General L1 (1575.42 MHz) Frequency, C/A Code, 12-channel, parallel-tracking receiver, DSP-based
Update Rate TSIP @ 1 Hz; NMEA @ 1 HZ
Accuracy
- Horizontal Position: <6 meters (50%), <9 meters (90%)
- Altitude Position: <11 meters (50%), <18 meters (90%)
- Velocity: 0.06 m/sec
- PPS: within 15 ns to GPS/UTC (1 Sigma) <5 ns with quantization error removed
Acquisition
- Reacquisition: <2 sec. (90%)
- Hot Start: <14 sec (50%), <18 sec (90%)
- Warm Start: <41 sec (50%), <45 sec (90%)
- Cold Start: <46 sec (50%), <50 sec (90%)
Cold start requires no initialization. Warm start implies last position, time and almanac are saved by backup power. Hot start implies ephemeris also saved. Hot and Warm are shown for comparison purposes and are not used in timing applications.
Sensitivity
- Acquisition ?136 dBm
- Tracking ?141 dBm
Operational (COCOM)
- Limits Altitude 18,000 m, Velocity 515 m/s
Either limit may be exceeded, but not both
Dimensions 66.3mm L x 32.1mm W x 8.5mm H (2.6"L x 1.3"W x 0.33"H)
Weight approximately 12.5 grams (0.4 ounce)
Operating Temperature ?40° C to +85° C
Storage Temperature ?55° C to +105° C
Vibration 0.008 g2/Hz 5 Hz to 20 Hz, 0.05 g2/Hz 20 Hz to 100 Hz, •3 dB/octave 100 Hz to 900 Hz
Operating Humidity 5% to 95% R.H. non-condensing, at +60° C
Altitude •400 to 18,000 m max
Prime Power +3.3 VDC ±0.3 VDC
Power Consumption GPS board only: 350 mW @ 3.3 V
Ripple Noise Max 50 mV, peak to peak from 1 Hz to 1 MHz
Antenna Fault Protection Short-circuit/open detection and protection
Connectors
- I/O: 8-pin (2x4) 2 mm Male Header
- RF: Right-angle SMB (SMA optional)
Serial Port 1 serial port (transmit/receive)
PPS 3.3 V CMOS-compatible TTL-level pulse, once per second
Rising edge of the pulse synchronized with GPS/UTC
Protocols TSIP @ 9600 baud, 8 bits NMEA 0183 v3.0 @ 4800 baud, 8 bits
NMEA Messages GGA, VTG, GLL, ZDA, GSA, GSV and RMC Messages selectable by TSIP command Selection stored in fl ash memory
