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Professor RGM-3000/REB-3000
GPS Module Operational Manual)
Professor GPS Module: RGM-3000/REB-3000 series
Operational Manual
Introduction
RGM-3000/REB-3000 series is the third generation of Professor GPS Receiver. The GPS receiver is
powered by SiRF Star II technology and Professor proprietary navigation algorithm that providing you
more stable navigation data. The miniature design is the best choice to be embedded in a portable
device like PDA, mobile phone, person locator and vehicle locator. It supports TricklePower function
which can be enabled by external command for power saving. The excellent sensitivity of RGM-3000
gets the great performance when going though the urban canyon and foliage.
RGM/REB-3000 Configuration Select Table
RGM/REB
Power Config
1
I/O Connector
Switch Cable Ext ANT F/W Version
F/W Configuration
6
2
3
4
5
REB-3000 N: Normal
L: Low Power
F:FFC
1:SMA
2.Hirose 1.Enhanced 1.GGA,GSA,RMC,GSV,4800
0:None (GSV:5 sec/time, others: 1Hz)
P:Pin type
0:None
RGM-3000 N: Normal
L :Low Power
F:FFC
P:Pin Type
0:None
0: None 1.Enhanced 1.GGA,GSA,RMC,GSV,4800
(GSV:5 sec/time, others: 1Hz)
Product Features
RGM/REB-3000XXXXXX
—ꢀ OEM product development is fully supported through applications engineering and WEB
technique forum.
—ꢀSmall form factor.
—ꢀ12 parallel channels
—ꢀ0.1 second re-acquisition time.
—ꢀEnhanced algorithm for navigation stability.
—ꢀNMEA-0183 compliant protocol/custom protocol.
—ꢀWAAS demodulator
—ꢀExcellent sensitive for urban canyon and foliage environments.
—ꢀSingle satellite positioning.
—ꢀDual multi path rejection.
2
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RoyalTek RGM-3000/REB-3000
GPS Module Operational Manual)
Product applications
RGM-3000/REB-3000
—ꢀPortable IA device for personal navigation/ position commerce (P-Commerce)
—ꢀAutomotive applications
—ꢀPersonal positioning and navigation
—ꢀMarine navigation
—ꢀTiming application
—ꢀExtendable I/O capability – Provides programming I/O function and development tool kit for
customer
Product models
RGM-3000LXXXXX/REB-3000LXXXXX
Adopt the latest SIRF low power chips (GSP 2e-LP and GRF 2e-LP). Power consumption can be
lowered ro 80mA.
RGM-3000NXXXXX/REB-3000NXXXXX
Adopt the SIRF standard chips (GSP 2e and GRF 2e). Power consumption is 180mA
RGM-3000XFXXXX/REB-3000XFXXXX
RGM/REB-3000 with FPC type I/O connector.(22 pins,)
RGM-3000XPXXXX/REB-3000XPXXXX
RGM/REB-3000 with Pin type I/O connector.(20 pins)
RGM-3000XX00XX
The RGM-3000 is a stamp size GPS receiver with a patch antenna on top of GPS receiver.
REB-3000XXXXXX
REB-3000 provides the external antenna power (2.8DCV 5%) through RF cable. There are 3
models for versatile applications:
1) REB-3000XX10XX: with SMA RF cable.
2) REB-3000XX02XX: with 100 mm RF cable and a patch antenna.(RF cable can be customized)
3) REB-3000XX00XX: GPS receiver core module only
3
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Professor RGM-3000/REB-3000
GPS Module Operational Manual)
Picture
REB-3000XX02XX
REB-3000XX10XX
Switch Cable (standard:10cm)
SMA connector
4
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Professor RGM-3000/REB-3000
GPS Module Operational Manual)
RGM-3000XX00XX
REB-3000XX00XX
RF connector (HRS type)
5
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Professor RGM-3000/REB-3000
GPS Module Operational Manual)
RGM-3000/REB-3000 Series System Block Diagram
The RGM-3000/REB-3000 series consists of SiRF star II chipsets technology, Professor LNA and
proprietary software. The system is described as follows.
RGM-3000XX00XX/REB-3000XX01XX
Patch ANT
Flash
RS232 port (TTL) x 2
Memory
LNA
Programming I/O port x 7
Control line x 4
SiRF
SAW
Filter
SIRF
GRF2I
GSP2e
REB-3000XX10XX/REB-3000XX00XX
GPS.receiver w/o patch
ANT.
