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Squelch Operation (prior to firmware v 1.75):
1. Apply a long press on the [Multi-function Adjustment Knob] to enter the user
defined function menu. Rotate the main knob to select the SQL Level option.
2. Rotate the [Multi-function Adjustment Knob] to set the squelch muting level.
At the same time, the muting level will show on the S meter.
3. Momentarily press the button below the SAVE label at the bottom of the
screen to select and exit.
■ The muting strength gradually increases from S1 ~S9, corresponding to signal
strength. For example, when the muting level is set to be S3. it indicates that
the speaker will only let sound through when the signal strength is more than
S3. Otherwise, the speaker will remain silent.
Multi-function Adjustment Knob (from F/W version 1.75 onwards).
The multi-function knob has several functions than can be customized.
By default, turning the knob will tune the radio in 100kHz frequency
steps. (this is the most common use)
However, a momentary press of the knob allows adjustment of the
receiving filter.
Giving the Multi-Function knob a longer press, enters the user defined
functions menu.
Multi-function
adjustment knob
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