Globalsat BR-304

Feature:
1. "SiRF Star II/LP" high performance and low power consumption chipset.
2. All-in-view 12-channel parallel processing.
3. Built-in active antenna.
4. High sensitivity to satellite signal.
5. Cold start under an average 45 seconds.
6. Superior urban canyon performance.
7. FoliageLock for weak signal tracking.
8. Build-in SuperCap to reserve system data for rapid satellite acquisition.
9. Supported NMEA 0183 command: GGA, GSA, GSV, RMC, GLL, VTG
10. Super-cohesive magnetic for mounting on car.
11. LED indicator for GPS fix or not fix.
LED OFF: Receiver switch off
LED ON : No fixed, Signal searching
LED Flashing: Position Fixed
12. Non-slip adhesive on the bottom
13. RS232 interface connection port
Specification:
Interface Interface RS232
Output Messages NMEA0183 V2.2 protocol, and supports command:GGA, GSA, GSV, RMC, GLL, VTG
Datum WGS84
Hot Start 8 sec.average
Warm Start 38 sec.average
cold Start 45 sec.average
Altitude Limit 18,000m(60,000 feet)Max.
Re-acquisition 100ms
Velocity Limit 515 meters/sec(1000knots)Max
Jerk Limit 20 m/sec**3
Horizontal Accuracy 15m 2d RMS without SA
5m 2d RMS WAAS enabled
Vertical Accuracy 40m 95%
Velocity Accuracy 0.1m/sec 95%
Time Accuracy 1us synchronized to GPS time
Dimension 59 mm*47mm*21mm
Power Consumption 80 mA(include Antenna)
Storage Temperature -30°C ~ 80°C
Operation Temperature -40°C ~ 85°C
Humidity Up to 95% non - Condensing