings are …  
using the Trimble Survey Controller or GPS  
Configurator software  
the factory defaults  
the factory defaults  
in the Power Up application file  
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Default Settings  
94.5  
Application files  
You can use application files to change the settings in the receiver.  
Sending an application file to the receiver does not necessarily apply  
the file’s settings; you can apply a file’s settings at any time after  
sending it to the receiver. You can also define timed application files.  
A timed application file contains receiver settings, but also includes a  
date and time when it is automatically activated.  
If there is a timed application file on the Trimble R7, the receiver  
automatically applies the file’s settings and begins logging (if logging  
settings are included in the file) at the specified time. If the receiver is  
in Sleep mode, it wakes up five minutes before the start time of the  
timed application file, and then begins logging, if required, at the  
specified start time.  
When you send an application file to  
the receiver and …  
then the receiver settings are changed …  
you apply the file’s settings immediately as soon as you send the file to the receiver  
you apply the file later  
as soon as you apply the file  
at the specified activation time  
it is a timed application file  
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C H A P T E R  
10  
10  
Cables and Connectors  
In this chapter:  
Q Introduction  
Q Port 1, 2, and 3 Connectors  
Q Power/serial Data Cable  
Q Event/PPS Cable  
Q GPS Antennas and Cables  
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10  
Cables and Connectors  
10.1  
Introduction  
This chapter provides pinout information for the Trimble R7 receiver  
standard and optional cables. This information can be used to build  
special cables for connecting the Trimble R7 to devices and  
instruments not supported by the standard and optional cables.  
10.2  
Port 1, 2, and 3 Connectors  
Figure 10.1 shows the location of the Trimble R7 serial ports.  
Port 1  
Port 2  
Port 3  
Figure 10.1 Trimble R7 serial ports  
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Figure 10.2 gives pinout requirements for the connector labeled  
Port 1. The pin locations for the Port 2 and Port 3 connectors are  
identical.  
6
1
7
5
2
3
4
Figure 10.2 Pinout connectors  
Table 10.1 describes the pinout functionality.  
Table 10.1  
Pin  
Trimble R7 port pinouts  
Pinout function  
Port 1 (TSC1/TSCe  
controller, event, or  
Port 2 (Power in,  
computer, PPS, or event) power in)  
Port 3 (External radio or  
computer)  
1
2
3
4
5
6
7
Signal GND  
GND  
Signal GND  
GND  
Signal GND  
GND  
TX data out (TXD1)  
RTS1  
TX data out (TXD2)  
1PPS  
TX data out (TXD3)  
RTS3  
CTS1/Event 2  
Power Out (+)  
Serial data in (RXD1)  
Event 1  
CTS3  
Power In (+)  
Serial data in (RXD2)  
Power In/Out (+)  
Serial data in (RXD3)  
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Cables and Connectors  
10.3  
Power/serial data cable  
Table 10.2 gives pinout information for the power/serial data cable  
(PN 32345), which is supplied with the Trimble R7.  
Table 10.2  
Power/serial data cable pinouts  
Lemo 0-shell  
connector  
Direction DE9-F connector  
Power lead  
2 Conductors  
7 Pin  
7 Conductors  
Pin Function  
Pin Color  
Function  
Signal ground  
Color  
Function  
1
2
3
4
5
6
7
Signal ground  
5
Brown  
GND  
Black  
V-OUT  
TXD  
8
7
Orange TXD  
RTS/TXD  
CTS/RXD  
PWR  
Blue  
RTS  
CTS  
Green  
Red  
Power IN (+)  
RXD  
3
Yellow  
TXD  
Note – Table 10.2 assumes that the cable is attached to the connector  
labeled Port 1 or Port 3.  
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10.4  
Event Marker/1PPS Cable  
The event marker/1PPS cable shown in Figure 10.3 provides a  
breakout box with two BNC (female) connectors for providing 1PPS  
input and event marker output.  
Connect a device that accepts 1PPS output pulses to the BNC  
connector labeled 1PPS on the breakout box. Connect a device that  
outputs event marker pulses to the Trimble R7, such as a  
photogrammetric camera, to the BNC connector labeled Event Marker  
on the breakout box.  
P3  
(Event marker)  
P2  
(1PPS out)  
P4  
(Port 2 extension)  
P1  
(To Port 2)  
Figure 10.3 Event marker/1PPS cable  
In addition, the breakout box includes a Lemo 7-pin connector to  
extend serial communications and/or power on Port 2. Because the  
BNC connectors are used to service the event marker and 1PPS  
features, pins 4 (1PPS) and 5 (Event Marker) are inactive on the Lemo  
connector.  
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10  
Cables and Connectors  
For Port 2 pinouts, see Port 1, 2, and 3 Connectors, page 92. For more  
information on 1PPS input and event marker output, see Chapter 11,  
Event Marker Input and 1PPS Output.  
Table 10.3 gives pinout information for the event marker/1PPS cable  
which is supplied with the Trimble R7. The event marker/1PPS cable  
is only used with the Trimble R7 connectors labeled Port 1 (for event  
marker output) and Port 2.  
Table 10.3  
Event marker/1PPS cable pinouts  
P1: Lemo 7-Pin  
Port 2 Trimble R7  
Direction P2: BNC-F  
connector  
P3: BNC-F  
connector  
P4: Lemo 7s  
Port 2 extension  
(1PPS)  
(Event marker)  
Pin Trimble R7  
function  
Pin  
Pin  
Pin Function  
1
2
3
Signal ground  
GND  
1
2
3
Signal ground  
GND  
GND  
GND  
Serial data out  
(TXD2)  
Serial data in  
(TXD2)  
4
5
6
7
1PPS  
Center pin  
4
5
6
7
No Connect  
No Connect  
Power IN (+)  
Event Marker  
Power IN (+)  
Center pin  
Serial data in  
(RXD2)  
Serial data out  
(RXD2)  
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10.5  
GPS Antennas and Cables  
The antenna that a receiver uses to collect satellite signals is  
sometimes called a GPS antenna to distinguish it from a radio antenna.  
Radio antennas are used for communication between receivers and  
external networks or systems.  
Note – Older models of antennas, such as Choke Ring or  
Micro-Centered L1/L2, have different power requirements. The  
Trimble R7 can adjust the antenna power output when you designate  
the appropriate antenna in GPS Configurator. For more information,  
see Antennas, page 35.  
Connect the receiver to its GPS antenna using the yellow TNC  
connector. Use a coaxial cable with a right-angle TNC plug at the  
antenna end.  
If the antenna cable length is …  
up to 15 meters (45 feet)  
use …  
RG-58 cable  
RG-214 cable  
one of the following:  
up to 30 meters (100 feet)  
over 30 meters (100 feet)  
in-line amplifier  
semi-rigid coaxial cable  
a low-loss cable assembly  
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10  
Cables and Connectors  
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C H A P T E R  
11  
Event Marker Input and 1PPS  
Output  
11  
In this chapter:  
Q Introduction  
Q Event Marker Input  
Q 1PPS Output  
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11  
Event Marker Input and 1PPS Output  
11.1  
Introduction  
The Trimble R7 receiver can accept event marker input on Port 1 and  
Port 2, and can generate 1PPS output on Port 2.  
11.2  
Event Marker Input  
Event marker input is used to log a precise GPS time tag whenever an  
externally generated pulse, such as one generated at the time of the  
shutter closing from a photogrammetric camera, is received.  
The event is triggered when the source pulse voltage transitions  
between 1.0 V DC and 2.0 V DC in less than 100 nsec. Trimble  
recommends that you use TTL level inputs. You can configure the  
receiver to recognize either a positive (rising) or negative (falling)  
voltage as the leading edge of a pulse. The accuracy of the associated  
time tag recorded for an event is determined by the GPS accuracy  
(typically less than 1 µsec.).  
The Trimble R7 records each event in the current data file. This record  
includes the port on which the event was received.  
112.1  
Enabling and configuring event marker input  
To enable or configure the event marker input function, you need the  
GPS Configurator software.  
In real time  
You can use GPS Configurator to configure a Trimble GPS receiver  
connected to your office computer. For more information, see GPS  
Configurator Software, page 70, or refer to the GPS Configurator  
Help.  
To enable event marker input:  
1. Connect the computer to the Trimble R7 receiver.  
2. Press p to turn on the receiver.  
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3. To start GPS Configurator, click  
, then select  
Programs / Trimble / GPS Configurator / GPS Configurator.  
The GPS Configurator dialog appears and the software  
automatically connects to the Trimble R7 receiver.  
4. In the General tab, select the Event marker check box.  
5. Select the appropriate option, Positive slope or Negative slope,  
depending on the type of pulse the external device uses.  
6. Click Apply.  
GPS Configurator sends the new configuration information to  
the receiver, and the receiver starts to accept event marker input.  
7. Click OK to exit GPS Configurator.  
The software disconnects from the receiver.  
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Event Marker Input and 1PPS Output  
11.1  
1PPS Output  
The Trimble R7 receiver can output a one pulse per second (1PPS)  
time strobe with an associated ASCII time tag output. The pulse is  
output through Port 2 of the receiver using the event marker/1PPS  
cable.  
111.1  
1PPS pulse definition  
The leading edge of the pulse coincides with the beginning of each  
UTC second, as shown in Figure 11.1. The pulse is driven by an  
RS-422 driver between nominal levels of 0 V and 4 V. The leading  
edge is positive, rising from 0 V to 4 V.  
4 V  
0 V  
Seconds  
Time tag output here  
Time tag applies here  
Figure 11.1 Time tag relation to 1PPS wave form  
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Event Marker Input and 1PPS Output 11  
The pulse is approximately 8 µsec wide, with rise and fall times of  
about 100 nsec. Resolution is approximately 40 nsec, but several  
external factors limit accuracy to approximately 1 µsec:  
Position errors, especially with user-entered reference. Each  
meter of error can result in 3 nsec of error in the 1PPS pulse.  
Antenna cable length. Each meter of cable adds a delay of about  
2 nsec to satellite signals, and a corresponding delay in the  
1PPS pulse.  
111.2  
ASCII time tag definition  
Each time tag is output about 0.5 second before the corresponding  
pulse, as shown in Figure 11.1. Time tags are in ASCII format on a  
user-selected serial port. The format of a time tag is:  
UTC yy.mm.dd hh:mm:ss ab  
Where:  
UTC is fixed text.  
yy.mm.dd is the year, month, and date.  
hh:mm:ss is the hour (on a 24-hour clock), minute, and second.  
The time is in UTC, not GPS time.  
a is the position-fix type:  
1 = 2D Position Fix for E,N only  
2 = 3D Position Fix  
3 = Single SV Clock-only fix  
4 = Automatic Mode  
5 = Reference Station Position  
6 = Two-Dimensional with Fixed Clock  
7 = Overdetermined solution for Clock-only  
b is the number of satellites being tracked: 1 to 9, “:” (for 10),  
“;” (for 11), or “<” (for 12).  
Each time tag is terminated by a carriage return, line feed  
sequence.  
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Event Marker Input and 1PPS Output  
A typical printout looks like this:  
UTC 93.12.21 20:21:16 56  
UTC 93.12.21 20:21:17 56  
UTC 93.12.21 20:21:18 56  
If a and b are ??, the time is based on the receiver clock because the  
receiver is not tracking satellites. The receiver clock is less accurate  
than time readings extracted from satellite signals.  
111.3  
Enabling and configuring 1PPS output  
To enable or configure the 1PPS output function, you need the GPS  
Configurator software.  
In real time  
You can use GPS Configurator to configure a Trimble GPS receiver  
connected to your office computer. For more information, see GPS  
Configurator Software, page 70, or refer to the GPS Configurator  
Help.  
To enable 1PPS output:  
1. Connect the computer to the Trimble R7 receiver.  
2. Turn on the receiver.  
3. To start GPS Configurator, click  
, then select  
Programs / Trimble / GPS Configurator / GPS Configurator.  
