HI-203E
Mini-DIN
GPS Receiver
User Manual
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General description of what
GPS is and how it works.
GPS (Global Positioning System) is the only system today
able to show you your exact position on the Earth anytime,
in any weather, anywhere. GPS satellites, 24 in all, orbit at
11,000 nautical miles above the Earth. They are
continuously monitored by ground stations located
worldwide. The satellites transmit signals that can be
detected by anyone with a GPS receiver. Using the receiver,
you can determine your location with great precision.
The satellites are positioned so that we can receive signals
from six of them nearly 100 percent of the time at any point
on Earth. You need that many signals to get the best
position information. Satellites are equipped with very
precise clocks that keep accurate time to within three
nanoseconds- that's 0.000000003, or three billionths of a
second. This precision timing is important because the
receiver must determine exactly how long it take s for
signals to travel from each GPS satellite. The receiver uses
this information to calculate its position.
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Although GPS was designed for military use, many
thousands of civi lians make use of it. The satellites actually
broadcast two signals, one is only formilitary use, and the
ther can be used by both military and civilians. Since GPS is
passive (you only need to receive the signal), there are no
restrictions on who can use the signal available to civilians.
GPS technology can be used in a variety of fields besides
providing navigation for vehicles on the sea, in the air and
on the ground. GPS applications also include keeping track
of where a fleet of trucks, trains, ships or planes are and
how fast they are moving; directin gemergency vehicles to
the scene of an accident; mapping where a city's assets are
located ; and providing precise timing for endeavors that
require large-scale coordination.
3
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GLOBAL POSITIONING SYSTEM
HI-203E GPS RECEIVER
Pin Assignment
1800±30mm
Connectors
1
1
3
5
2
2
4
6
PS/2 Connector
1
2
Function
Mini Din: 6 pin male
connector
CN1
Color
Green
White
5
4
2
1
TX
RX
Red
VCC
GND
Wire: 3.6 ± 0.1mm
Black
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Pocket PC
HI-203E PS/II GPS receiver Can Connecting to a female
PS/II Connector. One end from the female Connector is
+12V car charger (charging PDA and GPS receiver
simultaneously) the other end form the female PS/II
connector is the PDA connector for
connecting your PDA.
For notebook PC use:
HI-203E PS/II can also
connect with a PS/II to DB9
PS-232 serial cable or USB
connector.
5
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1. HI-203E Series Introductions
HI-203E is a GPS receiver with PS/II mini-DIN interfaces
and built-in active antenna for high sensitivity to tracking
signal. HI-203E is well suited to system integration and
users who use any kinds of mobile devices, such as, PDA,
notebook PC, Tablet PC, etc. It satisfies a wide variety of
applications for car navigation, personal navigation or
touring devices, tracking and marine navigation purpose.
Users can simply plug it into a PDA or other type of
handheld PC running with suitable mapping and routing
software for navigation.
1.1 Standard Package
Before you start up, make sure that your package includes
the following items. If any items are missing or damaged,
contact your dealer immediately.
• HI-203E GPS Receiver unit
• Suction CUP
• User Manual CD (including
User Manual, HaiTest Testing
Program, Driver for PCMCIA card slot of Notebook PC)
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Optional Accessories:
• PS/II to PDA connector and car charger
• PS/II to DB9 adapting cable
• PS/II to USB adapting cable
HI-203E-USB
HI-203E-XXXX
(Pocket PC Plug)
HI-203E-DB9
7
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SECTION 1
INTRODUCTION
1.1 OVERVIEW
12 Channel GPS Sensor Module
The HI-203E is an all-in-one GPS receiver module
specifically designed for handheld device market. It features
small size, low power consumption, and ease of use.
The HI-203E is optimized for good performance and low
cost. Its 12 parallel channels and 4000 time/frequency
search bins provide very fast signal lock-on and rapid time
to first fix. Having much faster satellite signal acquisition and
re-acquisition speed than the conventional 48 correlator
design, the HI-203E offers good navigation performance
even in difficult environments.
Both LVTTL-level and RS232-level serial interface are
provided on the interface connector.