Flash
RS232 port (TTL) x 2
LNA
Memory
SiRF
SAW
Filter
Programming I/O port x 7
Control line x 4
SIRF
GRF2I
GSP2e
6
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Professor RGM-3000/REB-3000
GPS Module Operational Manual)
Ғ100mA max.
(3.3volt, w/o ext antenna)
REB-3000NXXXXX/RGM-3000NXXXXX
Current Ғ180mA typical
Technique specifications
RGM-3000/REB-3000 series.
Operational Characteristics.
12 Channels
Ғ200mA max.
(3.3volt, w/o ext antenna)
Weight. 30g(RGM-3000),15g(REB-3000)
Environment.
L1, 1575.42MHz.
C / A code, 1.023MHz chip rate.
Snap start: 3 seconds, 90%
Hot start: 8 seconds, 90%
Warm start: 38 seconds, 90%
Cold start: 48 seconds, 90%
Reacquisition:0.1 second, typical
Navigation update rate: Once per second.
Datum: WGS-84.
Temperature.
Operating temperature -40 ~ +85 Degree
(Celsius).
Storage temperature: -50 ~ +100 Degree
(Celsius).
Humidity Ғ95% noncondensing.
GPS Antenna
Specification(REB-3000XX02XX,
RGM-3000XX00XX)
Accuracy.
Position accuracy: Ғ 25m CEP without
SA
Center Frequency: 1575.42 1.023MHz
Bandwidth (-10dB return loss):ғ8MHz
Gain at Zenith: 3.0dBi Typ, ғ2dB;
Gain at 10° elevation :-1.0 dBi Typ,ғ-4dB
Polarization :R.H.C.P
Velocity accuracy:0.1 meters/second
without SA
DGPS Accuracy.
Position:1 to 5 m, typical
Axial Ratio : 2.0dB max
Velocity: 0.05 meters/second, typical
DGPS type
LNA Specification:(External ANT for
RGM-3000XX02XX )
WAAS, EGNOS, RTCM-104 protocol.
Dynamics.
Center Frequency: 1575.42 1.023MHz
Gain : ғ12dB
Altitude: 18000 meters (60000 feet) Max.
Velocity: 515 meters / second Max.
Acceleration: 4 g. , Max.
Noise Figure : Ғ3dB
Out Band Attenuation : 7dB min for 20MHz
20dB min for 50MHz
Power Requirements.
30dB min for 100MHz
The input voltage is 3.3V 10%, ripple Ғ
200mV. The power of active antenna is
supplied by RGM-3000/REB-3000 series.
Output V.S.W.R
Voltage
2.0dB max
DC 3.0v 10%
Ғ15mA
Current
REB-3000LXXXXX/RGM-3000LXXXXX
Current Ғ80mA typical
7
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Professor RGM-3000/REB-3000
GPS Module Operational Manual)
Mechanical Layout
RGM-3000/REB-3000 Mechanical Layout
REB-3000XF02XX (FPC Type)
Pin 1
REB-3000XF10XX (FPC Type)
Pin1
8
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Professor RGM-3000/REB-3000
GPS Module Operational Manual)
RGM-3000XF00XX (FPC Type)
Pin1
REB-3000XX00XX (FPC Type)
Pin1
9
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Professor RGM-3000/REB-3000
GPS Module Operational Manual)
REB-3000XP10XX (Pin Type)
Pin19
Pin20
Pin1
Pin2
Scale: 1.5:1
RGM-3000XP00XX (Pin Type)
Pin19
Pin1
A (3 : 1)
Scale: 2:1
Pin2
Pin20
10
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Professor RGM-3000/REB-3000
GPS Module Operational Manual)
REB-3000XP02XX (Pin Type)
Pin19
Pin20
Pin1
Pin2
Scale: 1 2 : 1
Dimension for Flexible Flat Circuit & Connector
11
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Professor RGM-3000/REB-3000
GPS Module Operational Manual)
Dimension for Pin type Connector(male and female):
12
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Professor RGM-3000/REB-3000
GPS Module Operational Manual)
Hardware interface
RGM-3000XFXXXX/REB-3000XFXXXX (FPC Type).