The GPS Configurator dialog appears and the software  
automatically connects to the receiver.  
4. Select the Serial outputs tab.  
5. Select the 1PPS (port 2 only) check box.  
6. If you want ASCII time tags enabled, select the check box and  
choose an output port.  
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7. Click Apply.  
GPS Configurator sends the new configuration information to  
the receiver, and the receiver starts to generate 1PPS output on  
Port 2.  
8. Click OK to exit GPS Configurator.  
The software disconnects from the receiver.  
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Event Marker Input and 1PPS Output  
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S E C T I O N  
II  
I
TRIMBLE R8 GPS RECEIVER  
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C H A P T E R  
12  
12  
Overview  
In this chapter:  
Q Introduction  
Q Features  
Q Use and Care  
Q COCOM Limits  
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12  
Overview  
12.1  
Introduction  
This chapter introduces the Trimble R8 GPS receiver. This receiver is  
designed for GPS surveying applications. The receiver incorporates a  
GPS antenna, receiver, internal radio with a transmit option or an  
internal GSM module, and battery in a rugged light-weight unit that is  
ideally suited as an all-on-the-pole RTK rover. Three LEDs allow you  
to monitor the satellite tracking, radio reception, data logging status,  
and power. Bluetooth® wireless technology provides cable-free  
communications between receiver and controller. The Trimble R8  
receiver provides 24 total channels of L1/L2 satellite tracking, and  
supports logging of raw GPS observables to the handheld controller  
for post-processed applications.  
The Trimble R8 is available as a standalone rover, base station, or as  
part of the GPS Total Station® system, offering maximum versatility  
in the system configuration to meet your specific requirements.  
12.2  
Features  
The receiver provides the following features:  
Trimble R-track technology, which allows the receiver to track  
the L2 Civil signal (L2C)  
Centimeter-accuracy, real-time positioning with RTK/OTF data,  
up to 10 Hz position updates  
Submeter-accuracy, real-time positioning using pseudorange  
corrections  
Adaptive dual-frequency RTK engine  
WAAS/EGNOS capability  
Automatic OTF (on-the-fly) initialization while moving  
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Overview 12  
Single Lithium-ion rechargeable battery  
Cable-free Bluetooth communications with the Trimble  
Attachable Control Unit (ACU), or TSCe™ with Bluecap  
module  
Two RS-232 serial ports for:  
NMEA output  
RTCM SC-104 input and output  
Trimble Format (CMR & CMR Plus) input and output  
One TNC radio antenna connector  
6 MB internal memory for data storage  
Internal 450 MHz radio with a transmit option or GSM module  
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12  
Overview  
12.3  
Use and Care  
The Trimble R8 receiver is designed to withstand the rough treatment  
that typically occurs in the field. However, the receiver is a  
high-precision electronic instrument and should be treated with  
reasonable care.  
WARNING – Operating or storing the Trimble R8 receiver outside the  
specified temperature range can damage it. For more information, see  
Chapter 17, Specifications.  
C
High-power signals from a nearby radio or radar transmitter can  
overwhelm the receiver circuits. This does not harm the instrument,  
but it can prevent the receiver electronics from functioning correctly.  
Avoid using the receiver within 400 meters of powerful radar,  
television, or other transmitters. Low-power transmitters such as those  
used in cellphones and two-way radios normally do not interfere with  
receiver operations.  
For more information, contact your local Trimble distributor.  
12.4  
COCOM Limits  
The U.S. Department of Commerce requires that all exportable GPS  
products contain performance limitations so that they cannot be used  
in a manner that could threaten the security of the United States. The  
following limitations are implemented on the Trimble R8 receiver.  
Immediate access to satellite measurements and navigation results is  
disabled when the receiver’s velocity is computed to be greater than  
1000 knots, or its altitude is computed to be above 18,000 meters. The  
receiver continuously resets until the COCOM situation is cleared.  
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C H A P T E R  
13  
13  
Setting up the Receiver  
In this chapter:  
Q Introduction  
Q Parts of the Receiver  
Q Setup Guidelines  
Q Pole-mounted Setup  
Q Other System Components  
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Setting up the Receiver  
13.1  
Introduction  
This chapter provides general information on setup, connection, and  
cabling for the Trimble R8 receiver.  
13.2  
All operating controls on the Trimble R8 receiver are located on the  
front panel. Serial ports and connectors are located on the bottom of  
the unit.  
132.1  
Front panel  
Figure 13.1 shows a front view of the Trimble R8 receiver. The front  
panel contains the three indicator LEDs, and the power button.  
Figure 13.1 Trimble R8 receiver front panel  
The power button controls the receiver’s power on or off functions.  
The indicator LEDs show the status of power, satellite tracking, and  
radio reception. For more information, see LED Behavior, page 125.  
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132.2  
Lower housing  
Figure 13.2 shows the lower housing of the Trimble R8 receiver. The  
lower housing contains the two serial ports, one TNC radio antenna or  
GSM antenna connector (depending on the internal communication  
module ordered), the removable battery compartment and the 5/8-11  
threaded insert.  
Radio  
antenna  
connection  
Port 2  
Port 1  
Figure 13.2 Trimble R8 lower housing  
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Setting up the Receiver  
Each port or connector on the Trimble R8 receiver is marked with an  
icon to indicate its main function, as shown in Table 13.1.  
Table 13.1  
Icon  
Trimble R8 receiver ports  
Name  
Connections  
Port 1  
Port 2  
RADIO  
Device, computer, external radio, power in  
Device, computer, external radio  
Port 1 is a 7-pin 0-shell LEMO connector that supports RS-232  
comms and external power input. Port 1 has no power outputs.  
Port 2 is a DB-9 male connector that allows for full 9-pin RS-232  
comms. Port 2 does not support power in or out. For more information  
on default port settings, see Chapter 18, Default Settings. For more  
information on connector pinouts, see Chapter 19, Cables and  
Connectors.  
The TNC connector is for connecting a radio antenna to the  
Trimble R8 internal radio. A whip “rubber duck” antenna is supplied  
with the system for units with internal UHF or 900 MHz radios. This  
connector is not used if you are using an external UHF radio or GSM.  
External UHF or GSM antenna  
Depending on which module you have purchased, use this TNC  
connection for an external antenna to enhance the UHF or GSM.  
The UHF antenna is approximately 16.5 cm (6.5 inches) long, and  
round. The GSM antenna is approximately 16.5 cm (6.5 inches), and  
flatter than the UHF antenna. Make sure that you use the correct  
antenna or the signal will be degraded.  
For more information on connecting the Trimble R8, see the following  
sections in this chapter.  
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13.3  
Setup Guidelines  
Consider the following guidelines when setting up the Trimble R8  
receiver.  
Caution – You must maintain a minimum separation distance of 20 cm  
(approximately 8 in.) between yourself and the radiating GSM antenna for  
this device to satisfy the RF Exposure requirements of the FCC.  
For mobile operation, the maximum gain of the GSM antenna must not  
exceed 0 dBi.  
C
133.1  
Environmental conditions  
Although the Trimble R8 receiver has a waterproof housing,  
reasonable care should be taken to protect the unit. Avoid exposure to  
extreme environmental conditions, including:  
Water  
Heat greater than 65 °C (149 °F)  
Cold less than –40 °C (–40 °F)  
Corrosive fluids and gases  
133.2  
Sources of electrical interference  
Avoid the following sources of electrical and magnetic noise:  
Gasoline engines (spark plugs)  
Televisions and PC monitors  
Alternators and generators  
Electric motors  
Equipment with DC-to-AC converters  
Fluorescent lights  
Switching power supplies  
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Setting up the Receiver  
133.3  
General guidelines  
The following guidelines apply whenever you set up your receiver for  
operation:  
When plugging in a Lemo cable, make sure that the red dots on  
the receiver port and the cable connector line up. Never use  
force to plug cables in, as this may damage the connector pins.  
When disconnecting a Lemo cable, grasp the cable by the  
sliding collar or lanyard and pull the cable connector straight  
out of the port. Do not twist the connector or pull on the cable  
itself.  
To securely connect a TNC cable, align the cable connector  
with the receiver receptacle, then thread the cable connector  
onto the receptacle until it is snug.  
To insert the internal battery place the battery in the battery  
compartment, ensuring that the contact points are in the correct  
position to align with the contacts in the receiver. Slide the  
battery and compartment as a unit upward into the receiver until  
the battery compartment latches are locked into position.  
13.4  
Pole-Mounted Setup  
Figure 13.3 shows the pole-mounted setup for the Trimble R8  
receiver. To mount the receiver on a range pole:  
1. Thread the unit onto the range pole.  
2. Attach the controller bracket to the pole.  
3. Insert the controller into the bracket.  
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4. If using the TSC1™, connect the data-i/o cable from Port 1 of  
the receiver to a port on the TSC1. If using the Trimble ACU, or  
TSCe with Bluecap module, no cabling is required, as shown in  
Figure 13.3.  
F
F
Trimble R8 GPS Receiver  
ACU controller  
Figure 13.3 Trimble R8 receiver pole-mounted setup  
13.1  
Other System Components  
This section describes optional components that you can use with the  
Trimble R8 receiver.  
131.1  
Radios  
Radios are the most common data link for Real-Time Kinematic  
(RTK) surveying. The Trimble R8 is available with an optional  
internal radio in the 450 or 900 MHz UHF band, or with an internal  
GSM module. You can also connect an external radio to either port,  
whether the internal radio is installed or not.  
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Setting up the Receiver  
The Trimble R8 receiver supports the following Trimble base radios  
with the internal 450 MHz or 900 MHz UHF radios:  
TRIMMARK™ 3  
TRIMMARK IIe  
TRIMTALK™ 450S  
SiteNet™ 450  
SiteNet 900  
Trimble R8 internal 450 transmitter  
Internal GSM setup  
You can configure the receiver optional internal GSM Module using  
the following software:  
Trimble Survey Controller  
For more information, refer to the Trimble Survey Controller User  
Guide.  
Internal radio setup  
You can configure the receiver optional internal radio using any of the  
following software:  
GPS Configurator  
WinFlash  
Trimble Survey Controller™  
For more information, refer to the GPS Configurator Help, the  
WinFlash Help, or the Trimble Survey Controller User Guide.  
By default, the internal radio has only a few “test” frequencies  
installed at the factory. If you purchased the transmit option, the  
broadcast frequencies must be programmed at the factory. You can  
program the receive frequncies using WinFlash. For more information,  
see WinFlash Software, page 141.  
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131.2  
Cellular modems and external radios  
For a data communications link, you can use an internal or external  
radio, or an internal or external cellular modem.  
To connect an external cellular modem to a Trimble R8 receiver, you  
need the following:  
A Trimble R8 receiver.  
A cellular modem, or a cellphone that can transmit and receive  
data.  
Serial (cellphone to DB9) cable (supplied with the cellular  
modem or phone).  
Note – For more information, refer to the document Using  
Cellular and CDPD Modems for RTK, which is available from  
the Trimble website.  
Port 2 of the Trimble R8 supports full RS-232 protocol, and  
should function properly with most cellular phone cables. Some  
cellular units may require custom cabling.  
Alternatively, the Trimble R8 also supports a cable-free  
Bluetooth connection with Bluetooth enabled cell phones.  
For more information on using an external cellular modem as a data  
link, refer to the Trimble Survey Controller User Guide.  
To connect an external radio modem to a Trimble R8 receiver, you  
need the following:  
A Trimble R8 Receiver.  
An external radio capable of receiving and decoding Trimble  
data packets.  
Serial cable for either Port 1 or Port 2 of the Trimble R8, as  
supplied by the radio manufacturer.  
Radio mount for the range pole.  
