 As antenna, it used a 120 metre tall guyed ground-fed lattice steel mast radiator at 47°47'10" N and 9°31'16" E.

In 1964 after Bodenseesender took over its task, it was given from SWF to German Federal Post (Deutsche Bundespost) and its frequency was changed to 755 kHz, in order to form a single frequency network with Cremlingen transmitter near Brunswick in Lower Saxony.Because this frequency, which allowed a much better groundwave propagation, was also used by Sottens transmitter in Switzerland, close to its 120 metre tall mast radiator, an 80 metre tall guyed reflector mast had to be built.In 1968 its transmission power was increased from 20 kW to 100 kW.