Loc Specifications (Gtn 650 Only) - Garmin GTN 625 Installation Manual

1.3.7

LOC Specifications (GTN 650 Only)

Characteristics
Receiver Audio Sensitivity
Course Deviation Sensitivity
Flag
AGC Characteristics
Selectivity
Standard Deflection
Spurious Response
Centering Accuracy
Audio Output
Audio Response
Audio Distortion
190-01004-02
Rev. F
At -103.5 dBm (S+N)/N is not less than 6 dB.
At -103.5 dBm, deviation output is not to be less than 60% of standard
deflection when a LOC deviation test signal is applied.
The VOR/LOC Course Deviation Flag is flagged when:

RF signals are absent.

9960 Hz modulation is absent.

one of the two 30 Hz modulations is absent.

the level of a standard VOR deviation test signal produces
less than a 50% of standard deflection.
From -99 dBm to -13 dBm input of a Standard VOR Audio Test Signal,
audio output level does not vary more than 3 dB.
6 dB BW is greater than 9 kHz
69 dB BW is less than 36 kHz
With a standard deflection 'FLY LEFT' condition (90 Hz dominant), the
output is +90 mV ± 9 mV.
With a standard deflection 'FLY RIGHT' condition (150 Hz dominant),
the output is -90 mV ± 9 mV.
Greater than 60 dB.
0 ±0.01023 ddm or 0 ±9.9 mV.
Up to 100 mW into a 500 load.
Less than 6 dB of variation between 350 and 2500 Hz. In voice mode,
an IDENT tone of 1020 Hz Ident Tone is attenuated at least 20 dB
down.
The distortion in the receiver audio output does not exceed 10% at all
levels up to 100 mW.
GTN 625/635/650 TSO Installation Manual
Specifications
Page 1-9