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C H A P T E R  
14  
14  
General Operation  
In this chapter:  
Q Introduction  
Q Button Functions  
Q LED Behavior  
Q Starting and Stopping the Receiver  
Q Logging Data  
Q Resetting to Defaults  
Q Batteries and Power  
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14  
General Operation  
14.1  
Introduction  
Figure 14.1 shows the Trimble R8 receiver front panel controls for the  
power on/off functions, or receiver reset. The LEDs provide power,  
radio, data logging, and SV tracking status information.  
F
Power button  
Power/Data status  
Radio  
LEDs  
SV Tracking  
Figure 14.1 Controls and LEDs on front panel of the Trimble R8 receiver  
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14.2  
Button Functions  
The Trimble R8 receiver has only one button, the Power button,  
represented in this manual by p. Use p to switch the receiver on or  
off, and to perform other functions, as described in Table 14.1.  
Table 14.1  
Action  
Power button functions  
Power button  
Turn the receiver on  
Press  
Turn the receiver off  
Hold for 2 seconds  
Hold for 15 seconds  
Hold for 15 seconds  
Hold for 30 seconds  
Delete the ephemeris file  
Reset the receiver to factory defaults  
Delete application files  
Note – The term “press” indicates that you should press the button  
and release it immediately. The term “hold” indicates that you should  
press the button and hold it down until the time indicated has elapsed.  
14.3  
LED Behavior  
The three LEDs on the front panel of the receiver indicate various  
operating conditions. Generally, a lit or slowly flashing LED indicates  
normal operation, a LED that is flashing quickly indicates a condition  
that may require attention, and an unlit LED indicates that no  
operation is occurring. The following table defines each possible LED  
state.  
The term …  
Slow flash  
Fast flash  
On  
means that the LED …  
alternates on/off for 500 milliseconds.  
alternates rapidly on/off for 100 milliseconds  
is lit steady  
Off  
is unlit  
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General Operation  
143.1  
LED flash patterns  
The following table details the possible flash patterns to indicate  
various states of receiver operation.  
Receiver mode  
Power LED Radio LED  
Satellite LED  
Amber  
Green  
Green  
Receiver OFF  
Receiver ON:  
OFF  
OFF  
OFF  
Healthy power ON  
Low power Fast flash  
N/A  
N/A  
N/A  
N/A  
N/A  
N/A  
N/A  
Tracking <4 SVs  
ON  
ON  
Fast flash  
Slow flash  
N/A  
Tracking >4 SVs  
Logging data  
internally  
Flashes off  
every 3  
seconds  
Transmitting internally N/A  
Flashes off when  
transmitting  
N/A  
N/A  
Receiving valid data  
packets  
ON  
Slow flash  
No data packets  
ON  
ON  
OFF  
N/A  
ON  
Receiver in Monitor  
Slow flash  
Note – If a column shows “N/A”, that specific LED may or may not be  
on, but it is not relevant to that particular mode.  
14.4  
Starting and Stopping the Receiver  
To turn on the receiver, press p.  
To turn off the receiver, hold down p for two seconds.  
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14.5  
Logging Data  
You can log data internally or to a Trimble controller.  
145.1  
Logging internally  
The Trimble R8 receiver logs GPS data internally on 6 MB of internal  
memory.  
You can then use the Trimble Data Transfer utility to transfer logged  
data files to the office computer. The transferred files are in Trimble  
DAT (.dat) format.  
WARNING – The Trimble R8 allows for a maximum of 200 files on the  
internal memory. The filenames must be in 8.3 format, otherwise files  
copied to the internal memory may cause data corruption or loss of data  
when logging.  
C
Data is logged using the current logging settings configured in the  
receiver. Data files logged internally are named automatically.  
To begin internal logging, you must use a Trimble controller, or the  
GPS Configurator utility. The Trimble R8 receiver does not have an  
internal clock, so you can only conduct timed survey sessions if the  
receiver has a continuous power supply.  
When the internal memory is full, the receiver stops logging data, and  
the Logging/Memory LED switches off. Existing data files are not  
overwritten. You can use the Auto-delete option to override this action  
and automatically delete the oldest files when the receiver memory is  
full. However, you should use this option with caution because it can  
lead to data loss.  
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General Operation  
Table 14.2 shows approximate storage requirements for different  
logging rates. The values shown are for a one-hour logging session  
with six satellites visible.  
Table 14.2  
Storage requirements  
Logging rate  
10 Hz  
Memory required  
2,588 KB  
335 KB  
1 Hz  
5 seconds  
15 seconds  
87 KB  
37 KB  
145.2  
Logging to a Trimble controller  
When the Trimble R8 receiver is connected to a Trimble controller,  
you can log GPS data from the receiver to the controller, or to a PC  
card inserted in the controller. When you use a Trimble controller, you  
do not use the receiver’s controls. Instead, you use the controller  
functions to set logging options, specify filenames, and control when  
logging occurs.  
Data is stored in job files, which can be transferred to your office  
computer using Trimble’s Data Transfer utility.  
For more information on logging data from a receiver using a Trimble  
controller refer to the user guide for your particular controller.  
14.6  
Resetting to Defaults  
To reset the receiver to its factory default settings, hold down p for at  
least 15 seconds.  
For more information, see Default Settings, page 159.  
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14.7  
Batteries and Power  
WARNING – Do not damage the rechargeable Lithium-ion battery. A  
damaged battery can cause an explosion or fire, and can result in  
personal injury and/or property damage.  
C
To prevent injury or damage:  
– Do not use or charge the battery if it appears to be damaged. Signs of  
damage include, but are not limited to, discoloration, warping, and leaking  
battery fluid.  
– Do not expose the battery to fire, high temperature, or direct sunlight.  
– Do not immerse the battery in water.  
– Do not use or store the battery inside a vehicle during hot weather.  
– Do not drop or puncture the battery.  
– Do not open the battery or short-circuit its contacts.  
The Trimble R8 receiver can be powered by its internal battery or by  
an external power source connected to Port 1. Typically, one internal  
2.0 ampere-hour battery provides approximately 5.5 hours of  
operation during an RTK survey using the internal radio in rover mode  
and approximately 3.5 hours of operation as an RTK base (this varies  
according to temperature and wireless data rate).  
If an external power source is connected to Port 1 it is used in  
preference to the internal battery. When there is no external power  
source connected, or if the external power supply fails, the internal  
battery is used.  
WARNING – Avoid contact with the rechargeable Lithium-ion battery if it  
appears to be leaking. Battery fluid is corrosive, and contact with it can  
result in personal injury and/or property damage.  
To prevent injury or damage:  
– If the battery leaks, avoid contact with the battery fluid.  
– If battery fluid gets into your eyes, immediately rinse your eyes with  
clean water and seek medical attention. Do not rub your eyes!  
– If battery fluid gets onto your skin or clothing, immediately use clean  
water to wash off the battery fluid.  
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General Operation  
The receiver is supplied with two rechargeable Lithium-ion batteries,  
and a dual battery charger. The two batteries charge sequentially and  
take approximately four hours each to fully charge.  
147.1  
Battery charging and storage  
All battery types discharge over time when they are not being used.  
Batteries also discharge faster in colder temperatures. If a Lithium-ion  
battery is to be stored for long periods of time, make sure it is fully  
charged before storing and re-charged at least every three months.  
WARNING – Charge and use the rechargeable Lithium-ion battery only in  
C
strict accordance with the instructions. Charging or using the battery in  
unauthorized equipment can cause an explosion or fire, and can result in  
personal injury and/or equipment damage.  
To prevent injury or damage:  
– Do not charge or use the battery if it appears to be damaged or leaking.  
– Charge the Lithium-ion battery only in a Trimble product that is specified  
to charge it. Be sure to follow all instructions that are provided with the  
battery charger.  
– Discontinue charging a battery that gives off extreme heat or a burning  
odor.  
– Use the battery only in Trimble equipment that is specified to use it.  
– Use the battery only for its intended use and according to the  
instructions in the product documentation.  
Charging the Lithium-ion battery  
The rechargeable Lithium-ion battery is supplied partially charged.  
Charge the battery completely before using it for the first time. If the  
battery has been stored for longer than six months, charge it before  
use.  
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General Operation 14  
To protect the battery from deep discharge (5 volts or less), the  
Trimble R8 system is designed to switch batteries or cease drawing  
power when the battery pack discharges to 5.9 volts.  
A battery that has reached the deep discharge level cannot be  
recharged and must be replaced. The following recommendations  
provide optimal performance and extend the life of your batteries:  
Fully charge all new batteries prior to use.  
Do not allow the batteries to discharge below 5 volts.  
Keep all batteries on continuous charge when not in use.  
Batteries may be kept on charge indefinitely without damage to  
the receiver or batteries.  
Do not store batteries in the receiver or external charger unless  
power is applied.  
If you must store the batteries, fully charge them before storing  
and then recharge them at least every three months.  
Disposing of the rechargeable Lithium-ion battery  
Discharge the Lithium-ion battery before disposing of it. When  
disposing of the battery, be sure to do so in an environmentally  
sensitive manner. Adhere to any local and national regulations  
concerning battery disposal or recycling.  
147.2  
Power output  
The Trimble R8 receiver does not supply power from either of its two  
ports.  
147.3  
Firmware  
A receiver’s firmware is the program inside the receiver that controls  
receiver operations and hardware. You can upgrade the firmware for  
the Trimble R8 receiver using the WinFlash utility provided on the  
Trimble R7, Trimble R8, 5700, and 5800 GPS Receivers CD.  
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General Operation  
For more information, see WinFlash Software, page 141.  
WARNING – Upgrading the firmware deletes all application files on the  
receiver.  
C
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C H A P T E R  
15  
15  
Configuration  
In this chapter:  
Q Introduction  
Q Configuring the Receiver in Real Time  
Q Configuring the Receiver Using Application Files  
Q Application Files  
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15  
Configuration  
15.1  
Introduction  
The Trimble R8 receiver has no controls for changing settings. To  
configure the receiver, use external software such as GPS  
Configurator, WinFlash, or Trimble Survey Controller.  
There are two ways to configure the receiver. You can:  
configure the receiver in real time  
apply the settings in an application file  
This chapter provides a brief overview of each of these methods and  
describes the contents and use of application files.  
15.2  
Configuring the Receiver in Real Time  
GPS Configurator and Trimble Survey Controller support real-time  
configuration of the Trimble R8 receiver.  
When you configure the receiver in real time, you use one of these  
software applications to specify which settings you want to change.  
When you apply the changes, the receiver settings change  
immediately.  
Any changes that you apply to the receiver are reflected in the current  
application file, which is always present in the receiver. The current  
application file always records the most recent configuration, so if you  
apply further changes (either in real time or using an application file)  
the current file is updated and there is no record of the changes that  
you applied originally.  
For more information on configuring the receiver in real time, see  
Chapter 16, Software Utilities.  
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15.3  
An application file contains information for configuring a receiver. To  
configure a receiver using an application file, you need to create the  
application file, transfer it to the receiver, and then apply the file’s  
settings. GPS Configurator does this for you automatically when you  
work with configuration files.  
For more information on applying application files, see Chapter 16,  
Software Utilities.  
15.4  
Application Files  
An application file is organized into records. Each record stores  
configuration information for a particular area of receiver operation.  
Application files can include the following records:  
File Storage  
General Controls  
Serial Port Baud/Format  
Reference Position  
Logging Rate  
SV Enable/Disable  
Output Message  
Antenna  
Device Control  
Static/Kinematic  
Input Message  
An application file does not have to contain all of these records. When  
you apply an application file, any option that is not included in the  
records in the file remains at its current setting. For example, if you  
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15  
Configuration  
apply an application file that only specifies the elevation mask to use,  
all other settings remain as they were before the application file was  
applied.  
You can store up to twenty different application files in the receiver.  
You can apply an application file’s settings at the time it is transferred  
to the receiver, or at any time afterwards.  
154.1  
Special application files  
The Trimble R8 receiver has three special application files, which  
control important aspects of the receiver’s configuration.  
