TechniSat DIGITRADIO UP 1 Mode D'emploi page 29

Instead of the supplied antenna, the earthing cable (if there is one) can also
be used as an antenna.
Ensure that only trained specialists are permitted to perform the power
connection to domestic wiring. TechniSat accepts no liability for damage or
injuries as a result of incorrect installation.
Ensure that, prior to connecting the radio unit to the mains network or the
domestic wiring, the power is disconnected and secured from being switched
on.
In order to completely switch off the radio if required, or to disconnect it from
the mains network, it should be isolated using a separate switch. The phase
should also be switchable.
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