Ravensburg-Horgenzell transmitter

Ravensburg-Horgenzell transmitter was a mediumwave broadcasting facility of Deutsche Telekom used for transmitting the program of Deutschlandfunk on the area of community Horgenzell northwest of Ravensburg in Baden-Württemberg.

It was inaugurated on August 23, 1951, and used until 1959 for transmitting the radio programme of SWF with a transmission power of 40 kW on 1538 kHz.

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.

However a new radiation minimum toward east-southeast in the direction of Timișoara in Romania, where a station on the same frequency works, was necessary according to the waveplan of Geneva.

With this antenna configuration operation with 100 kW was possible 24 hours per day, at daytime with omnidirectional and at nighttime with directional radiation.