The Rheinsender ("Rhine transmitter") is an FM radio transmission site for the German Südwestrundfunk regional public broadcasting system.
By the usage of two masts a direction minimum toward the southeast was obtained according to international regulations when working with a transmission power of 600 kilowatts at nighttime.
After transmission power was reduced to 100 kilowatts a direction minimum toward the southeast was no longer necessary and running the transmitter with omnidirectional radiation was possible.
On the remaining radio mast of the Rhine transmitter there are also aerials for FM broadcasting for SWR4 on 94.9 MHz with an output power of 5 kW.
At the site of the demolished radio mast, a further grounded free-standing lattice tower was built in 2003.