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1.2 Features
• 12 parallel channel GPS receiver
• 4000 simultaneous time-frequency search bins
• Better than -135dBm sensitivity
• < 10 second hot start
• < 45 second cold start
• 5m CEP accuracy
9
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SECTION 2
RECEIVER OPERATION
Upon power up, after initial self-test has completed, the
HI-203E will begin satellite acquisition and tracking
process. Under normal open-sky condition, position-fix
can be achieved within approximately 35 seconds (within
10 seconds if valid ephemeris data is already collected
from recent use). After receiver position has been
calculated, valid position, velocity and time information are
transmitted through the on board serial interface.
The receiver uses the latest stored position, satellite data,
and current RTC time to achieve rapid GPS signal
acquisition and fast TTFF. If the receiver is transported over
a large distance across the globe, cold-start automatic-
locate sequence is invoked. The first position fix may take
up to 50 sec searching the sky for the GPS signal. The
acquisition performance can be improved significantly if the
host initializes the receiver with a rough estimate of time
and user position.
10
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As soon as GPS signal is acquired and tracked, the
HI-203E will transmit valid navigation information
through its serial interface. The navigation data
contains following information:
• Receiver position in latitude, longitude, and altitude
• Receiver velocity
• Time
• DOP error-magnification factor
• GPS signal tracking status
The HI-203E will perform 3D navigation when four or more
satellites are tracked. When three or fewer satellites are
tracked, altitude-hold is enabled using the last computed
altitude and 2D navigation mode is entered.
With signal blockage or rising and setting of the satellites,
where a change in satellite constellation used for position fix
occurred, large position error may result. The HI-203E
incorporates a proprietary algorithm to compensate the
effect of satellite constellation change, and maintains an
accurate smooth estimate of the receiver position, velocity,
and heading.
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2.1 TECHNICAL SPECIFICATIONS
FEATURES
Receiver Type
Accuracy
DESCRIPTIONS
12 parallel channel, L1 C/A code
Position: 5m CEP Velocity: 0.1m/sec
< 10sec hot start < 35sec warm start
< 45sec cold start
Startup Time
Reacquisition
1s
Acquisition Sensitivity Better than -135dBm
Update Rate
Dynamics
1Hz
4G (39.2m/sec2)
Operational Limits
Altitude < 18,000m or velocity < 515m/s
(COCOM limit, either may be exceeded but
not both)
Serial Interface
Protocol
LVTTL level and RS-232 level
NMEA-0183 V3.01
GPGGA, GPGLL, GPGSA, GPGSV,
GPRMC, GPVTG, GPZDA
4800 baud, 8, N, 1
Datum
Default WGS-84
User definable
Interface Connector
One 1.0mm pitch WTB S/R wafer
87213 SMT R/A type connector
3.8V ~ 12.0V
Input Voltage
Current Consumption
Dimension
90 ~ 110mA
46mm L x 31mm W x 14.5mm H
14g
Weight:
Operating
-40°C ~ +85°C
Humidity
5% ~ 95%
2.2 LED INDICATOR
LED flashing 0.25Hz
LED flashing 1Hz
Signal Searching
Position Fixed
12
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SECTION 3
HARDWARE INTERFACE
3.1 MECHANICAL DIMENSIONS
Unit:mm
Top View
41±0.2
I/O Cable
Lateral View
20±0.2
I/O Cable
LED indicator
Bottom View
41±0.2
I/O Cable
CPU
58±0.2
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pin-1
HI-203E Lateral View
3.2 PINOUT DESCRIPTION
Pin Number Signal Name
Description
Asynchronous serial
1
2
3
4
Serial Data Out 1 output at LVTTL level,
to output NMEA message
Asynchronous serial
Serial Data In 1 input at LVTTL level, to
input command message
Asynchronous serial
Serial Data Out 2 output at RS-232 level,
to output NMEA message
Asynchronous serial
Serial Data In 2 input at RS-232 level, to
input command message
5
6
Power
3.8V ~ 12.0V DC input
Ground
Power and signal ground
14
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3.3 ONE-PULSE-PER-SECOND (1PPS) OUTPUT
The one-pulse-per-second output is provided for
applications requiring precise timing measurements. The
output pulse is 1usec in duration. Rising edge of the output
pulse is accurate to +/-1usec with respect to the start of
each GPS second. Accuracy of the one-pulse-per-second
output is maintained only when the GPS receiver has valid
position fix.
