Garmin GPS 500, Installation Manual

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Page 1-4 500 SERIES INSTALLATION MANUAL
Rev Q 190-00181-02
** Specifications shown apply at nominal input voltages of 13.75 Vdc or 27.5 Vdc, as applicable, and with
a nominal 50 ohm resistive load at the antenna connector.
1.3.5 VOR Specifications (GNS 530 Only)
Regulatory Compliance
TSO C40c, JTSO-2C40c, RTCA DO-196, EuroCAE ED-22B
ICAO Annex 10 Volume I (Radio Navigation Aids) Par. 3.3.8
Regulatory Compliance
(TAWS units only)
ETSO-2C40c
Receiver Audio Sensitivity At -103.5 dBm (S+N)/N shall not be less than 6 dB.
Course Deviation Sensitivity
-103.5 dBm or less for 60% of standard deflection.
Flag The VOR Course Deviation Flag must be flagged:
a) in the absence of an RF signal.
b) in the absence of the 9960 Hz modulation.
c) in the absence of either one of the two 30 Hz
modulations.
d) When the level of a standard VOR deviation test signal
produces less than a 50% of standard deflection.
AGC Characteristics
From -99 dBm to -13 dBm input of a Standard VOR Audio
Test Signal, audio output levels shall not vary more than 3
dB.
Spurious Response
Greater than 80 dB.
VOR OBS Bearing Accuracy The bearing information as presented to the pilot shall not
have an error in excess of 2.7° as specified by RTCA DO-196
and EuroCAE ED-22B.
Audio Output
A minimum 100 mW into a 500
:
load.
Audio Response Less than 6 dB of variation between 350 and 2500 Hz.
Except the 1020 Hz Ident Tone is at least 20 dB down in
voice mode.
Audio Distortion The distortion in the receiver audio output shall not exceed
10% at all levels up to 100 mW.