Connector TypeϖFPC, 22 Pin
Pin
NO
Name
I/O
Description
Characteristic
1
2
VCC
System Power
DC 3.3V 10%
( Suggested: add an external bypass capacitor.
Value ғ 2.2uF)
VCC
System Power
DC 3.3V 10%
( Suggested: add an external bypass capacitor.
Value ғ 2.2uF)
3
4
5
6
TXA
RXA
TXB
RXB
O
I
O
I
Navigation Data Output
Serial Data Input
Reserved
TTL LevelϗVohғ2.4VϓVolҒ0.4VϗIoh=Iol=2mA
TTL LevelϗVihғ0.7*VCCϗVilҒ0.3*VCC
TTL LevelϗVohғ2.4VϓVolҒ0.4VϗIoh=Iol=2mA
TTL LevelϗVihғ0.7*VCCϗVilҒ0.3*VCC
RTCM 104 Differential
GPS Input
7
TIMEMARK
O
1 Pulse per second time
mark Output
VilҒ0.2VϓPulse Widthғ10ms
8
9
10
11
Reserved
BOOTSEL
Reserved
VBAT
Not Used
No connection
I
I
Internal bootϓActive High TTL LevelϗVihғ0.7*VCCϗVilҒ0.3*VCC
Reserved
External Backup Power
Input
2.1VҒ Vbat Ғ3.6V
12 RESERVED
13
14
15
16
17
18
19
GPIO3
GPIO5
GPIO6
GPIO7
GPIO10
GPIO13
GPIO15
I/O General Purpose I/O Pin
I/O General Purpose I/O Pin
I/O General Purpose I/O Pin
I/O General Purpose I/O Pin
I/O General Purpose I/O Pin
I/O General Purpose I/O Pin
I/O General Purpose I/O Pin
TTL Levelϗ
OutputϖVohғ2.4VϓVolҒ0.4VϗIoh=Iol=2mA
InputϖVihғ0.7*VCCϗVilҒ0.3*VCC
TTL Levelϗ
OutputϖVohғ2.4VϓVolҒ0.4VϗIoh=Iol=2mA
InputϖVihғ0.7*VCCϗVilҒ0.3*VCC
TTL Levelϗ
OutputϖVohғ2.4VϓVolҒ0.4VϗIoh=Iol=2mA
InputϖVihғ0.7*VCCϗVilҒ0.3*VCC
TTL Levelϗ
OutputϖVohғ2.4VϓVolҒ0.4VϗIoh=Iol=2mA
InputϖVihғ0.7*VCCϗVilҒ0.3*VCC
TTL Levelϗ
OutputϖVohғ2.4VϓVolҒ0.4VϗIoh=Iol=2mA
InputϖVihғ0.7*VCCϗVilҒ0.3*VCC
TTL Levelϗ
OutputϖVohғ2.4VϓVolҒ0.4VϗIoh=Iol=2mA
InputϖVihғ0.7*VCCϗVilҒ0.3*VCC
TTL Levelϗ
OutputϖVohғ2.4VϓVolҒ0.4VϗIoh=Iol=2mA
InputϖVihғ0.7*VCCϗVilҒ0.3*VCC
20
21
22
GND
GND
GND
System GND
System GND
System GND
13
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Professor RGM-3000/REB-3000
GPS Module Operational Manual)
RGM-3000XPXXXX/REB-3000XPXXXX (PIN Type)
Connector Typeϖ20 Pin Headerϓ1.27 mm pitch
Pin
NO
1
Name
I/O
Description
Characteristic
VCC
System Power
DC 3.3V 10%
( Suggested: add an external bypass capacitor.
Value ғ 2.2uF)
2
VCC
System Power
DC 3.3V 10%
( Suggested: add an external bypass capacitor.
