Apollo MX20 - Nternal Gps Receiver Performance

Specifications
46 Apollo MX20 Installation Manual
3.1.14 INTERNAL GPS RECEIVER PERFORMANCE
Number of channels ........................................8
Frequency........................................................1575.42 MHz L1, C/A code
Sensitivity (acquisition) ..................................-135 dBm
Sensitivity (drop lock) ....................................-142 dBm
Dynamic range ................................................> 20 dB
Lat/Lon position accuracy...............................15 meters RMS typical
25 meters, SEP, without SA
100 meters 2DRMS with SA
Velocity...........................................................1000 knots maximum
Acceleration ....................................................4G maximum
TTFF (time to first fix) ...................................25 seconds typical with current almanac, position, time, and
ephemeris
55 seconds typical with current almanac, position, and time
Reacquisition...................................................2.5 seconds typical
Position update interval...................................1 second typical
Datum..............................................................WGS-84