TechniSat DIGITRADIO BT 1 Operating Instructions Manual page 33

> Use the <, > buttons to select a channel (5A to 13F) and press the OK button.
The signal strength is now shown on the display. If a DAB+ station is received
on a channel, the ensemble name of the station is displayed. The aerial can
now be aligned for maximum signal strength.
Transmitters whose signal strength is below the required minimum signal
strength are not transmitting a sufficient signal. If necessary, realign the aerial
or change the location.
If there are stations on the set frequency or channel that have not yet been
saved in the station list, these will now also be saved.
6.10 Volume control (DRC)
The volume adjustment menu item is used to set the compression rate, which
compensates for dynamic fluctuations and the associated volume variations.
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