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AF (Speaker icon)
Turn the mouse wheel over the slide bar or drag or click to adjust the receive volume.
Each time you click the speaker icon, MUTE & MUTE cancel will switch.
RF (RF GAIN)
Turn the mouse wheel over the slide bar or drag or click to adjust the RF gain.
Right-click on RF to select whether to adjust RF gain or SQL level.
SHIFT
Click:
When the button is blue, the IF filter shift frequency can be changed by operating the
mouse in the filter function display area.
Click & Hold:
The IF filter shift frequency returns to 0 Hz.
When the radio wave format cannot be shifted, the button is grayed out.
WIDTH
Click:
When the button is blue, you can change the IF filter bandwidth by operating the mouse in
the filter function display area.
Click & Hold:
The IF filter bandwidth returns to the initial value.
The button is grayed out for radio wave formats where the bandwidth cannot be changed.