Display; Gps/Waas Receiver - Garmin GNS 480 Installation Manual

Decompression ..............................................55,000 feet (operation for up to 30 minutes at
Cooling ..........................................................Not required
1.3.4 D
ISPLAY
TSO/JTSO Compliance .................................TSO-C113 (SAE/AS8034)/JTSO-C113
Active Display Size .......................................3.8" Diagonal (3.1" (W) x 2.1"(H))
Display Format ..............................................320 pixels (W) x 240 pixels (H)
Viewing Angle (with 5:1 contrast ratio min.)
Left/Right..........................................60° from perpendicular
Up .....................................................60° from perpendicular
Down ................................................35° from perpendicular
Brightness
Maximum..........................................130 fL
Minimum ..........................................0.2 fL (at zero ambient light)
* Minimum brightness can be adjusted by the user to a value > 0.2 fL
1.3.5 GPS/WAAS R
TSO/JTSO Compliance .................................TSO-C146a (RTCA/DO-229C)/JTSO-C146
Number of channels.......................................15 (12 GPS and 3 GPS/WAAS/SBAS)
Frequency ......................................................1575.42 MHz L1, C/A code
Sensitivity (acquisition).................................-116 dBm to -134.5 dBm GPS
Sensitivity (drop lock) ...................................-144 dBm
Dynamic range...............................................> 20 dB
Lat/Long position accuracy ...........................<1 meter RMS typical with WAAS
Velocity .........................................................1000 knots maximum (above 60,000 ft)
TTFF (time to first fix) ..................................1:45 min. typical with current almanac, position, and
Reacquisition .................................................10 seconds typical
Position update interval .................................0.2 sec (5 Hz)
1 pps (pulse per second) ................................±275 nsec of UTC second
Datum ............................................................WGS-84
SATCOM compatibility ................................Compatible on aircraft equipped with SATCOM
Antenna power supply ...................................35 mA typical, 40 mA max at 4.7 VDC
GNS 480 (CNX80) Installation Manual560-0982-01 Rev A
55,000 feet supported)
P
ECEIVER ERFORMANCE
-116 dBm to -135.5 dBm WAAS
(horizontal/vertical)
time
General Information
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