The Cremlingen transmitter is a large mediumwave transmission facility established in 1962 for transmitting the programme of Deutschlandfunk on 756 kHz near Cremlingen-Abbenrode. It was also known as Sender Braunschweig or Sender Königslutter.
The first transmitter was installed in 1962. It transmitted the program of Deutschlandfunk on 755 kHz at a power of 100 kW and used as its aerial a 137-metre-high guyed steel framework mast. The transmitter power was raised to 200 kW one year later, but it only operated during daytime for some time.
Wikipedia https://en.wikipedia.org/wiki/Cremlingen_transmitter
Coordinates 52°17'35.165" N 10°43'42.743" E