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Overview
The GT-3731T (GPS receiver) is a compact all-in-one GPS receiver that continuously tracks all satellites in view and provides accurate satellite positioning data. Its 48 parallel channels and 400K search bins provide fast satellite signal acquisition and short start-up time. Acquisition sensitivity of -146dBm and tracking sensitivity of -160 dBm offer good performance even under difficult environments.The GT-3731T (GPS receiver) is optimized for applications requiring good performance and low cost; it is suitable for a wide range of handhelds, asset tracking, Notebook, PDA-centric personal navigation system, and vehicle navigation products.
Features
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48 channels to acquire and track
satellites simultaneously
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Industry-leading TTFF speed
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High sensitivity of -160dB in tracking
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SBAS (WAAS/EGNOS) capable
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Cold start < 36sec
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Reacquisition < 1sec
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Accuracy 2.5m CEP
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USB Interface
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Easy-plug-in Notebook
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User configurable and store in memory
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25.4 mm x 25.4 mm x 6.5 mm
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RoHS compliance
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Specifications
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Parameter |
Specification |
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Receiver Type |
48 channels |
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Acquisition sensitivity |
-146dBm |
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Tracking sensitivity |
-160dBm |
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Receiver frequency |
1575.42MHz
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Code |
C/A code |
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Accuracy
(1) Position
(2) Velocity
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2.5m CEP
0.1m/sec
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Startup Time
hot start
warm start
cold start
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<2 sec
<26 sec
<36 sec
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Signal Reacquisition |
<1s |
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Update Rate |
1Hz |
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Operational Limits
(1) Altitude
(2) Velocity
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<18,000m
515m/s
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Dynamics |
4G (39.2m/sec2) |
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Datum |
WGS-84 |
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Protocol |
NMEA-0183 V.3.01 |
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Serial Interface |
USB interface |
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Input Voltage |
5V +/- 5% |
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Power Consumption |
130mW |
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Connector |
USB B-type 4P male connector with 1.8M cable |
Communication Sepecifications
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Item |
Description |
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Interface |
Full duplex serial interface |
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Bit rate |
4800,9600,19200,38400,57600,115200 baud (default9600) |
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Start bit |
1 bit |
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Stop bit |
1 bit |
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Data bit |
8 bit |
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Parity |
none |
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Transmission data |
NMEA0183 Ver.:3.01 |
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Update rate |
1Hz |
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Output sentence |
GPGGA, GPGLL, GPGSA, GPGSV, GPRMC, GPVTG, GPZDA |
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