The 1PPS output is always generated when the GPS
receiver is powered-on. Proper adjustment of the 1PPS
output to align with the GPS second requires calculation of
the receiver clock offset and clock drift-rate as part of the
position-velocity-time (PVT) solution. When enough satellite
signals are received to generate valid position fixes, the
1PPS output is adjusted to align with the GPS second in
several seconds. When the 1PPS output is brought in sync
with the GPS second, the 1PPS Valid Signal on the I/O pin
becomes active (HIGH); when the 1PPS output is not yet in
sync with the GPS second, the 1PPS Valid Signal remains
inactive (LOW).
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As long as enough satellite signals are received to generate
valid position fixes, the 1PPS output remains synchronized
to the GPS second, and the 1PPS Valid Signal remains
active. If signal blockage prevents the receiver from
generating valid position fix, the 1PPS output will drift away
from the GPS second and the 1PPS Valid Signal will
become inactive. Upon re-acquiring enough satellites to
generate consecutive valid position fixes, the 1PPS Valid
Signal will become active again, signaling that the 1PPS
output is again synchronized with the GPS second.
For best stable operation of the 1PPS signal, it is to be
operated in static environment having clear view of the sky.
16
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SECTION 4
SOFTWARE INTERFACE
This section describes the details of the serial port
commands through which the HI-203E is controlled and
monitored. The serial port commands allow users to set the
receiver parameters, configure output message type, and
retrieve status information. The baud rate and protocol of
the host COM port must match the baud rate and protocol
of the GPS receiver serial port for commands and data to
be successfully transmitted and received. The default
receiver protocol is 4800baud, 8 data bits, 1 stop bit, and
none parity.
4.1 NMEA OUTPUT MESSAGE SPECIFICATION
The HI-203E supports NMEA-0183 output format as
defined by the National Marine Electronics Association
messages for GPS applications are:
GGA Global Positioning System Fix Data
GLL Geographic Position Latitude / Longitude
GSA GNSS DOP and Active Satellites
GSV GNSS Satellites in View
RMC Recommended Minimum Specific GNSS Data
VTG Course Over Ground and Ground Speed
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4.1.1 NMEA Messages
The serial interface protocol is based on the National
Marine Electronics Association's NMEA 0183 ASCII
interface specification. This standard is fully define in
"NMEA 0183, Version 3.01" The standard may be obtained
4.1.2 GGA - GPS FIX DATA
Time, position and position-fix related data (number of
satellites in use, HDOP, etc.).
Format:
$GPGGA,<1>,<2>,<3>,<4>,<5>,<6>,<7>,<8>,<9>,
M,<10>,M,<11>,<12>,*<13><CR><LF>
Example:
$GPGGA,104549.04,2447.2038,N,12100.4990,E,1,06,
01.7,00078.8,M,0016.3,M,,*5C<CR><LF>
18
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Field Example Description
1
2
3
4
5
6
104549.04 UTC time in hhmmss.ss format,
000000.00 ~ 235959.99
2447.2038 Latitude in ddmm.mmmm format
Leading zeros transmitted
N
Latitude hemisphere indicator,
'N' = North, 'S' = South
12100.4990 Longitude in dddmm.mmmm format
Leading zeros transmitted
E
Longitude hemisphere indicator,
'E' = East, 'W' = West
1
Position fix quality indicator
0: position fix unavailable
1: valid position fix, SPS mode
2: valid position fix, differential GPS mode
Number of satellites in use, 00 ~ 12
Horizontal dilution of precision, 00.0 ~ 99.9
7
8
9
06
01.7
00078.8 Antenna height above/below mean sea level,
-9999.9 ~ 17999.9
10
11
0016.3 Geoidal height, -999.9 ~ 9999.9
Age of DGPS data since last valid RTCM
transmission in xxx format (seconds)
NULL when DGPS not used
12
13
Differential reference station ID, 0000 ~ 1023
NULL when DGPS not used
5C
Checksum
Note: The checksum field starts with a '*' and consists of 2 characters
representing a hex number. The checksum is the exclusive
OR of all characters between '$' and '*'.
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4.1.3 GLL - LATITUDE AND LONGITUDE, WITH TIME OF
POSITION FIX AND STATUS
Latitude and longitude of current position, time, and status.