The default application file (Default.cfg) contains the original receiver  
configuration, and cannot be changed. This file configures the receiver  
after it is reset. You can reset the receiver by holding down p for at  
least 15 seconds, or by using the reset option in GPS Configurator.  
For more information on the default receiver settings, see Default  
Settings, page 159.  
Although you cannot change or delete the default application file, you  
can use a power up application file to override any or all of the default  
settings.  
Current application file  
The current application file (Current.cfg) reflects the current receiver  
configuration. Whenever you change the receiver’s configuration,  
either in real time or by applying an application file, the current file  
changes to match the new configuration.  
You cannot delete the current file or change it directly, but every  
change to the receiver’s current configuration is applied to the current  
file as well.  
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Configuration 15  
When you switch off the receiver then turn it on again, all the settings  
from the current application file are applied, so you do not lose any  
changes that you have made. The only exceptions are the following  
logging parameters:  
Logging rate  
Position rate  
Elevation mask  
These parameters are always reset to the factory default values  
whenever the receiver is switched off.  
Power Up application file  
The power up application file (Power_up.cfg) is used to set the  
receiver to a specific configuration any time the unit is powered up.  
You can specify that the receiver is reset to defaults before the power  
up settings are applied. This ensures that restarting the receiver always  
resets it to factory defaults prior to applying the power up application  
file.  
Alternatively, you can specify that the power up settings are applied  
immediately after the current application file’s settings have been  
applied. Restarting the receiver results in a configuration that uses  
your default settings for the options you define in the power up file,  
but the current settings for all other options.  
By default, there is no POWER_UP application file on the receiver. To  
use a power up application file, you must create and save a  
POWER_UP application file in GPS Configurator. If you save this file  
to disk, the file is called Power_up.cfg. The extension .cfg is used by  
convention to identify application files on the office computer. When  
you transfer this file to the receiver, the file is saved on the receiver as  
POWER_UP, and becomes the new power up file.  
The power up file is the only special application file that you can  
overwrite or delete from the receiver.  
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Configuration  
154.2  
Applying application files  
An application file’s settings do not affect the receiver’s configuration  
until you apply the application file. You can do this at the same time  
that you save the file. Alternatively, you can save the file on the  
computer or in the receiver, then open it later and apply its settings.  
154.3  
Storing application files  
You can store application files that you create in GPS Configurator on  
the receiver and on the computer. For example, each file can represent  
a different user sharing the same receiver, or a particular mode of  
operation or survey style. Saving application files on your computer as  
well as in your receiver is optional, but it is useful because:  
it gives you a permanent copy of the settings you have sent to a  
receiver, for audit or your own reference.  
you can use the same file to configure multiple receivers  
identically.  
you can use an existing application file as a template for  
creating other application files with similar settings.  
154.4  
Naming application files  
The application filename in the office computer and in the receiver are  
always the same. This makes it easier to recognize and keep track of  
your application files.  
When you change the name of the application file in the receiver, this  
changes the application filename on your computer. When you  
transfer an application file from the receiver and save it to the  
computer, the system renames the file to match the internal receiver  
file. However, if you use Windows Explorer, for example, to change  
the .cfg filename on the computer, this does not change the internal  
receiver filename. This means that the GPS receiver does not  
recognize the change to the filename on the computer.  
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C H A P T E R  
16  
16  
In this chapter:  
Q Introduction  
Q GPS Configurator Software  
Q WinFlash Software  
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16  
Software Utilities  
16.1  
Introduction  
This chapter provides information on the software utilities that you  
can use with the Trimble R8 receiver.  
16.2  
GPS Configurator Software  
GPS Configurator is office software that configures selected Trimble  
GPS receivers.  
GPS Configurator lets you:  
edit and save configuration files to the receiver and the  
computer  
check current receiver settings and operation  
configure receiver settings with your office computer  
162.1  
Installing GPS Configurator  
A copy of GPS Configurator is included on the Trimble R7,  
Trimble R8, 5700, and 5800 GPS Receivers CD.  
To install the software:  
1. Insert the CD into the CD drive on your computer.  
2. From the main menu select Install individual software  
packages.  
3. Select Install GPS Configurator vX.XX.  
4. Follow the onscreen instructions.  
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160.1  
Configuring the Trimble R8 receiver  
To configure a Trimble R8 receiver using GPS Configurator:  
1. Connect Port 1 or 2 on the receiver to a serial (COM) port on  
the computer and apply power.  
2. To start GPS Configurator, click  
, then select  
Programs / Trimble / GPS Configurator / GPS Configurator.  
3. Select Trimble R8 in the Device Type dialog.  
The software automatically establishes a connection with the  
receiver.  
4. Make appropriate selections for your required receiver settings.  
For more information, refer to the GPS Configurator Help.  
5. Click Apply.  
The settings in GPS Configurator are applied to the receiver.  
16.1  
WinFlash Software  
WinFlash communicates with Trimble products to perform various  
functions including:  
installing software, firmware, and option upgrades  
running diagnostics (for example, retrieving configuration  
information)  
configuring radios  
For more information, online help is also available when using  
WinFlash.  
Note – WinFlash runs on Microsoft Windows 95, 98, NT, 2000, Me, or  
XP operating systems.  
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Software Utilities  
161.1  
Installing WinFlash  
WinFlash can be installed from the Trimble R7, Trimble R8, 5700, and  
5800 GPS Receivers CD, or from the Trimble website.  
Installing WinFlash from the CD  
1. Insert the disk into the CD drive on your computer.  
2. From the main menu select Install individual software  
packages.  
3. Select Install WinFlash vX.XX with Trimble R8 drivers and  
firmware.  
4. Follow the on-screen instructions.  
160.1  
Upgrading firmware  
Your Trimble R8 receiver is supplied with the latest version of receiver  
firmware installed. If a later version becomes available, upgrade the  
firmware installed on your receiver.  
WinFlash guides you through the firmware upgrade process. The steps  
required are described below. For more information, refer to the  
WinFlash Help.  
To upgrade the Trimble R8 receiver firmware:  
1. Start WinFlash.  
The Device Configuration screen appears.  
2. From the Device type list select Trimble R8 Receiver.  
3. From the PC serial port field select the serial (COM) port on  
the computer that the receiver is connected to.  
4. Click Next.  
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The Operation Selection screen appears. The Operations list  
shows all of the supported operations for the selected device. A  
description of the selected operation is shown in the Description  
field.  
5. Select GPS software upgrade and click Next.  
The GPS Software Selection window appears. This screen  
prompts you to select the software that you want to install on  
the receiver.  
6. Select the latest version from the Available Software list and  
click Next.  
The Settings Review window appears. This screen prompts you  
to connect the receiver, suggests a connection method, and then  
lists the receiver configuration and selected operation.  
7. If all is correct, click Finish.  
Based on the selections shown above, the Software Upgrade  
window appears and shows the status of the operation (for  
example, Establishing communication with the Trimble R8. Please wait ...)  
8. Click OK.  
The Software Upgrade window appears again and states that the  
operation was completed successfully.  
9. Click Menu to select another operation, or click Exit to quit  
WinFlash.  
10. If you click Exit, another screen appears asking you to confirm  
that you want to quit WinFlash. Click OK.  
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Software Utilities  
160.1  
Adding frequencies for the 450 MHz internal radio  
If your Trimble R8 receiver has the optional internal 450 MHz radio  
installed, you must use WinFlash to add receiving frequencies to the  
default list. If you purchased the transmit option, the broadcast  
frequencies must be programmed at the factory.  
To add radio receiving frequencies:  
1. Start WinFlash.  
The Device Configuration screen appears.  
2. From the Device type list select Trimble R8 Receiver.  
3. From the PC serial port field select the serial (COM) port on  
the computer that the receiver is connected to.  
4. Click Next.  
The Operation Selection screen appears. The Operations list  
shows all of the supported operations for the selected device. A  
description of the selected operation is shown in the Description  
field.  
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5. Select Configure Radio and click Next.  
The Frequency Selection window appears:  
6. In the Wireless Format group, select the appropriate channel and  
wireless mode. The Wireless Mode must be the same for all  
radios in your network.  
7. In the Specify Frequency field, enter the frequency you require.  
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8. Click Add. The new frequency appears in the Selected  
Frequencies list.  
Note – The frequencies that you program must conform to the  
channel spacing and minimum tuning requirements for the  
radio. To view this information, click Radio Info. You may  
select either 12.5 or 25 kHz channel spacing. All radios in your  
network must use the same channel spacing.  
9. When you have configured all the frequencies you require, click  
OK.  
WinFlash updates the receiver radio frequencies and then  
restarts the receiver.  
Note – You can only configure receive frequencies. The FCC approved  
transmit frequencies must be specified and configured by Trimble.  
160.1  
Configuring the internal 900 MHz radio setup  
To configure the internal 900 MHz radio, use one of the following:  
Trimble Survey Controller running on a Trimble controller  
WinFlash (provided on the Trimble R7, Trimble R8, 5700, and  
5800 GPS Receivers CD)  
The internal radio has 40 available networks. You must choose the  
same network that is configured in the base radio you want to receive  
from.  
Trimble Survey Controller  
To configure your radio network using Trimble Survey Controller:  
1. Connect to the Trimble R8 receiver with Bluetooth (or the  
appropriate data cable if necessary).  
2. From the main menu on the controller, select Configuration.  
3. In the dialog that appears, select Survey styles, then from the  
Type field, select RTK.  
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4. Select Rover radio, then from the Type field select Trimble  
Internal.  
5. Tap the ! softkey.  
6. Once connected, in the Network number field enter the number  
of the network set on your base radio.  
Note – The Base Radio Mode field is not used here.  
7. Tap the E softkey to complete configuration.  
WinFlash  
To configure the radio network using WinFlash:  
1. Connect the data/power cable to Port 1 on the receiver.  
2. Connect the female DE-9 connector on the other end of the  
data/power cable to a serial (COM) port on the computer.  
3. Start WinFlash. The Device Configuration dialog appears.  
4. From the Device type list, select Trimble R8 Receiver.  
5. From the PC serial port field, select the serial port on the  
computer that the receiver is connected to and click Next.  
6. From the Operation selection dialog, select Configure radio and  
click Next.  
7. Confirm that your current settings are correct and click Finish.  
The Configure 900MHz radio dialog appears.  
8. In the Network number field, select the same network that is set  
on your base radio.  
9. In the Country setting field, select one of the following  
(according to how your base radio was shipped):  
Your country (if available). This sets the radio to the a  
specific frequency range being transmitted by the base  
radio.  
A single frequency. This limits the frequencies used to  
those authorized in your particular country.  
10. Click OK.  
WinFlash updates the radio settings and then restarts the receiver.  
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Software Utilities  
160.1  
Configuring the internal transceiver  
Use the WinFlash Internal Transceiver Configuration dialog to  
configure the Trimble R8 internal transceiver.  
Tip – To view a list of all radio information, including the current  
configuration, click Radio Info.  
B
1. Select the Current Channel, which determines the radio  
operating frequency.  
2. Select the Wireless Mode, which determines the over-the-air  
communications parameters. The following example shows a  
rover setup:  
To reduce battery consumption on your base receiver, set the  
wireless mode as high as possible. For example, 9600 bps  
consumes half the power of 4800 bps for the same data format  
and time of operation.  
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Note – All radios in the network must be configured with the  
same wireless setting.  
3. Select the appropriate operating mode, depending on how you  
intend to use the receiver, for example, Base with No Repeaters:  
4. Select one of the following channel sharing configurations (base  
modes only; not available for rover):  
Off. The carrier detect mode is off. The unit will ignore  
other transmissions on your frequency and continue to  
transmit data.  
Note – It may be illegal in your country of use to set  
channel sharing to Off. You may be subject to penalties or  
fines based upon the specific licensing requirements for  
your country of use. Please consult your radio license  
documentation or licensing agency for operational  
guidelines.  
