Garmin AT
Rev --
7-18
GX Service Manual
© 2004 Garmin AT
Test Configuration
The TST-10 test station is used to interface the power and audio I/O between the Comm radio and
the other bench test equipment. Test configuration for the Comm radio test setup is described for
each model in the TST-10 User’s Manual, 560-0399-00.
Transmit Presets for HP8920
1. Press
PRESET
on the HP8920:
2. Press
the
TX
function key from the SCREEN CONTROL.
3. Using the CURSOR CONTROL knob and the DATA
keypad set:
TX TEST screen
Tune Mode
AUTO MANUAL
Tune Freq
127.5 MHz
TX Pwr Zero
Zero
Input Port
RF IN/ANT
IF Filter
15 kHz
Ext TX Key
On/off
AF Anl In
AM Demod
Filter1
50 Hz HPF
Filter2
15 kHz LPF
De-EMPHASIS Off
Detector
Pk ± 2
AF GEN1 Freq
1 kHz
AF GEN LVL
100 mV
TX Freq Error
PPM
4. When conducting the transmitter performance test, do not use local frequencies such as tower,
ground ATIS and
do not use the emergency frequency - 121.5 MHz.
Содержание APOLLO GX SERIES
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