Download OM3500A - OM Power

Then select if you want to erase all settings
(pressing TUNE) or just one setting value
(SET button).
In the case of resetting a single parameter
use UP / DWN to select which option and
confirm by SET.
5.2.7. MUTE option
When operating the OM3500A with an Icom transceiver without TX INHIBIT for disabling TX, we
recommend blocking of the TX while tuning using ALC control (mainly while operating FM /RTTY/
AM). The ALC Input of your transceiver should be connected to the ALC Out of OM3500A.
Using SET and scrolling UP / DWN select SET
MUTE and confirm it by SET.
Then configure MUTE LEVEL for each band
so it results in no power being transmitted
by TX when performing TUNE procedure.
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