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GPS Data Module


An application specific GPS receiver module to output dynamic GPS serial data messages in a variety of formats (NMEA, Binary etc).  This device has an external antenna feed.  The data o/p is supplied in RS232 format for connecting to external instruments e.g. Flir camera for symbology information, Digital Video transmission links for remote data.

Its compact size allows for simple, discrete installation, with simplicity of interfacing providing for plug and play operation.

Performance Characteristics
Receiver Type                                 L1 frequency, C/A code, 16 Channels
Position Accuracy                            w/o aid 3.3 m CEP
Start-up Time                                  Hot start < 3 s
Warm start 35 s
Cold start 41 s
Reacquisition Time < 1 s
Acceleration                                    < 4 g
Update Rate                                    1 Hz
Timing Accuracy                              50 ns RMS
Sensitivity                                        Acquisition -140 dBm
Tracking -149 dBm

Power
Input Voltage                                   9.0 ~  30 V DC 
Power Consumption                       50 mA @ 12 volts dc


Connectivity
Antenna
Type                                       External Active or Passive Antenna
(Using the Navtech Systems Diplexer a single antenna can be shared between GPS receivers).

Power
DC input                                via Lemo connector             +ve (red), -ve (blue) 
via USB lead                         pin 1 (red) +ve,  pin 4 (black) –ve

I/O – (USB cable)                 o/p  = pin 2 (white), i/p pin 3 (green) common = pin 4 (black)

Data protocol
RS232            - NMEA, 0183 ASCII (Default), UBX binary, RTCM (i/p) – software configurable

Message sentences selectable
GPGSV,3,3,09,28,16,050,39*42
$GPGLL,5226.12614,N,00101.89626,W,091809.00,A,A*72
$GPZDA,091809.00,03,11,2005,00,00*6B
$GPRMC,091810.00,A,5226.12611,N,00101.89626,W,0.028,20.33,031105,,,A*46
$GPVTG,20.33,T,,M,0.028,N,0.052,K,A*02
$GPGGA,091810.00,5226.12611,N,00101.89626,W,1,7,1.07,167.2,M,47.3,M,,*79
$GPGSA,A,3,29,05,07,18,22,26,28,,,,,,4.04,1.07,3.90*00

Default messages
$GPGLL,5226.12614,N,00101.89626,W,091809.00,A,A*72
$GPRMC,091810.00,A,5226.12611,N,00101.89626,W,0.028,20.33,031105,,,A*46
$GPGGA,091810.00,5226.12611,N,00101.89626,W,1,7,1.07,167.2,M,47.3,M,,*79
$GPZDA,091809.00,03,11,2005,00,00*6B

Mechanical Information
Dimension                                        45 x 85 X 25 mm
Weight                                               100 g
Fixings                                               32mm (two holes) x 76mm (1 hole) for M3 (4-40 unc)

Environment
Operating Temperature                   - 40° C ~ 85° C
Storage Temperature                      - 40º C ~ 125° C

 

 
 
Navtech Systems Ltd. Sulby, Nr Welford, Northamptonshire, NN6 6EZ, United Kingdom.
Telephone: +44 (0)1858 880857 - Fax: +44 (0)1858 880859