Value ғ 2.2uF)
3
4
5
6
7
GND
GND
RXA
TXA
RXB
System GND
System GND
Serial Data Input
Navigation Data Output
I
O
I
TTL LevelϗVihғ0.7*VCCϗVilҒ0.3*VCC
TTL LevelϗVohғ2.4VϓVolҒ0.4VϗIoh=Iol=2mA
TTL LevelϗVihғ0.7*VCCϗVilҒ0.3*VCC
RTCM 104 Differential
GPS Input
8
9
10
11
TXB
O
I
Serial Data Output
TTL LevelϗVohғ2.4VϓVolҒ0.4VϗIoh=Iol=2mA
Internal bootϓActive High TTL LevelϗVihғ0.7*VCCϗVilҒ0.3*VCC
BOOTSEL
Reserved
VBAT
Not used
No connection
2.1VҒ Vbat Ғ3.6V
External Backup Power
Input
12
13
Reserved
GPIO3
Not Used
No connection
TTL Levelϗ
I/O General Purpose I/O Pin
OutputϖVohғ2.4VϓVolҒ0.4VϗIoh=Iol=2mA
InputϖVihғ0.7*VCCϗVilҒ0.3*VCC
VilҒ0.2VϓPulse Widthғ10ms
14
15
TIMEMARK
GPIO6
O
1 Pulse per second time
mark Output
I/O General Purpose I/O Pin
I/O General Purpose I/O Pin
I/O General Purpose I/O Pin
I/O General Purpose I/O Pin
I/O General Purpose I/O Pin
I/O General Purpose I/O Pin
TTL Levelϗ
OutputϖVohғ2.4VϓVolҒ0.4VϗIoh=Iol=2mA
InputϖVihғ0.7*VCCϗVilҒ0.3*VCC
TTL Levelϗ
OutputϖVohғ2.4VϓVolҒ0.4VϗIoh=Iol=2mA
InputϖVihғ0.7*VCCϗVilҒ0.3*VCC
TTL Levelϗ
OutputϖVohғ2.4VϓVolҒ0.4VϗIoh=Iol=2mA
InputϖVihғ0.7*VCCϗVilҒ0.3*VCC
TTL Levelϗ
OutputϖVohғ2.4VϓVolҒ0.4VϗIoh=Iol=2mA
InputϖVihғ0.7*VCCϗVilҒ0.3*VCC
TTL Levelϗ
16
17
18
19
20
GPIO5
GPIO10
GPIO7
GPIO15
GPIO13
OutputϖVohғ2.4VϓVolҒ0.4VϗIoh=Iol=2mA
InputϖVihғ0.7*VCCϗVilҒ0.3*VCC
TTL Levelϗ
OutputϖVohғ2.4VϓVolҒ0.4VϗIoh=Iol=2mA
InputϖVihғ0.7*VCCϗVilҒ0.3*VCC
14
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Professor RGM-3000/REB-3000
GPS Module Operational Manual)
Definition Of Pin assignment
VCC DC Power Input
data to user written software. The default
setup is NMEA Output, 4800bps, 8 data bits,
no parity, 1 stop bit. The default sentences
are GPGGA, GPGSA, GPRMC once per
second and GPGSV once per 5 seconds.
This is the main power supply for the Engine
board. The power range is from 3.3V 10%,
ripple ≤ 200mV. The maximum current of
RGM-3000 is ≤ 200mA.
GND
Please refer to “software interface” for the
detail protocol.
GND provides the ground for the Engine
board. Connect all grounds.
RXA
This is the main receiving channel and is
used to receive software commands to the
Engine board from user written software.
Please refer to “software interface” for the
detail protocol.
VBAT
This is the battery backup supply that
powers the SRAM and RTC when main
power is removed. The input voltage level is
from 2.1V~3.6V. Max current draw is 10 uA
at 3.3volt. Without an external backup
battery or on board battery, engine board will
execute a cold start after every turn on. To
achieve the faster start-up offered by a hot
or warm start, either a backup battery must
be connected or battery installed on board.
TXA
RXB
This is used for DGPS differential input .
BOOTSEL
Pull Bootsel pin high & reset , then it will get
to boot mode.
GPIO
This pin can be programmed to input or
output. For more application, please contact
Royaltek’s sales.
This is the main transmit channel and is
used to output navigation and measurement
Absolute maximum ratings
Parameter
Supply voltage
Output current
Symbol
VCC
Unit
V
MA
Min. Value
Max. Value
3.63
2.97
200
Critical design guide and diagram
1.It is recommanded to attach GNDu plate (30*30MM) below RGM3000 module or the antenna
module of REB-3000XX02XX to increase the intensity of reception . Please refers to “Design Layout
Diagram “ .
15
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Professor RGM-3000/REB-3000
GPS Module Operational Manual)
2.During design of integrated layout, please isolate high frequency noise source (power Switch,data
or address signal lines ) from GPS antenna.