Format:
$GPGLL,<1>,<2>,<3>,<4>,<5>,<6>,<7>*<8><CR><LF>
Example:
$GPGLL,2447.2073,N,12100.5022,E,104548.04,A,
A*65<CR><LF>
Field Example Description
1
2
3
4
5
6
7
2447.2073 Latitude in ddmm.mmmm format
Leading zeros transmitted
N
Latitude hemisphere indicator,
'N' = North, 'S' = South
12100.5022 Longitude in dddmm.mmmm format
Leading zeros transmitted
E
Longitude hemisphere indicator,
'E' = East, 'W' = West
104548.04 UTC time in hhmmss.ss format,
000000.00 ~ 235959.99
A
Status, 'A' = valid position,
'V' = navigation receiver warning
Mode indicator
A
'N' = Data invalid
'D' = Differential
'A' = Autonomous 'E' = Estimated
Checksum
8
65
20
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4.1.4 GSA - GPS DOP AND
ACTIVE SATELLITES
GPS receiver operating mode, satellites used for navigation,
and DOP values.
Format:
$GPGSA,<1>,<2>,<3>,<3>,<3>,<3>,<3>,<3>,<3>,<3>,
<3>,<3>,<3>,<3>,<4>,<5>,<6>*<7><CR><LF>
Example:
$GPGSA,A,3,26,21,,,09,17,,,,,,,10.8,02.1,10.6*07<CR><LF>
Field Example Description
1
2
A
3
Mode, 'M' = Manual, 'A' = Automatic
Fix type, 1 = not available,
2 = 2D fix, 3 = 3D fix
3
4
5
6
7
26,21,,,09, PRN number, 01 to 32, of satellite
17,,,,,,
10.8
used in solution, up to 12 transmitted
Position dilution of precision,
00.0 to 99.9
02.1
10.6
07
Horizontal dilution of precision,
00.0 to 99.9
Vertical dilution of precision,
00.0 to 99.9
Checksum
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4.1.5 GSV - GPS SATELLITE IN VIEW
Number of satellites in view, PRN number, elevation angle,
azimuth angle, and C/No. Only up to four satellite details are
transmitted per message. Additional satellite in view
information is sent in subsequent GSV messages.
Format:
...
$GPGSV,<1>,<2>,<3>,<4>,<5>,<6>,<7>,
<4>,<5>,<6>,<7> *<8><CR><LF>
,
Example:
$GPGSV,2,1,08,26,50,016,40,09,50,173,39,21,43,316,
38,17,41,144,42*7C<CR><LF>
$GPGSV,2,2,08,29,38,029,37,10,27,082,32,18,22,309,
24,24,09,145,*7B<CR><LF>
Field Example Description
1
2
Total number of GSV messages
to be transmitted
2
3
4
1
Number of current GSV message
Total number of satellites in view, 00 ~ 12
Satellite PRN number, GPS: 01 ~ 32,
SBAS: 33 ~ 64 (33 = PRN120)
Satellite elevation number, 00 ~ 90 degrees
Satellite azimuth angle, 000 ~ 359 degrees
C/No, 00 ~ 99 dBNull when not tracking
Checksum
08
26
5
6
7
8
50
016
40
7C
22
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4.1.6 RMC - RECOMMANDED MINIMUM SPECIFIC
GPS/TRANSIT DATA
Time, date, position, course and speed data.
Format:
$GPRMC,<1>,<2>,<3>,<4>,<5>,<6>,<7>,<8>,<9>,<10>,
<11>,<12>*<13><CR><LF>
Example:
$GPRMC,104549.04,A,2447.2038,N,12100.4990,E,
016.0,221.0,250304,003.3,W,A*22<CR><LF>
Field Example Description
1
2
3
4
5
6
104549.04 UTC time in hhmmss.ss format,
000000.00 ~ 235959.99
A
Status, 'V' = navigation receiver warning,
'A' = valid position
2447.2038 Latitude in dddmm.mmmm format
Leading zeros transmitted
N
Latitude hemisphere indicator,
'N' = North, 'S' = South
12100.4990 Longitude in dddmm.mmmm format
Leading zeros transmitted
E
Longitude hemisphere indicator,
'E' = East, 'W' = West
7
8
9
016.0 Speed over ground, 000.0 ~ 999.9 knots
221.0 Course over ground, 000.0 ~ 359.9 degrees
250304 UTC date of position fix, ddmmyy format
10
11
12
003.3
W
A
Magnetic variation, 000.0 ~ 180.0 degrees
Magnetic variation direction, 'E' = East, 'W' = West
Mode indicator
'N' = Data invalid
'A' = Autonomous
Checksum
'D' = Differential
'E' = Estimated
13
22
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4.1.7 VTG - COURSE OVER GROUND
AND GROUND SPEED
Velocity is given as course over ground (COG) and speed
over ground (SOG).