Avoid Weak Signals.The carrier detect mode is on. The  
radio will cease transmitting if it detects another radio  
transmission on its frequency. It will resume transmission  
when the channel is free of radio traffic.  
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Avoid Strong Signals. The carrier detect mode is on, but  
the radio will stop transmitting only when there is a strong  
signal present (receive level greater than 90 dBm).  
5. If you are operating in Base mode, select the Enable Station ID  
check box and then enter your call sign in the Call Sign field.  
This FCC requirement is for U.S. licensed users. It sets your  
radio to transmit your call sign in Morse code every 15 minutes.  
6. To update the configuration, click OK.  
In the Status dialog that appears, select an option to return to the  
main menu or to exit WinFlash.  
Tip – You can print or save the radio configuration information for future  
reference. If required, you can fax or e-mail the file to Trimble Support to  
aid in troubleshooting radio problems.  
B
Updating the frequency list  
You can program the internal transceiver modem with a list of up to 20  
frequencies, which are stored in non-volatile memory. This list is  
pre-configured based on the frequencies that you requested when you  
ordered the unit. Government regulations stipulate that only  
manufacturers or authorized dealers can create this frequency list and  
that all frequencies programmed into a unit must comply with the host  
country regulations. If you need to add, delete, or replace frequencies,  
contact your Trimble dealer, and provide the radio modem serial  
number and an updated list of the frequencies you require. Once you  
receive the frequency file, you can upgrade the radio using WinFlash.  
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C H A P T E R  
17  
17  
Specifications  
In this chapter:  
Q Introduction  
Q Physical Specifications  
Q Positioning Specifications  
Q Technical Specifications  
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17  
Specifications  
17.1  
Introduction  
This chapter details the specifications of the Trimble R8 receiver.  
17.2  
Physical Specifications  
Table 17.1 lists physical specifications for the Trimble R8 receiver.  
Table 17.1  
Physical specifications  
Specification  
Feature  
Size  
19cm (7.5") wide x 10cm (3.9") deep  
including connectors  
Weight: with internal battery  
and radio  
1.31 kg (2.13 lbs)  
Operating times on internal  
battery  
450 MHz receive/transmit: 3.5 hours (varies  
with temperature and wireless data rate)  
GSM: 3.8 hours (varies with temperature)  
Battery life  
(at 20 °C)  
Approximately 5.5 hours for one 2.0 ah  
Lithium-ion battery  
External Power input  
11–28 V DC  
a
Operating temperature  
–40 °C to +65 °C (–40 °F to +149 °F)  
–40 °C to +70 °C (–40 °F to +157 °F)  
100% condensing, unit fully sealed  
Dust-proof, shock- and vibration-resistant  
Storage temperature  
Humidity  
Casing  
aReceiver will operate normally to 40 °C. Bluetooth module, GSM module, and internal  
batteries are rated to –20 °C.  
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Specifications 17  
17.3  
Positioning Specifications  
Table 17.2 lists positioning specifications for the Trimble R8 receiver.  
Table 17.2  
Positioning specifications  
Positioning  
Mode  
Horizontal accuracy Vertical accuracy  
(RMS)  
(RMS)  
RTK (OTF)  
Synchronized  
Low Latency  
1 cm + 1 ppm  
(× baseline length)  
2 cm + 1 ppm  
(× baseline length)  
2 cm + 2 ppm  
(× baseline length)  
3 cm + 2 ppm  
(× baseline length)  
a
a
L1 C/A Code  
Phase  
Synchronized/  
Low Latency  
.25m + 1ppm RMS  
.50m + 1ppm RMS  
Static/  
N/A  
5 mm + 0.5 ppm  
5 mm + 1 ppm  
FastStatic  
(× baseline length)  
(× baseline length)  
b
b
WAAS  
N/A  
Less than 5 m  
Less than 5 m  
aDepends on radio link latency.  
b3D RMS values depend on WAAS system performance.  
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17  
Specifications  
17.4  
Technical Specifications  
Table 17.3 lists technical specifications for the Trimble R8 receiver.  
Table 17.3  
Technical specifications  
Specification  
Feature  
Tracking  
24 Channels L1 C/A Code, L2C, L1/L2 Full Cycle  
Carrier, WAAS/EGNOS support  
Fully operational during P-code encryption  
WAAS satellite tracking  
Signal processing  
Maxwell V architecture  
Very low-noise C/A code processing  
Multipath suppression  
Start-up  
Cold start: < 60 seconds from power on  
Warm start: < 30 seconds with recent ephemeris  
Initialization  
Automatic while moving or static  
Minimum  
initialization time  
10 sec + 0.5 × baseline length (km)  
Communications  
Two RS-232 serial ports (Port 1, Port 2,)  
Port 1: Baud Rates up to 115,200 bps  
Port 2: Baud Rates up to 115,200 bps  
RTS/CTS flow control negotiation supported on Port 2  
only  
Bluetooth communications with Trimble ACU or TSCe  
with Bluecap module  
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Specifications 17  
Table 17.3  
Technical specifications (continued)  
Feature  
Specification  
Transmit radio  
Transmit power: 0.5 watts  
Wireless data rate: 4800, 8000, 9600, 16000, and  
19200  
Frequency bands: 410-430MHz, 430-450MHz,  
450-470MHz  
Channel Spacing: 12.5kHz and 25kHz  
Number of channels: Total of 20 factory  
pre-programmed transmit frequencies or user  
configured receive frequencies  
RF modulation format: Gaussian Minimum Shift Keying  
(GMSK) at 4800, 8000, 9600, 16000, and 19200 bps  
Range: Optimal 10 km (line of sight); Typical: 3–5 km  
(varies with terrain and operational conditions)  
Battery life: Up to 3.5 hours (varies with temperature  
and wireless data rate)  
GSM module  
Certification: Class B Part 15, 22, 24  
FCC certification: 850/1900  
Class 10 GSM module  
CE Mark approval  
C-tick approval  
GSM: type approvals are country specific. For more  
information, contact your Trimble representative.  
Bluetooth  
Type approvals are country specific. For more  
information, contact your Trimble representative.  
Configuration  
Output formats  
Through user-definable application files or GPS  
Configurator  
NMEA-0183: AVR; GGA; GSA; GST; GSV;  
PTNL,GGK; PTNL,GGK_SYNC; HDT; PTNL,PJK;  
PTNL,PJT; ROT; PTNL,VGK; VHD; VTG; ZDA  
GSOF (Trimble Binary Streamed Output)  
RT17  
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17  
Specifications  
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C H A P T E R  
18  
18  
Default Settings  
In this chapter:  
Q Introduction  
Q Default Settings  
Q Resetting to Factory Defaults  
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18  
Default Settings  
18.1  
Introduction  
All Trimble R8 receiver settings are stored in application files. The  
default application file, DEFAULTS is stored permanently in the  
receiver, and contains the factory default settings for the receiver.  
Whenever the receiver is reset to its factory defaults, the current  
settings (stored in the current application file, CURRENT) are reset to  
the values in the default application file.  
You cannot modify the default application file. However, if there is a  
power up application file (POWER_UP) in the receiver, the settings in  
this file can be applied immediately after the default application file,  
overriding the factory defaults.  
For more information about application files, see Application Files,  
page 135.  
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Default Settings 18  
18.2  
Default Settings  
Table 18.1 defines the default settings for the Trimble R8 receiver, as  
defined in the default application file.  
Table 18.1  
Default settings  
Function  
Factory default  
All SVs enabled  
13°  
SV Enable  
General Controls:  
Elevation mask  
PDOP mask  
RTK positioning mode  
Motion  
7
Low Latency  
Kinematic  
115,200  
8-None-1  
None  
Serial Port 1:  
Serial Port 2:  
Input Setup:  
Baud rate  
Format  
Flow control  
Baud rate  
115,200  
8-None-1  
None  
Format  
Flow control  
Station  
Any  
NMEA/ASCII (all messages)  
Streamed output  
All Ports Off  
All Types Off  
Offset = 00  
RT17/Binary  
All Ports Off  
Reference position:  
Antenna:  
Latitude  
0°  
Longitude  
0°  
Altitude  
0.00 m HAE  
Trimble R8/5800 Internal  
0.00 m  
Type  
Height (true vertical)  
Group  
All  
Measurement method  
Bottom of mount  
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18  
Default Settings  
18.3  
Resetting to Factory Defaults  
To reset the Trimble R8 receiver to its factory defaults, do one of the  
following:  
Press and hold down p on the receiver for 15 seconds.  
In GPS Configurator, select Connect to Receiver and then click  
Reset receiver in the General tab.  
183.1  
Default behavior  
The factory defaults specified above are applied whenever you start  
the receiver. If a Power Up file is present in the receiver, its settings  
are applied immediately after the default settings, so you can use a  
Power Up file to define your own set of defaults.  
183.2  
Power up settings  
When you turn the receiver off, any changes that you have made to  
logging settings are lost and these settings are returned to the factory  
defaults. Other settings remain as defined in the Current file. The next  
time you turn on the receiver, the receiver checks for a Power Up file  
and, if one is present, applies the settings in this file.  
When you use p to turn the receiver  
off then on again and …  
then logging  
settings are …  
and all other settings  
are …  
you changed the receiver settings by  
applying an application file  
the factory defaults  
the factory defaults  
the last settings used  
you changed the receiver settings using  
configuration software  
the last settings used  
there is a Power Up application file in the  
receiver  
the factory defaults, or  
those in the Power Up  
file  
the last settings used,  
or those in the Power  
Up file  
a
aA factory default setting is used only if the setting is not defined in the Power Up file.  
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C H A P T E R  
19  
19  
Cables and Connectors  
In this chapter:  
Q Introduction  
Q Port 1 and 2 Connectors  
Q Power/serial Data Cable  
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19  
Cables and Connectors  
19.1  
Introduction  
This chapter provides pinout information for the Trimble R8 receiver  
standard and optional cables. This information can be used to prepare  
special cables for connecting the receiver to devices and instruments  
not supported by the standard and optional cables.  
19.2  
Port 1 and 2 Connectors  
Figure 19.1 shows the location of the Trimble R8 serial ports.  
Port 1  
Port 2  
2
BARCODE S/N LABEL  
Figure 19.1 Trimble R8 serial ports  
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Cables and Connectors 19  
Figure 19.2 gives pinout requirements for the connector labeled  
Port 1.  
6
1
7
5
2
3
4
Figure 19.2 Port 1 connector  
Figure 19.3 gives pinout requirements for the connector labeled  
Port 2.  
Pins 9 8 7 6  
Pins 5 4 3 2 1  
Figure 19.3 Port 2 connector  
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19  
Cables and Connectors  
Table 19.1 describes the pinout functionality.  
Table 19.1  
Pin  
Trimble R8 port pinouts  
Pinout function  
Port 1 - 7-pin Lemo  
Port 2 - DB-9  
DCD  
1
2
3
4
5
6
7
8
9
Signal ground  
- Power ground  
TXD  
RXD  
TXD  
N/C  
DTR  
N/C  
Signal ground  
DSR  
+ Power in  
TRXD  
RTS  
N/A  
CTS  
N/A  
Ring indicator  
19.3  
Power/Serial Data Cables  
Note – Table 19.2 gives pinout information for the data-I/O cable,  
(PN 18532) which is supplied with the Trimble R8 receiver  
Note – Table 19.2 assumes that the cable is attached to the connector  
labeled Port 2.  
Table 19.2  
Data-I/O cable pinouts  
DB-9 Female  
9 Pin  
DB-9 Female  
9 pin  
Pin  
1-6  
2
Function  
Pin  
4
Function  
DCD5_232  
RX5_232  
TX5_232  
DTR5_232  
TX5_232  
3
3
2
RX5_232  
DCD5_232  
4
DTR5_232  
1-6  
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Cables and Connectors 19  
Data-I/O cable pinouts (continued)  
Table 19.2  
DB-9 Female  
9 Pin  
DB-9 Female  
9 pin  
Pin  
5
Function  
Pin  
5
Function  
GND  
GND  
7
RTS5_232  
8
CTS5_232  
RTS5_232  
8
CTS5_232  
7
9
no connection RI5_232  
9
This data cable may be used for firmware upgrades and other  
computer functions with the Trimble R8. Power must be supplied to  
the receiver via Port 1, or from the internal battery.  
