Due to the fact that the GPS module used in the ADS-GM1 has been discontinued, we're currently evaluating replacements. The unit you receive will be functionally equivalent but may differ slightly in technical specifications from those shown below.
The ADS-GM1 is a high-sensitivity GPS receiver based on the SiRFstar III chipset. It has a 2-meter long cable terminated in a female DB9 connector that allows direct connection to an OpenTracker+, Tracker2, or any other device that provides regulated 5-volt power on pin 4.
- SiRFstar III high-sensitivity chipset
- Waterproof housing (IPX7 rating)
- Built-in low noise, high gain antenna
- Magnetic base
- LED clearly indicates positioning status
- No configuration required
- 20 channel all-in-view tracking
Sensitivity: -159 dBm typical
Accuracy: < 10 meters 2D RMS, < 7 meters WAAS corrected, time to 1 microsecond
Acquisition Rate: 1 sec hot start, 42 sec cold start
Dynamic Limits: < 18,000 meters, < 1000 knots, < 4G acceleration
Power Supply: 5 VDC +/- 5%, 80 mA max, 55 mA typical
Interface: NMEA-0183 at 4800 baud, optional SiRF binary
NMEA Messages: GGA, GSA, GSV, RMC, and optionally VTG, GLL, and ZDA
Weight: 85 grams
LED flashes red to indicate valid GPS fix. Made in Taiwan.
|2||RS-232 data out (+/- 6v)|
|3||RS-232 data in|
|-||TTL data out (0-3v)|
|-||TTL data in|