TechniSat DIGITRADIO 231 OD Manual page 123

> Use the TUNING/SKIP buttons to select the menu item [Scan settings] and press
the SELECT button.
> Use the TUNING/SKIP buttons to select whether the scan should only stop for
stations with a strong signal [Strong Stations Only] or for all stations (including
stations with a weak signal) [All Stations].
With the All Stations setting, the scan stops automatically upon detecting each
available station. This can result in weak stations being played with background
noise.
> Then press the SELECT button to save.
> Press the INFO/MENU button several times to exit the setting.
9.6 Audio settings
> Open the main menu by pressing and holding the INFO/MENU button.
> Use the TUNING/SKIP buttons to select the menu item [Audio settings] and
press the SELECT button.
> Use SELECT or TUNING/SKIP to select the [Stereo available] or [Mono only] item
to play back in stereo or only in mono sound when the FM reception is weak.
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