Note – Table 19.3 gives pinout information for the power/serial data  
cable, (PN 32345) which is optional for use with the Trimble R8  
receiver. This cable can be used for firmware upgrades through Port 1,  
while also supplying external power.  
Note – Table 19.3 assumes that the cable is attached to the connector  
labeled Port 1.  
Table 19.3  
Power/serial data cable pinouts  
Lemo 0-shell  
connector  
Direction DE9-F connector  
Power lead  
2 Cond  
7 Pin  
7 Cond  
Pin Function  
Pin Color  
Function  
Signal ground  
Color  
Function  
1
2
3
4
5
6
7
GND  
5
Brown  
GND  
Black  
V-OUT  
TX3_232  
RTS/TXD  
CTS/RXD  
PWR_IN  
RX3_232  
2
8
7
Orange TXD  
Blue  
RTS  
CTS  
Green  
Red  
Power IN (+)  
3
Yellow  
TXD  
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Cables and Connectors  
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S E C T I O N  
III  
I
APPENDIXES  
TRIMBLE R7 / TRIMBLE R8  
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A P P E N D I X  
A
NMEA-0183 Output  
A
In this appendix:  
Q Introduction  
Q NMEA-0183 outputs  
Q Common message elements  
Q NMEA messages  
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A
NMEA-0183 Output  
A.1  
Introduction  
This appendix describes the formats of the subset of NMEA-0183  
messages that are available for output by the receivers. For a copy of  
the NMEA-0183 Standard, visit the National Marine Electronics  
Association website at www.nmea.org.  
A.2  
NMEA-0183 Outputs  
When NMEA-0183 output is enabled, a subset of NMEA-0183  
messages can be output to external instruments and equipment  
connected to the Trimble R7 serial ports. These NMEA-0183  
messages let external devices use selected data collected or computed  
by the GPS receiver.  
All messages conform to the NMEA-0183 Version 3.01 format. All  
begin with $ and end with a carriage return and a line feed. Data fields  
follow comma (,) delimiters and are variable in length. Null fields still  
follow comma (,) delimiters but contain no information.  
An asterisk (*) delimiter and checksum value follow the last field of  
data contained in an NMEA-0183 message. The checksum is the 8-bit  
exclusive OR of all characters in the message, including the commas  
between fields, but not including the $ and asterisk delimiters. The  
hexadecimal result is converted to two ASCII characters (0–9, A–F).  
The most significant character appears first.  
Table A.1 summarizes the set of NMEA messages supported by the  
Trimble R7 receiver, and shows the page where detailed information  
about each message can be found.  
Table A.1  
NMEA message summary  
Function  
Message  
Page  
AVR  
Time, yaw, tilt, range, mode, PDOP, and  
174  
number of SVs for Moving Baseline RTK  
Time, position, and fix related data  
GNSS DOP and active satellites  
GGA  
GSA  
175  
176  
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NMEA-0183 Output  
NMEA message summary (continued)  
A
Table A.1  
Message  
GST  
Function  
Page  
177  
Position error statistics  
GSV  
Number of SVs in view, PRN, elevation,  
azimuth, and SNR  
178  
HDT  
Heading from True North  
178  
179  
PTNL,GGK  
Time, position, position type and DOP  
values  
PTNL,GGK_SYNC  
Time, synchronized position, position type  
and DOP values  
180  
PTNL,PJK  
PTNL,PJT  
PTNL,VGK  
PTNL,VHD  
ROT  
Local coordinate position output  
Projection type  
182  
183  
183  
184  
185  
186  
Time, locator vector, type and DOP values  
Heading Information  
Rate of turn  
VTG  
Actual track made good and speed over  
ground  
ZDA  
UTC day, month, and year, and local time  
zone offset  
187  
To enable or disable the output of individual NMEA messages, do one  
of the following:  
create an application file in GPS Configurator that contains  
NMEA output settings and then send the file to the receiver.  
add NMEA outputs in the Serial outputs tab of GPS  
Configurator and then apply the settings.  
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A
NMEA-0183 Output  
A.3  
Common Message Elements  
Each message contains:  
A message ID consisting of $GP followed by the message type.  
For example, the message ID of the GGA message is $GPGGA.  
A comma  
A number of fields that depend on message type, separated by  
commas  
An asterisk  
A checksum value  
Below is an example of a simple message with a message ID  
($GPGGA), followed by 13 fields and checksum value:  
$GPGGA,172814.0,3723.46587704,N,12202.26957864,W,2,6,  
1.2,18.893,M,-25.669,M,2.0,0031*4F  
A.3.1  
Message values  
The following values can be found in NMEA messages that the  
receiver generates.  
Latitude and Longitude  
Latitude is represented as ddmm.mmmm and longitude is represented  
as dddmm.mmmm, where:  
dd or ddd is degrees  
mm.mmmm is minutes and decimal fractions of minutes  
Direction  
Direction (north, south, east, or west) is represented by a single  
character: N, S, E, or W.  
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NMEA-0183 Output  
A
Time  
Time values are presented in Universal Time Coordinated (UTC) and  
are represented as hhmmss.cc, where:  
hh is hours, from 00 to 23  
mm is minutes  
ss is seconds  
cc is hundredths of seconds  
A.4  
NMEA Messages  
When NMEA-0183 output is enabled, the following messages can be  
generated.  
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A
NMEA-0183 Output  
AVR  
Time, Yaw, Tilt, Range for Moving Baseline RTK  
The AVR message string is shown below, and Table A.2 describes the  
message fields.  
$PTNL,AVR,181059.6,+149.4688,Yaw,+0.0134,Tilt,,,60.191,3,  
2.5,6*00  
Table A.2  
AVR message fields  
Meaning  
Field  
1
2
3
4
5
6
7
8
9
UTC of vector fix  
Yaw angle in degrees  
Yaw  
Tilt angle in degrees  
Tilt  
Reserved  
Reserved  
Range in meters  
Quality indicator:  
0:  
1:  
2:  
3:  
4:  
Fix not available or invalid  
Autonomous GPS fix  
Differential carrier phase solution RTK (Float)  
Differential carrier phase solution RTK (Fix)  
Differential code-based solution, DGPS  
10  
11  
PDOP  
Number of satellites used in solution  
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NMEA-0183 Output  
A
GGA  
Time, Position, and Fix Related Data  
An example of the GGA message string is shown below. Table A.3  
describes the message fields.  
$GPGGA,172814.0,3723.46587704,N,12202.26957864,W,  
2,6,1.2,18.893,M,-25.669,M,2.0,0031*4F  
Table A.3  
GGA message fields  
Field  
Meaning  
1
2
3
UTC of position fix  
Latitude  
Direction of latitude:  
N: North  
S: South  
4
5
Longitude  
Direction of longitude:  
E: East  
W: West  
6
GPS Quality indicator:  
0: Fix not valid  
1: GPS fix  
2: Differential GPS fix  
4: Real Time Kinematic, fixed integers  
5: Real Time Kinematic, float integers  
7
Number of SVs in use, range from 00 to 12  
HDOP  
8
9
Orthometric height (MSL reference)  
M: unit of measure for height is meters  
Geoid separation  
10  
11  
12  
M: geoid separation is measured in meters  
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A
NMEA-0183 Output  
Table A.3  
GGA message fields (continued)  
Meaning  
Field  
13  
Age of differential GPS data record, Type 1 or Type 9. Null field  
when DGPS is not used.  
14  
Reference station ID, ranging from 0000 to 1023. A null field when  
any reference station ID is selected and no corrections are  
received.  
GSA GNSS DOP and active satellites  
An example of the GSA message string is shown below. Table A.4  
describes the message fields.  
$GPGSA,<1>,<2>,<3>,<3>,,,,,<3>,<3>,<3>,<4>,<5>,  
<6>*<7><CR><LF>  
Table A.4  
GSA message fields  
Field  
Meaning  
1
Mode 1, M = manual, A = automatic  
2
3
Mode 2, Fix type, 1 = not available, 2 = 2D, 3 = 3D  
PRN number, 01 to 32, of satellite used in solution, up to 12  
transmitted  
4
5
6
7
PDOP-Position dilution of precision, 0.5 to 99.9  
HDOP-Horizontal dilution of precision, 0.5 to 99.9  
VDOP-Vertical dilution of precision, 0.5 to 99.9  
Checksum  
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NMEA-0183 Output  
A
GST  
Position Error Statistics  
An example of the GST message string is shown below. Table A.5  
describes the message fields.  
$GPGST,172814.0,0.006,0.023,0.020,273.6,  
0.023,0.020,0.031*6A  
Table A.5  
GST message fields  
Field  
Meaning  
1
2
UTC of position fix  
RMS value of the pseudorange residuals (includes carrier phase  
residuals during periods of RTK(float) and RTK(fixed) processing)  
3
4
5
6
7
8
Error ellipse semi-major axis 1 sigma error, in meters  
Error ellipse semi-minor axis 1 sigma error, in meters  
Error ellipse orientation, degrees from true north  
Latitude 1 sigma error, in meters  
Longitude 1 sigma error, in meters  
Height 1 sigma error, in meters  
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A
NMEA-0183 Output  
GSV  
Satellite Information  
The GSV message string identifies the number of SVs in view, the  
PRN numbers, elevations, azimuths, and SNR values. An example of  
the GSV message string is shown below. Table A.6 describes the  
message fields.  
$GPGSV,4,1,13,02,02,213,,03,-3,000,,  
11,00,121,,14,13,172,05*67  
Table A.6  
GSV message fields  
Field  
Meaning  
1
Total number of messages of this type in this cycle  
Message number  
2
3
Total number of SVs visible  
4
SV PRN number  
5
Elevation, in degrees, 90° maximum  
Azimuth, degrees from True North, 000° to 359°  
SNR, 0099 dB (null when not tracking)  
Information about second SV, same format as fields 47  
Information about third SV, same format as fields 47  
Information about fourth SV, same format as fields 47  
6
7
811  
1215  
1619  
HDT  
Heading from True North  
The HDT string is shown below, and Table A.7 describes the message  
fields.  
$GPHDT,123.456,T*00  
Table A.7  
Heading from true north fields  
Field  
Meaning  
1
2
Heading in degrees  
T: Indicates heading relative to True North  
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NMEA-0183 Output  
A
PTNL,GGK  
Time, Position, Position Type, DOP  
An example of the PTNL,GGK message string is shown below.  
Table A.8 describes the message fields.  
$PTNL,GGK,172814.00,071296,  
3723.46587704,N,12202.26957864,W,  
3,06,1.7,EHT-6.777,M*48  
Table A.8  
PTNL,GGK message fields  
Field  
Meaning  
1
2
3
4
UTC of position fix  
Date  
Latitude  
Direction of latitude:  
N: North  
S: South  
5
6
Longitude  
Direction of Longitude:  
E: East  
W: West  
7
GPS Quality indicator:  
0: Fix not available or invalid  
1: Autonomous GPS fix  
2: Differential, floating carrier phase integer-based solution,  
RTK(float)  
3: Differential, fixed carrier phase integer-based solution,  
RTK(fixed)  
4: Differential, code phase only solution (DGPS)  
Number of satellites in fix  
8
9
DOP of fix  
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A
NMEA-0183 Output  
Table A.8  
PTNL,GGK message fields (continued)  
Meaning  
Field  
10  
Ellipsoidal height of fix  
11  
M: ellipsoidal height is measured in meters  
Note – The PTNL,GGK message is longer than the NMEA-0183  
standard of 80 characters.  
