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TRC-70
140
MAT-100 (AUTOMATIC ANTENNA TUNER}
Manual Tuning
If the
control
circuit
in the
MAT-100
does
not
function properly , should an emergency arise, you
can still transmit on 2182 kHz ;The MARINE MOBILE
EMERGENCY CHANNEL by switching the coupler to
MANUAL OPERATION.
1. Turn the radiotelephone power switch off.
2. Remove the top cover of the antenna coupler.
3. Confirm S4 is in AUTO position.
4..Turn the radiotelephone power switch on.
Press the 2182 key and then the TUNE key.
5. After completing the tuning, D48 LED indicator
of the antenna coupler will fight.
6. Record the status of Dito D22 LED indicators on
or off.
7. Set the S4 slide switch to MANUAL position.
8. Set the S1 to S3 dip switch as the same position as
step 6.
9. Change the S4 switch back forth between AUTO
and MANUAL
position to confirm
no change
in
the Dito D22 LED indicators.
10. Set S4 to be AUTO position.
Ti. Attach the top cover of the antenna coupler.
OL
tr)
$4
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