Comm Transceiver Assembly Alignment; Initial Control Settings; Discrete Adjustment - Garmin GNC400 Alignment Procedure

3. COMM TRANSCEIVER ASSEMBLY ALIGNMENT

This section describes the step-by-step procedure used to perform a GNC400 COMM transceiver
assembly alignment. Refer to the GNC 400 COMM XCVR MINIMUM PERFORMANCE
SPECIFICATION (MPS) Garmin P/N 004-00044-03 for specifications.
The unit should be connected as outlined in section 2.2.

3.1 Initial Control Settings

3.1.1 Discrete Adjustment

L104 Pre-selector Pole 1 coil
L106 Pre-selector Pole 2 coil
L109 Pre-selector Pole 3 coil
L111 Pre-selector Pole 4 coil
L200 8.33 kHz Xtal filter Input
L201 25 kHz Xtal filter Input
L202 8.33 kHz Xtal filter Output
L203 25 kHz Xtal filter Output
T200 IF AMP Input Match
T201 IF AMP Output Match
C300 Synthesizer Ref. Osc.
Figure 1
Mid - range as Factory preset
Mid - range as Factory preset
Mid - range as Factory preset
Mid - range as Factory preset
Mid - range as Factory preset
Mid - range as Factory preset
Mid - range as Factory preset
Mid - range as Factory preset
Mid - range as Factory preset
Mid - range as Factory preset
Mid - range as Factory preset
GNC 400 COMM TRANSCEIVER ALIGNMENT PROCEDURE
P/N 005-00051-55 REV. T
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