190-00228-20
GPS 16/17 Technical Specifications
Rev. C
Page 6
1.7.4 GPS Performance
1.7.4.1 Receiver
Enabled™; 12 parallel channel GPS receiver continuously tracks and uses up to 12 satellites (up to
11 with PPS active) to compute and update your position.
1.7.4.2 Acquisition Times
•
Reacquisition:
Less than 2 seconds
•
Warm:
Approx. 15 seconds (all data known)
•
Cold:
Approx. 45 seconds (initial position, time, and almanac known; ephemeris unknown)
•
AutoLocate
®
:
5 minutes (almanac known; initial position and time unknown)
•
SkySearch:
5 minutes (no data known)
1.7.4.3 Sentence Rate
•
GPS 16LVS, 16HVS,
17HVS, & 17N:
1 second default; NMEA 0183 output interval configurable from 1 to 900
seconds in 1-second increments
•
GPS 16A:
1 second independent update rate, propagated every 200 milliseconds
1.7.4.4 Accuracy
•
GPS Standard Positioning Service (SPS)
Position:
< 15 meters, 95% typical (100 meters with Selective Availability on)
Velocity:
0.1 knot RMS steady state
•
DGPS (USCG/RTCM)
Position:
3–5 meters, 95% typical
Velocity:
0.1 knot RMS steady state
•
DGPS (WAAS)
Position:
< 3 meters, 95% typical
Velocity:
0.1 knot RMS steady state
•
PPS Time (Not available on GPS 16A or 17N): ±1 microsecond at rising edge of PPS pulse
(subject to Selective Availability)
•
Dynamics:
999 knots velocity (only limited at altitude greater than 60,000 feet), 6g dynamics
