Garmin GNS 530W Installation Manual page 20

1.4.7 Glideslope Specifications (GNS 530W Only)
Sensitivity
Centering Accuracy
Selectivity
Standard Deflection
Flag
Page 1-8
Rev. D
-87 dBm or less for 60% of standard deflection.
0 ±.0091 ddm or 0 ±7.8 mV.
The course deviation is 0 ddm ± .0091 ddm when using the
Glideslope Centering Test Signal as the RF frequency is varied ±17
kHz from the assigned channel.
At frequencies displaced by ±132 kHz or greater, the input signal is
at least 60 dB down.
a) With a standard deflection 'FLY DOWN' condition (90 Hz
dominant), the output is -78 mV ±7.8 mV.
b) With a standard deflection 'FLY UP' condition (150 Hz
dominant), the output is +78 mV ±7.8 mV.
The unit Flags:
a) When the level of a standard deviation test signal produces
50% or less of standard deflection of the deviation indicator.
b) In the absence of 150 Hz modulation.
c) In the absence of 90 Hz modulation.
d) In the absence of both 90 Hz and 150 Hz modulation.
e) In the absence of RF.
500W Series Installation Manual
190-00357-02