PTNL,GGK_SYNC  
Time, Synchronized Position, Position Type, DOP  
The PTNL,GGK_SYNC message has the same format as the  
PTNL,GGK message, but outputs Synchronized 1 Hz positions even  
in Low Latency mode. An example of the PTNL,GGK_SYNC  
message string is shown below. Table A.9 describes the message  
fields.  
$PTNL,GGK_SYNC,172814.00,071296,  
3723.46587704,N,12202.26957864,W,  
3,06,1.7,EHT-6.777,M*48  
Table A.9  
PTNL,GGK_SYNC message fields  
Field  
Meaning  
1
2
3
4
UTC of position fix  
Date  
Latitude  
Direction of latitude:  
N: North  
S: South  
5
Longitude  
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NMEA-0183 Output  
PTNL,GGK_SYNC message fields (continued)  
Meaning  
A
Table A.9  
Field  
6
Direction of Longitude:  
E: East  
W: West  
7
GPS Quality indicator:  
0: Fix not available or invalid  
1: Autonomous GPS fix  
2: Differential, floating carrier phase integer-based solution,  
RTK(float)  
3: Differential, fixed carrier phase integer-based solution,  
RTK(fixed)  
4: Differential, code phase only solution (DGPS)  
Number of satellites in fix  
8
9
DOP of fix  
10  
11  
Ellipsoidal height of fix  
M: ellipsoidal height is measured in meters  
Note – The PTNL,GGK_SYNC message is longer than the  
NMEA-0183 standard of 80 characters.  
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A
PTNL,PJK  
Local Coordinate Position Output  
An example of the PTNL,PJK message string is shown below.  
Table A.10 describes the message fields.  
$PTNL,PJK,010717.00,081796,  
+732646.511,N,+1731051.091,E,  
1,05,2.7,EHT-28.345,M*7C  
Table A.10 PTNL,PJK message fields  
Field  
Meaning  
1
2
3
4
5
6
7
UTC of position fix  
Date  
Northing, in meters  
Direction of Northing will always be N (North)  
Easting, in meters  
Direction of Easting will always be E (East)  
GPS Quality indicator:  
0: Fix not available or invalid  
1: Autonomous GPS fix  
2: Differential, floating carrier phase integer-based solution,  
RTK (float)  
3: Differential, fixed carrier integer-based solution, RTK (fixed)  
4: Differential, code phase only solution (DGPS)  
8
Number of satellites in fix  
DOP of fix  
9
10  
11  
Ellipsoidal height of fix  
M: ellipsoidal height is measured in meters  
Note – The PTNL,PJK message is longer than the NMEA-0183  
standard of 80 characters.  
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A
PTNL,PJT  
Projection Type  
An example of the PTNL,PJT message string is shown below.  
Table A.11 describes the message fields.  
$PTNL,PJT,NAD83(Conus),California Zone 4 0404,*51  
Table A.11 PTNL,PJT message fields  
Field  
Meaning  
1
Coordinate system name (can include multiple words)  
Projection name (can include multiple coordinates)  
PTNL,VGK  
Vector Information  
An example of the PTNL,VGK message string is shown below.  
Table A.12 describes the message fields.  
$PTNL,VGK,160159.00,010997,-0000.161,  
00009.985,-0000.002,3,07,1,4,M*0B  
Table A.12 PTNL,VGK message fields  
Field  
Meaning  
1
2
3
4
5
UTC of vector in hhmmss.ss format  
Date in mmddyy format  
East component of vector, in meters  
North component of vector, in meters  
Up component of vector, in meters  
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A
NMEA-0183 Output  
Table A.12 PTNL,VGK message fields (continued)  
Field  
Meaning  
6
GPS quality indicator:  
0: Fix not available or invalid  
1: Autonomous GPS fix  
2: Differential carrier phase solution RTK(float)  
3: Differential carrier phase solution RTK(fix)  
4: Differential code-based solution, DGPS  
7
8
Number of satellites if fix solution  
DOP of fix  
M: Vector components are in meters  
PTNL,VHD  
Heading Information  
An example of the PTNL,VHD message string is shown below.  
Table A.13 describes the message fields.  
$PTNL,VHD,030556.00,093098,187.718,  
-22.138,-76.929,-5.015,0.033,0.006,  
3,07,2.4,M*22  
Table A.13 PTNL,VHD message fields  
Field  
Meaning  
1
2
3
4
5
6
7
UTC of position, in hhmmss.ss,ddmmyy format  
Date in mmddyy format  
Azimuth  
Azimuth/Time  
Vertical Angle  
Vertical/Time  
Range  
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NMEA-0183 Output  
Table A.13 PTNL,VHD message fields (continued)  
A
Field  
Meaning  
8
9
Range/Time  
Quality indicator:  
0: Fix not available or invalid  
1: Autonomous GPS fix  
2: Differential carrier phase solution RTK(float)  
3: Differential carrier phase solution RTK(fix)  
4: Differential code-based solution, DGPS  
10  
11  
Number of satellites used in solution  
PDOP  
ROT  
Rate of Turn  
The ROT string is shown below, and Table A.14 describes the message  
fields.  
$GPROT,35.6,A*4E  
Table A.14 ROT message fields  
Field  
Meaning  
1
Rate of turn, degrees/minutes, "–" indicates bow turns to  
port  
2
A: Valid data  
V: Invalid data  
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A
NMEA-0183 Output  
VTG  
Actual Track Made Good Over and Speed Over Ground  
An example of the VTG message string is shown below. Table A.15  
describes the message fields.  
$GPVTG,,T,,M,0.00,N,0.00,K*4E  
Table A.15 VTG message fields  
Field  
Meaning  
1
2
3
4
5
6
7
8
Track made good (degrees true)  
T: track made good is relative to true north  
Track made good (degrees magnetic)  
M: track made good is relative to magnetic north  
Speed, in knots  
N: speed is measured in knots  
Speed over ground in kilometers/hour (kph)  
K: speed over ground is measured in kph  
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NMEA-0183 Output  
A
ZDA  
UTC Day, Month, And Year, and Local Time Zone Offset  
An example of the ZDA message string is shown below. Table A.16  
describes the message fields.  
$GPZDA,172809,12,07,1996,00,00*45  
Table A.16 ZDA message fields  
Field  
Meaning  
1
2
3
4
5
6
UTC  
Day, ranging between 01 and 31  
Month, ranging between 01 and 12  
Year  
Local time zone offset from GMT, ranging from 00 to 13 hours  
Local time zone offset from GMT, ranging from 00 to 59 minutes  
Fields 5 and 6 together yield the total offset. For example, if field 5 is  
–5 and field 6 is +15, local time is 5 hours and 15 minutes earlier than  
GMT.  
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A
NMEA-0183 Output  
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A P P E N D I X  
B
B
In this appendix:  
Q RTCM Output  
Q Message Scheduling  
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B
RTCM Output  
0.1  
RTCM Output  
Table B.1 shows the messages that are generated when you select a  
specific RTCM version. The messages in the table are in the same  
order as they appear in GPS Configurator. For the details of the  
contents of individual messages, refer to the RTCM documentation.  
Table B.1  
RTCM output  
Message  
Selection  
Version 2  
1
1
1
1
1
3
3
3
3
22  
59  
USCG 9-3  
9-3  
RTCM/RTK 2.2+2.3  
RTK Only 2.2+2.3  
RTCM/RTK 2.3  
RTK Only 2.3  
RTCM/RTK 2.2  
RTK Only 2.2  
RTCM/RTK 2.1  
RTK Only 2.1  
RTCM/RTK 3.00  
18  
18  
18  
18  
18  
18  
18  
18  
19  
19  
19  
19  
19  
19  
19  
19  
22  
22  
23  
23  
23  
24  
24  
24  
59  
59  
22  
3
3
3
3
22  
59  
22  
59  
22  
59  
22  
59  
1004  
1006  
1008  
1013  
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RTCM Output  
B
0.2  
Message Scheduling  
Table B.2 describes the frequency at which messages are generated  
when they are enabled in a base receiver.  
Table B.2  
Message scheduling  
Type  
1
Frequency  
Every second  
3
The 10th second after the first measurement, then every 10 seconds after that  
Every second  
9-3  
18  
19  
22  
23  
24  
Every second  
Every second  
The 5th second after the first measurement, then every 10 seconds after that  
The 4th second after the first measurement, then every 10 seconds after that  
The 4th second after the first measurement, then every 10 seconds after that  
59-sub, 13 The 5th second after the first measurement, then every 10 seconds after that  
1004  
1006  
1008  
1013  
Every second  
Every 10 seconds  
Every 10 seconds  
Every 300 seconds  
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B
RTCM Output  
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A P P E N D I X  
C
Troubleshooting  
C
In this appendix:  
Q LED Conditions  
Q Receiver Issues  
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C
Troubleshooting  
An LED that is flashing quickly indicates a condition that may require  
attention, and an unlit LED indicates that no operation is occurring.  
Table C.1 describes some LED conditions, possible causes, and how  
to solve them.  
Table C.1  
Condition  
LED conditions  
Possible cause  
Solution  
The SV Tracking LED is The receiver is in Monitor  
lit solidly and the mode, ready for new  
Logging/Memory LED firmware to be loaded or new  
Power the receiver off or on.  
Load the latest version of the  
firmware, which you can download  
from www.trimble.com/support.html  
is flashing slowly.  
options to be added.  
The SV Tracking LED is The receiver is tracking fewer Wait until the SV Tracking LED is  
not flashing. than four satellites. flashing slowly.  
The radio antenna cable and Make sure that the GPS antenna  
GPS antenna cable are  
mixed up.  
cable (with the yellow over-mould) is  
connected between the yellow TNC  
connector marked GPS and the GPS  
antenna.  
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Troubleshooting  
C
Table C.2 describes some possible receiver issues, possible causes,  
and how to solve them.  
Table C.2  
Issue  
Receiver issues  
Possible cause  
Solution  
The receiver does not External power too low.  
power up.  
Check the charge on the external  
battery, and check the fuse if  
applicable. Replace the battery if  
necessary.  
Internal power too low.  
Check the charge on the internal  
batteries and replace if necessary.  
Ensure battery contacts are clean.  
External power not properly  
connected.  
Check that the Lemo connection is  
seated properly.  
Check for broken or bent pins in the  
connector.  
Faulty power cable.  
Try a different cable.  
Check pinouts with multimeter to  
ensure internal wiring is intact.  
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C
Troubleshooting  
Table C.2  
Issue  
Receiver issues (continued)  
Possible cause  
Solution  
Receiver does not log Insufficient memory on the  
Delete old files using the GPS  
Configurator or Trimble Survey  
Controller software, or by holding  
down p for 30 seconds.  
data.  
CompactFlash card.  
No CompactFlash card is  
inserted.  
Insert a CompactFlash card in the  
receiver.  
The CompactFlash card is not Remove the Compact Flash card and  
seated properly.  
reinsert it, making sure that it slides  
into the housing easily and seats into  
the pins.  
The receiver is tracking fewer Wait until the SV Tracking LED is  
than four satellites. flashing slowly.  
The CompactFlash card is not Format the CompactFlash card using  
formatted, or is corrupted.  
GPS Configurator, or by holding down  
p for 30 seconds.  
If the problem persists, use GPS  
Configurator to perform a full format.  
The receiver is not  
responding.  
Receiver needs soft reset.  
Receiver needs full reset.  
Power down the receiver and power  
back up.  
Hold down p for 30 seconds.  
If you want to retain data files, remove  
the CompactFlash card first.  
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Troubleshooting  
C
Table C.2  
Issue  
Receiver issues (continued)  
Possible cause  
Solution  
Using Trimble Survey Controller,  
connect to the reference radio through  
the receiver. If no connection is made,  
connect directly to the radio and  
Reference receiver is  
not broadcasting.  
Port settings between  
reference receiver and radio  
are incorrect.  
change the port settings. Try to  
connect through the receiver again to  
ensure that they are communicating.  
