Globalsat Technology GTV-580 - Manual (Page 6)

6
► GPS Specification
Electrical Characteristics
GPS Chipset SiRF Star III
Frequency L1, 1575.42 MHz
C/A Code 1.023 MHz chip rate
Channels 20 channel all-in-view tracking
ACCURACY
Position Horizontal 10 meters, 2D RMS
1-5 meters 2D RMS, WAAS corrected
Velocity 0.1m/sec
Time 1 micro-second synchronized to GPS time
DATUM
Datum Default: WGS-84
ACQUISITION RATE
Hot start 1 sec., average
Warm start 38 sec., average
Cold start 42 sec., average
Reacquisition 0.1 sec. average
PROTOCOL
GPS Protocol Default: NMEA 0183 (Secondary: SiRF binary)
GPS Output format GGA(1sec), GSA(1sec), GSV(5sec), RMC(1sec), GLL, VTG
is optional
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