Format:
GPVTG,<1>,T,<2>,M,<3>,N,<4>,K,<5>*<6><CR><LF>
Example:
$GPVTG,221.0,T,224.3,M,016.0,N,0029.6,K,A*1F<CR><LF>
Field Example Description
1
2
3
4
5
221.0
224.3
016.0
True course over ground,
000.0 ~ 359.9 degrees
Magnetic course over ground,
000.0 ~ 359.9 degrees
Speed over ground,
000.0 ~ 999.9 knots
0029.6 Speed over ground,
0000.0 ~ 1800.0 kilometers per hour
Mode indicator
A
'N' = Data invalid
'A' = Autonomous
'D' = Differentia
l'E' = Estimated
Checksum
6
1F
24
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4.1.8 ZDA TIME AND DATE
Format:
$GPZDA,<1>,<2>,<3>,<4>,<5>,<6>*<7><CR><LF>
Example:
$GPZDA,104548.04,25,03,2004,,*6C<CR><LF>
Field Example Description
1
104548.04 UTC time in hhmmss.ss format,
000000.00 ~ 235959.99
2
3
4
5
25
03
UTC time: day (01 ... 31)
UTC time: month (01 ... 12)
UTC time: year (4 digit year)
Local zone hour
2004
Not being output by the receiver (NULL)
Local zone minutes
6
7
Not being output by the receiver (NULL)
Checksum
6C
Binary Messages
See Binary Message Protocol User's Guide for detailed
descriptions.
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MECHANICAL CHARACTERISTICS
31
1.2
4.3
unit: mm
10.5
6.6
25
3.5
46
10.5
2.5
46
1.5
0.9
14.5
2.5
3
8
25
31
2.5
1.5
26
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APPENDIX B
DEFAULT VALUES
The product has the following factory preset default values:
Datum:
000 (WGS-84)
GGA ON
NMEA Enable Switch:
GLL ON
GSA ON
GSV ON
RMC ON
VTG ON
Checksum ON
4800 Bps
Baud Rate:
Elevation Mask:
DOP Mask:
5 degrees
DOP Select: Auto
GDOP: 20
PDOP: 15
HDOP: 8
Receiver Operating Mode: Normal Mode (without 1PPS)
Commands can be issued to the HI-203E to change the settings of the
receiver. The new settings will remain effective on next power-on as long
as the on-board rechargeable backup battery is not discharged. After
the backup battery is discharged, factory preset default settings will be
used.
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TROUBLESHOOTING
Problem
Reasons
Solutions
No Position Weak or no GPS signal Place the HI-203E under an
output but
timer is
can be received at the open space, then, press
place of HI-203E unit
'Reset'
counting
At outdoor space but
GPS signal is blocked
by building or car roof
To try again, go to outdoor and
press 'Reset' or connect
external antenna on the side
of HI-203E to improve the
poor GPS signal
Execute Fail Wrong CPU type
PocketPC support multiple
typs of CPU. Make sure you
download the correct testing
(or mapping software).You
can use the PDA smart
menu's 'setting' function to see
wether the CPU type is correct
or not.
Can's open The PS/II connector
COM port
Plug HI-203E connector firmly
did not insert correctly or close all other application
or some other
application is the COM
port
that occupied the COM port
Can not find Poor connection
HI-203E
Check HI-203E if Plug firmly
No signal
No action for few
Close all applications and
exacute it again to re-open the
COM port
minites may causes
PocketPC into the
power saving mode. It
could close the COM
port at the same time.
Weak or no GPS signal Put HI-203E to an open space
when using HI-203E or car roof, then, press the
indoor or inside the car. Reset button
28
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GPS Receiver
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