Faulty cable between receiver Try a different cable.  
and radio.  
Examine the ports for missing pins.  
Use a multimeter to check pinouts.  
No power to radio.  
If the radio has its own power supply,  
check the charge and connections.  
If power is routed through the  
receiver, ensure that the receiver’s  
external power source is charged and  
that power output on Port 3 is  
enabled.  
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C
Troubleshooting  
Table C.2  
Issue  
Receiver issues (continued)  
Possible cause  
Solution  
Roving receiver is not Reference receiver is not  
See above.  
receiving radio.  
broadcasting.  
Incorrect over air baud rates  
Connect to the roving receiver’s radio  
between reference and rover. and check to ensure it has the same  
setting as the reference receiver.  
Incorrect port settings  
If the radio is receiving data (the  
between roving external radio Logging/Memory LED is flashing) and  
and receiver.  
the receiver is not getting radio  
communications, use Trimble Survey  
Controller to check that the port  
settings are correct.  
The radio antenna cable and Make sure that the radio antenna  
GPS antenna cable are mixed cable (with the blue over-mould) is  
up.  
connected between the blue TNC  
connector marked RADIO and the  
radio antenna.  
The cellular modem does not Disable flow control on the modem.  
have hardware flow control  
Use a special cable. For more  
enabled.  
information, refer to the document  
Using Cellular and CDPD Modems for  
RTK, which is available from the  
Trimble website.  
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antennas  
* (NMEA checksum delimiter) 172  
, (NMEA field delimiter) 170  
.cfg files 55–59, 68, 135–138  
.dat files 66, 68  
size 65  
.elf files 50, 68, 132  
.eph files 68  
electrical interference 18, 117  
application file  
Numerics  
1PPS output  
configuring in real time 104  
default settings 85  
enabling in real time 104  
applying 59, 138  
Current (Current.cfg) 56, 84, 136,  
158  
Trimble R7 receiver 8, 82, 102–103  
Default (Default.cfg) 56, 84, 136, 158  
Default.cfg 84  
deleting 39, 125  
A
accuracy  
deleting by formatting CompactFlash  
card 44  
maximum number 56, 136  
naming 60, 138  
centimeter-level 8, 110  
submeter-level 8, 110  
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Index  
overview 55, 135  
bottom panel 17, 117  
bracket  
insert 24  
records 55, 135  
storing 59, 138  
receiver 24, 25  
RPA 22  
timed 40, 58, 90  
applying application files 59, 138  
ASCII  
cable 95  
output, default settings 85, 159  
time tags, definition 103  
coaxial 97  
B
RPA 16  
backpack setup 28  
baseline, moving 170  
batteries  
receiver at the same time 47  
charging with TSCe/TSC1  
for CompactFlash/USB door 13, 114  
cellphones 33, 121  
charging  
minimum power to charge 46  
standby 41  
minimum time required 46  
battery  
input 9, 111  
output 9, 111  
LEDs 41  
baud rate  
output, default settings 85  
coaxial cable, for connecting to GPS  
antenna 97  
default 85, 159  
maximum 82, 154  
binary output, default settings 85, 159  
blue RPA cable 16, 198  
blue TNC port 16, 198  
Bluetooth 3  
COCOM limits 10, 112  
cold start, time required 82, 154  
color-coded TNC ports 16  
CompactFlash card  
corrupted 196  
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Index  
logging data to 42  
transferring 65  
132  
CompactFlash/USB door catch 13, 114  
Data LED See Logging/Memory LED  
controller  
with serial connection 63  
power supply 48  
setup 26  
corrupted CompactFlash card 196  
Current application file 56, 84, 136, 158  
current receiver configuration 136  
baud rate 85, 159  
Current.cfg 56, 84, 136, 158  
factory 87  
D
DAT files 65, 66  
data  
measurement rate 86  
logging internally 42  
logging to Trimble Survey  
Controller 43, 128  
transferring from the receiver 61  
Data button 13, 38  
data files  
motion 85, 159  
NMEA output 85, 159  
overriding 136  
Port 3 power output 85  
position logging rate 86  
reference position 86, 159  
reference station 85, 159  
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Index  
serial format 85, 159  
power output on Port 3 49, 131  
when setting up the receiver 18, 117  
ephemeris file  
Trimble R8 receiver 158  
defining 59  
deleting files  
Event Marker LED See Radio LED  
event marker/1PPS  
cable 95  
cable pinouts 96  
examples, of default behavior 87  
in the receiver 68  
batteries 46  
135  
diameter, of pole 24  
dimensions  
F
factory defaults 87  
Trimble R7 receiver 80  
Trimble R8 receiver 152  
dual event marker input 8, 100  
dual-frequency RTK engine 8, 110  
FastStatic surveying  
features  
1PPS output 8  
initialization 8, 110  
E
electrical interference 18, 117  
electronic interference 112  
elevation mask  
default 85, 159  
enabling  
centimeter accuracy 8, 110  
charging batteries internally 9  
CMR input and output 9, 111  
CompactFlash card 9  
extended RTK 8  
1PPS output in real time 104  
event marker input in real time 100  
OTF data 8, 110  
real-time positioning 8, 110  
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Index  
formatting a CompactFlash card 36, 39, 44  
RTK data 8, 110  
frequencies, for internal radio 74, 144  
full format 196  
file size 65  
135  
file 55, 135  
file types  
.elf 68  
configuring event marker input 100  
DAT 65  
ephemeris (.eph) 68  
job 43, 128  
Trimble R8 receiver 120, 134, 140  
GPS LED See SV Tracking LED  
GSA message 176  
GSV message 178  
files  
deleting 68  
firmware  
guidelines for setting up receiver 19, 118  
upgrading 50, 72, 132, 142  
flashing LED 39, 125  
flow control  
H
default setting 85, 159  
disabling on cellular modem 33, 121,  
198  
Heading Information message 184  
Trimble R7 receiver 82  
Trimble R8 receiver 154  
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Index  
I
indicator LEDs 13, 39, 114, 125  
initialization  
latency  
specifications 82, 154  
input  
event marker 8, 99  
Logging/Memory 40  
135  
installing  
GPS Configurator software 70, 140  
interference  
Lemo cables, plugging in 19, 118  
limits, imposed by COCOM 10, 112  
internal batteries  
safety warning 45  
charging 9  
logging  
minimum power to charge 46  
operating time 45, 80, 152  
standby 41  
software 43, 128  
internal radio  
Trimble R7 receiver 31  
Trimble R8 receiver 120  
internal transmitter, R8 receiver 30  
Logging button See Data button  
Logging Rate record, in application file 55,  
135  
logging rate, default 86  
Logging/Memory LED 40  
longitude, NMEA field format 172  
Low Latency RTK mode, specifications 81,  
153  
J
job files 43, 128  
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Index  
M
maximum  
Memory LED See Logging/Memory LED  
memory, full 42, 196  
message ID, in NMEA messages 172  
mobile phones 33, 121  
motion, default settings 85, 159  
interference 18, 117  
output  
operating controls 114  
initialization  
NMEA 9, 111, 169  
RT17 82, 85, 155, 159  
RTCM 9, 111  
N
NMEA  
Trimble R7 receiver 82  
physical specifications 80, 152  
R7 92  
PTNL,GGK 179  
PTNL,GGK_SYNC 180  
PTNL,PJK 182  
pinouts  
data/power cable 94, 164, 165  
event marker/1PPS cable 96  
serial ports 93, 163  
pole diameter 24  
pole-mounted setup  
pole diameter 24  
PTNL,PJT 183  
PTNL,VGK 183  
PTNL,VHD 184  
summary 170  
values 172  
Trimble R7 receiver 22  
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Index  
power cable, pinouts 94, 164, 165  
Port 1  
default baud rate 85, 159  
icon 16, 116  
power supply 46  
Port 2  
1PPS output 100  
icon 16, 116  
Trimble R7 receiver 57  
PTNL,GGK message, Time, Position,  
Position Type, DOP 178  
PTNL,GGK_SYNC message 180  
PTNL,PJK message 182  
PTNL,VGK message 183  
PTNL,VHD message 184  
pulse, for 1PPS output 102  
Port 3  
pinout diagram 93, 163  
Position Error Statistics message 177  
position logging rate, default 86  
positioning specifications 81, 153  
postprocessed setup 20  
power  
Q
quick format 36, 43, 196  
external 49  
minimum to charge batteries 46  
Power button 13, 38, 125  
206 Trimble R7/R8 GPS Receiver User Guide  
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reset  
R
full 196  
soft 196  
icon 16, 116  
RPA 28  
radios  
Trimble R8 receiver 119  
RTCM output  
default settings 85  
messages 190  
Trimble R7 receiver 9  
receiver  
firmware files 68  
resetting 136  
red LED 40  
Satellite Information message 178  
scheduling logging sessions 58  
security limits 112  
Reference Position record, in application  
file 55, 135  
reference position, default 86, 159  
reference receiver, charging batteries 47  
reference station  
serial format, default setting 85, 159  
Serial Port Baud/Format record, in  
application file 55, 135  
serial ports  
pinouts 93, 164  
default settings 85, 159  
reformatting CompactFlash card 44  
registration 2  
Trimble R7 receiver 8, 9, 15  
setup  
backpack 28  
Trimble R7/R8 GPS Receiver User Guide 207  
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Index  
Synchronized RTK mode, specifications 81,  
153  
signal processing 82, 154  
size  
Sleep mode 40, 59, 90  
T
T01 files 67  
storage range 17, 80, 152  
time values in NMEA messages 173  
message 175  
Timed Activation record, in application  
file 55  
timed application file 58  
SNR mask, default setting 85  
soft reset 196  
specifications  
physical 80, 152  
standby, battery 41  
file 55, 135  
submeter-level accuracy 8, 110  
supported file types 68  
Survey Controller software See Trimble  
Survey Controller software  
SV Enable/Disable record, in application  
file 55, 135  
transceiver See Trimble R8 internal  
transmitter  
transferring  
data files from CompactFlash card 66  
data files from the receiver 61  
Trimble Binary Streamed Output See GSOF  
output  
Trimble Format (CMR) See CMR format  
Trimble R7 receiver  
SV enabling, default settings 85, 159  
SV Tracking LED 40  
backpack setup 28  
208 Trimble R7/R8 GPS Receiver User Guide  
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buttons 38  
internal radio 31  
LEDs 39  
files 56  
mounting on pole 26  
power supply 48  
setup 26  
turning the receiver on and off 39, 41, 125,  
126  
postprocessed setup 20  
Trimble R8 internal transmitter 30  
buttons 125  
internal radio 120  
Universal Time Coordinated (UTC) See UTC  
142  
USB cable, connecting for data transfer 64  
USB port 8, 9, 17, 82, 117  
use and care of Trimble R7 receiver 9  
UTC Day, Month, and Year, and Local Time  
LEDs 125  
files 136  
parts of the receiver 114–116  
resetting to factory defaults 125, 160  
specifications 151–155  
turning on and off 125, 126  
upgrading firmware 132, 142  
use and care 112  
UTC, NMEA time values 173  
V
Trimble Survey Controller software  
automatically enabling power  
output 50  
Vector Information message 183  
voltage  
minimum required to charge internal  
batteries 46  
of internal batteries 50  
configuring the internal radio  
with 120  
Trimble R7/R8 GPS Receiver User Guide 209  
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Index  
W
WAAS  
Trimble R8 receiver 110  
waking up, from Sleep mode 59  
warm start, time required 82, 154  
web site 1, 34, 121  
weight  
Trimble R8 receiver 152  
whip antenna 22  
WinFLASH software  
installing 72, 142  
world wide web site 1, 34, 121  
Y
yellow TNC port 16, 198  
Z
ZDA message 187  
Zephyr antenna 23  
Zephyr Geodetic antenna 23  
210 Trimble R7/R8 GPS Receiver User Guide  
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