3. Please don’t place metal object above patch antenna.
Design Layout Diagram
Recommanded Ground plate for RGM-3000XF00XX/REB-3000XFXXXX
RGM-3000XF00XX with ground plate
16
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Professor RGM-3000/REB-3000
GPS Module Operational Manual)
Recommanded REB-3000 Antenna Ground Plate
Connector tool (Option, not included in standard kit)
It is used to remove or install FPC on connector.
Software interface
NMEA V2.2 Protocol
GSA, GSV, RMC and VTG.
It is the RS-232 interface:9600 bps, 8 bit
data, 1 stop bit and no parity. It supports the
following NMEA-0183 messages:GGA, GLL,
NMEA Output Messages
The Engine board outputs the following
messages as shown in Table 1:
Table 1 NMEA-0183 Output Messages
NMEA Record
Description
GGA
GLL
Global positioning system fixed data
Geographic position – latitude / longitude
GNSS DOP and active satellites
GSA
GSV
RMC
VTG
GNSS satellites in view
Recommended minimum specific GNSS data
Course over ground and ground speed
17
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Professor RGM-3000/REB-3000
GPS Module Operational Manual)
3723.2475, N, 12158.3416, W, 1,
07, 1.0, 9.0, M, , , ,0000*18
GGA-Global Positioning System
Fixed Data
Table 2 contains the values of the following
example: $GPGGA, 161229.487,
Table 2 GGA Data Format
Name
Message ID
UTC Position
Latitude
N/S Indicator
Longitude
Example
Units
Description
$GPGGA
GGA protocol header
161229.487
hhmmss.sss
3723.2475
ddmm.mmmm
N
N=north or S=south
dddmm.mmmm
12158.3416
E/W Indicator
Position Fix Indicator
Satellites Used
HDOP
MSL Altitude
Units
Geoid Separation
Units
Age of Diff. Corr.
Diff. Ref. Station ID
Checksum
W
1
07
1.0
9.0
M
E=east or W=west
See Table 2-1
Range 0 to 12
Horizontal Dilution of Precision
meters
meters
meters
meters
M
second Null fields when DGPS is not used
0000
*18
End of message termination
ҦCRҨҦLFҨ
Table 2-1 Position Fix Indicator
Value
Description
0
1
2
3
Fix not available or invalid
GPS SPS Mode, fix valid
Differential GPS, SPS Mode, fix valid
GPS PPS Mode, fix valid
example:$GPGLL, 3723.2475, N,
GLL-Geographic Position –
Latitude/Longitude
12158.3416, W, 161229.487, A*2C
Table 3 contains the values of the following
Table 3 GLL Data Format
Name
Example
$GPGLL
3723.2475
N
Units
Description
Message ID
GLL protocol header
Latitude
ddmm.mmmm
N/S Indicator
Longitude
N=north or S=south
Dddmm.mmmm
12158.3416
W
E/W Indicator
UTC Position
Status
E=east or W=west
hhmmss.ss
161229.487
A
A=data valid or V=data not valid
Checksum
ҦCRҨҦLFҨ
*2C
End of message termination
example:$GPGSA, A, 3, 07, 02, 26,
27, 09, 04, 15, , , , , , 1.8,1.0,1.5*33
GSA-GNSS DOP and Active Satellites
Table 4 contains the values of the following
18
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Professor RGM-3000/REB-3000
GPS Module Operational Manual)
Table 4 GSA Data Format
Name
Message ID
Mode 1
Example
Units
Description
$GPGSA
GSA protocol header
A
3
07
02
See Table 4-2
Mode 2
See Table 4-1
Satellite Used
Satellite Used
….
Sv on Channel 1
Sv on Channel 2
….
