Garmin GNC 420, Руководство по установке

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400 SERIES INSTALLATION MANUAL Page 1-5
190-00140-02 Rev Q
1.3.5 VOR Specifications (GNS 430 Only)
Regulatory Compliance TSO C40c, JTSO-2C40c (ETSO-2C40c for the GNS 430A),
RTCA DO-196, EuroCAE ED-22B
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.