Chipset | |
Chipset | SiRF Start III |
Electrical Characteristics | |
Frequency | L1, 1575.42 MHz |
C/A Code | 1.023 MHz chip rate |
Channels | 20 channel all-in-view tracking |
Sensitivity | -159 dBm |
Accuracy | |
Position Horizontal | 10m 2D RMS (SA off) |
Velocity | 0.1m/sec 95% (SA off) |
Time | 1 micro-second synchronized to GPS time |
WAAS enabled | 5m 2D RMS |
Datum | |
Datum | WGS-84 |
Acquisition Rate | |
Hot Start |
1 sec. average (with ephemeris and almanac valid) |
Warm Start | 38 sec. average (with almanac but not ephemeris) |
Cold Start | 42 sec. average (neither almanac nor ephemeris) |
Reacquisition | 0.1 sec. average (interruption recovery time) |
Protocol | |
GPS Protocol |
Default: NMEA 0183 (Secondary: SiRF binary) |
GPS Output Data | SiRF binary >> position, velocity, altitude, status and control ; NMEA 0183 protocol supports command: GGA, GSA, GSV, RMC, VTG, GLL (VTG and GLL are optional) |
GPS Transfer Rate | Default : 9600,n,8,1 for NMEA |
Dynamic Condition | |
Acceleration Limit | Less than 4g |
Altitude Limit | 18,000 meters (60,000 feet) max. |
Velocity Limit | 515 meters/sec. (1,000 knots) max. |
Jerk Limit | 20 m/sec**3 |
Temperature | |
Operating |
-40°~ 85°C / -40°F ~ 185°F |
Storage | -40°~ 85°C / -40°F ~ 185°F |
Humidity | Up to 95% non-condensing |
Power | |
Voltage |
4.5V ~ 6.5V |
Current | 80mA typical (Continuous mode) |
Physical Characteristics | |
Dimensions (D x H) | 53 x 19.2 mm / 2.09 x 0.76 in |
Cable Length | 2.7m / 8.86ft |