Satellite Used
PDOP
Sv on Channel 12
Position Dilution of Precision
Horizontal Dilution of Precision
Vertical Dilution of Precision
1.8
1.0
1.5
*33
HDOP
VDOP
Checksum
ҦCRҨҦLFҨ
End of message termination
Table 4-1 Mode 1
Value
Description
1
2
3
Fix not available
2D
3D
Table 4-2 Mode 2
Value
M
A
Description
Manual-forced to operate in 2D or 3D mode
Automatic-allowed to automatically switch 2D/3D
256, 42, 27, 27, 138,
GSV-GNSS Satellites in View
Table 5 contains the values of the following
example: $GPGSV, 2, 1, 07, 07, 79,
048, 42, 02, 51, 062, 43, 26, 36,
42*71$GPGSV, 2, 2, 07, 09, 23,
313, 42, 04, 19, 159, 41, 15, 12,
041, 42*41
Table 5 GSV Data Format
Name
Example
Units
Description
Message ID
$GPGSV
GSV protocol header
Number of Messages1
Messages Number1
Satellites in View
Satellite ID
2
1
07
07
79
048
42
Range 1 to 3
Range 1 to 3
Channel 1(Range 1 to 32)
Elevation
degrees Channel 1(Maximum 90)
Azimuth
degrees Channel 1(True, Range 0 to 359)
SNR (C/No)
….
Satellite ID
Elevation
dBHz
Range 0 to 99, null when not tracking
….
Channel 4(Range 1 to 32)
27
27
138
42
*71
degrees Channel 4(Maximum 90)
Azimuth
degrees Channel 4(True, Range 0 to 359)
SNR (C/No)
Checksum
ҦCRҨҦLFҨ
dBHz
Range 0 to 99, null when not tracking
End of message termination
1Depending on the number of satellites
tracked multiple messages of GSV data may
be required.
Specific GNSS Data
Table 6 contains the values of the following
example: $GPRMC, 161229.487, A,
3723.2475, N, 12158.3416, W, 0.13,
309.62, 120598, ,*10
RMC-Recommended Minimum
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Professor RGM-3000/REB-3000
GPS Module Operational Manual)
Table 6 RMC Data Format
Name
Message ID
UTC Position
Status
Latitude
N/S Indicator
Longitude
E/W Indicator
Speed Over Ground
Course Over Ground
Date
Magnetic Variation
Checksum
ҦCRҨҦLFҨ
Example
Units
Description
$GPRMC
161229.487
A
RMC protocol header
hhmmss.sss
A=data valid or V=data not valid
ddmm.mmmm
N=north or S=south
dddmm.mmmm
E=east or W=west
3723.2475
N
12158.3416
W
0.13
309.62
120598
knots
degrees
True
ddmmyy
degrees
E=east or W=west
*10
End of message termination
example:$GPVTG, 309.62, T, , M, 0.13, N,
VTG-Course Over Ground and
Ground Speed
0.2, K*6E
Table 7 contains the values of the following
Table 7 VTG Data Format
Name
Example
$GPVTG
309.62
T
Units
Description
VTG protocol header
Measured heading
True
Measured heading
Magnetic
Measured horizontal speed
Knots
Message ID
Course
degrees
degrees
knots
Reference
Course
Reference
Speed
M
0.13
N
0.2
K
*6E
Units
Speed
km/hr
Measured horizontal speed
Kilometer per hour
Units
Checksum
ҦCRҨҦLFҨ
End of message termination
.
GPS Receiver User’s Tip
1. GPS signal will be affected by weather and environment conditions, thus suggest to use the GPS
receiver under less shielding environments to ensure GPS receiver has better receiving performance.
2. When GPS receiver is moving, it will prolong the time to fix the position, so suggest to wait for the
satellite signals to be locked at a fixed point when first power-on the GPS receiver to ensure to lock
the GPS signal at the shortest time.
3. The following situation will affect the GPS receiving performance:
a.
b.
c.
d.
e.
Solar control filmed windows.
Metal shielded, such as umbrella, or in vehicle.
Among high buildings.
Under bridges or tunnels.
Under high voltage cables or near by radio wave sources, such as mobile phone base
stations.
Bad or heavy cloudy weather.
f.
4. If the satellite signals can not be locked or encounter receiving problem (while in the urban area), the
following steps are suggested:
a. Please plug the external active antenna into GPS receiver and put the antenna on outdoor or the
roof of the vehicle for better receiving performance.
b. Move to another open space or reposition GPS receiver toward the direction with less blockage.
c. Move the GPS receiver away from the interferences resources.
d. Wait until the weather condition is improved.
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Professor RGM-3000/REB-3000
GPS Module Operational Manual)
5. While a GPS with a backup battery, the GPS receiver can fix a position immediately at next power-on
if the build-in backup battery is full-recharged.
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