RS232 GPS System
Features
- WAAS(Wide Area Augmentation System) demodulator
- Advanced power management for power saving and stand-by modes.
- Improved multi-path rejection
- 1920 time/frequency search channels for signal acquisition
- All-in-view 12-channel parallel processing
- Cold start under 60 seconds
- Maximizes GPS position availability
- SingleSat updates in reduced visibility
- Superior urban canyon performance
- FoliageLock for weak signal tracking
- Reduce need for external sensors
- Specifications
- [Receiver]
- Frequency L1, 1575.42MHz
- C/A code 1.023MHz chip rate
- Channels 12
- Sensitivity -170dBW
- [Accuracy]
- Position Horizontal 25m 95% (SA off),
- Position Vertical 40m 95% (SA off),
- Velocity 0.2m/sec 95% (SA off),
- Time 340 nsec. 95% C/A code
- [Datum]
- WGS-84
- [Acquisition Rate]
- Reacqusition
- Hot start 0.1 sec., average (recovery time for being interrupted)
- Warm start 8 sec., average (with ephemeris and almanac valid)
- Cold start 38 sec., average (with almanac but not ephemeris)
- SnapStart 45 sec., average (neither almanac nor ephemeris)
- [Dynamic Condition]
- Altitude < 60,000 feet
- Velocity < 1000 knots
- Acceleration 4g., max.
- Jerk 20 meters/ sec3, max
- [Power]
- Voltage supply 3Vdc or 5 Vdc, as ordered
- Current consumption 160mA typical for Continuous mode 60mA average for 20% duty
- cycle Trickle-Power mode 3mA average for Push-to-Fix mode
- [Serial Port]
- Ports DGPS protocol one for GPS
- Electrical level TTL level or RS232 level
- Communication Full duplex asynchronous
- Bit Pattern 8 bits, 1 stop bit, no parity
- Code type ASCII for NMEA/ Binary for SiRF
- GPS Protocol SiRF binary/NMEA 0183 changeable
- GPS Function NMEA 0183 (v2.2) >> GGA, GSA, GSV, RMC, VTG, and GLL
- GPS transfer rate NMEA ASCII 4800bps
- DGPS protocol RTCM SC-104, ver 2.00, type 1, 2, and 9
- [Time Mark] (1 PPS Pulse)
- Level TTL
- Pulse duration 100ms
- Time reference At the pulse positive edge
- Measurement Aligned to GPS sec., +/- 1us
- Environmental Characteristics
- [Temperature]
- Operating -40 deg. C to +85 deg. C
- [Humidity]
- Operating 5% to 95% R.H.
- Physical Characteristics
- [Dimension]
- Diameter 59mm
- Height 20mm
- Weight 7gm