190-01499-02 GTX 3x5 TSO Installation Manual
Rev. 1 Page 1-9
1.10 1090 MHz Receiver Specifications
Table 1-8 1090 MHz Receiver Specifications
1.11 GPS Specifications
Table 1-9 GNSS Receiver Specifications
[1] GBAS correction and integrity data provided by an external VHF receiver.
Characteristic Specification
Frequency 1090 MHz +
1 MHz
Modulation Binary pulse-position
Data rate 1 Mbps
Sensitivity -82 dBm for 90% MSR
Characteristic Specification
Number of channels 15 (12 GPS and 3 GPS/SBAS receiver [1]
Frequency 1575.42 MHz L1, C/A code
Sensitivity (acquisition, no interference)
-134.5 dBm GPS
-135.5 dBm SBAS
Sensitivity (drop lock) -144 dBm
Dynamic range >20 dB
LAT/LON position accuracy
<1.25 meter RMS horizontal, <2 meter vertical, with
SBAS
Velocity 1000 knots maximum (above 60,000 ft)
TTFF (Time To First Fix)
1:45 min. typical with current almanac, position, and
time
Reacquisition 10 seconds typical
Position update interval 0.2 sec (5 Hz)
1PPS (Pulse Per Second) ± 275 nsec of UTC second
Datum WGS-84
SATCOM compatibility
SATCOM compatibility is dependent on antenna
selection
Antenna power supply 35 mA typical, 40 mA max at 4.7 Vdc