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M3SR Series 4100
3.7.3.2
Switching ATU Silent Tuning On or Off
Softkey
3.172
Softkey Type
Toggle
Switching ATU Silent Tuning On or Off
Description
1.
Press softkey 'ATU SIL' to toggle ATU si-
lent tuning on/off.
Possible values:
•
ON
•
OFF
Default setting:
ON
In almost all practical situations it is recom-
mended to activate ATU silent tuning, where
the ATU will be retuned only by pressing the
'ATU Tune' softkey.
Only where ATU retuning is required with ev-
ery PTT, set this softkey to OFF instead (for in-
stance if the antenna is permanently moving
and its antenna impedance is changing).
Operating Manual 6175.4760.02 – 01
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