400W Series Installation Manual Page 1-7190-00356-02 Rev. G1.4.5 VOR Specifications (GNS 430W Only)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 Hzmodulations.d) When the level of a standard VOR deviation test signalproduces less than a 50% of standard deflection.AGC Characteristics From -99 dBm to -13 dBm input of a Standard VOR AudioTest Signal, audio output levels shall not vary more than 3dB.Spurious Response Greater than 80 dB.VOR OBS Bearing Accuracy The bearing information as presented to the pilot does nothave an error in excess of 2.7° as specified by RTCA DO-196and EuroCAE ED-22B.Audio Output A minimum 100 mW into a 500 Ω 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 invoice mode.Audio Distortion The distortion in the receiver audio output does not exceed10% at all levels up to 100 mW.1.4.6 LOC Specifications (GNS 430W Only)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 LOC Course Deviation Flag must be flagged:a) in the absence of an RF signal.b) When either the 90 or 150 Hz modulating signals isremoved and the other is maintained at its normal 20%.c) In the absence of both 90 and 150 Hz modulation.d) When the level of a standard localizer deviation testsignal produces less than a 50% of standard deflection.AGC Characteristics From -86 dBm and -33 dBm input of a Standard VOR AudioTest Signal, audio output levels does not vary more than 3dB.Selectivity Nose Bandwidth: The input signal level required to producethe reference AGC voltage does not vary more than 6 dBover the input signal frequency range of ± 9 kHz from theassigned channel frequency.Skirt Bandwidth: The input signal level required to producereference AGC voltage will be at least 70 dB greater than thelevel required to produce reference AGC voltage at theassigned channel frequency at ± 36 kHz from the assignedchannel frequency.Spurious Response Greater than 80 dB.Centering Accuracy Typical 0 ± 3 mV (Max error 9.9 mV per RTCA DO-195).Audio Output A minimum 100 mW into a 500 Ω 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 invoice mode.Audio Distortion The distortion in the receiver audio output does not exceed10% at all levels up to 100 mW.
