Features
*** GM-305 has been phased out and has been replaced by GT-321R-RS232 ***
With a miniature form factor, the GM-305 module manifests EverMore's latest 12-channel GPS technology.
The GM-305 GPS receiver is designed for rapid startup time and high performance in foliage and urban canyon environments. GM-305 applies the latest semiconductor technology so as to provide robust performance.
GM-305 provides enhanced position & velocity filtering for smooth navigation, and onboard patch antenna & RS-232 driver for simple interfacing.
The optional Evaluation Kit makes it easy to evaluate the performance of GM-305. The kit consists of GM-305 housed in translucent case, a Window-based evaluation software, and an operation manual.
Specifications
- General: L1 (1575.42MHz), C/A code, 12-channel, Carrier-Aided with HWTrackc.
- Sensitivity : 165 dBW minimum
- Update Rate :1Hz
- Accuracy:
- Position :25m CEP S/A off
- Velocity :0.1/sec S/A off
- BTime : ± 1ms
- Typical Acquisition Time:
- Cold start: < 120sec
- Warm start: < 40 sec
- Hot start: < 10 sec
- Reacquisition :100 millisecond
- Dynamics :
- Altitude : -1000m to + 18,000m
- Velocity : 500m/sec
- Acceleration : ± 4g
- Operation Temperature : -40°C to +85°C
- Storage Temperature : -55°C to + 100°C
- Operating Humidity : 5% to 95%
- Primary Power : 3.8V~8V DC, ±10%
- Power Consumption:
- 125mA @ 3.3V
- 70-90mA with power saving
- Serial Port : Standard RS-232
- IOs : 1 PPS & TX out @TTL level
- Protocols : Ever More binary mode@4800/9600 baud, 8N1 NMEA-0183 v2.20@4800/9600 baud, 8N1
- Datum : 219 standard datum; WGS-84 (default)
- NMEA Messages : GGA, GSA, GSV, RMC (standard output) GLL and VTG (optional)
- Dimensions : 45mm x 30mm x 13mm w/o housing
- Weight: 25g w/o housing
References and Support
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GM-305
GPS Receiver with RS-232 Interface
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