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Specifications
1.gps tracking module GM252.-160dBm tracking sensitivity
3.small form factor and low power consumption
gps tracking module GM25
The SkyNav GM25 is a complete GPS module that features super sensitivity, ultra low power and small form factor. The GPS signal is applied to the antenna input of module, and a complete serial data message with position, velocity and time information is presented at the serial interface with NMEA protocol or custom protocol.
Its -160dBm tracking sensitivity extends positioning coverage into place like urban canyons and dense foliage environment where the GPS was not possible before. The small form factor and low power consumption make the module easy to integrate into portable device like PNDs, mobile phones, cameras and vehicle navigation systems
Performance Specification
Parameter | Specification | |
| Receiver Type | L1 frequency band, C/A code, 20-channels | |
Sensitivity | Tracking Acquisition | -160dBm -144dBm |
Accuracy
| Position Velocity Timing (PPS) | 3m CEP without SA 0.1m/s without SA 60ns RMS |
Acquisition Time | Cold Start Warm Start Hot Start Re-Acquisition | 36s 30s 2s <1s |
Power Consumption | Tracking Acquisition Sleep/Standby | 35mA @3V Vcc 35mA TBD |
Navigation Data Update Rate | 1Hz |
|
Operational Limits | Altitude Velocity Acceleration | Max 18,000m Max 515m/s Less than 4g |
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