Marnach Transmitter - Overview

Overview

In 1956 the transmission power of Marnach mediumwave transmitter, which worked until 1978 on 1439 kHz and then on 1440 kHz was increased to 350 kW after the mediumwave transmitter of Junglinster was moved to Marnach. On July 15, 1957 the German speaking program, which rapidly became very popular, started. In April 1958 the regular program service started, which was a German programme in the daytime and the famous English program “2-0-8” in the evening and nighttime.

In 1962 an FM transmitter was also installed at the site of Marnach transmitter. For this transmitter, a further mast was built. In 1965 the transmission power of the mediumwave transmitter was increased to 600 kW and in 1968 to 1200 kW, resulting in Marnach mediumwave transmitter becoming the most powerful privately owned mediumwave transmitter in the world at that time.

On January 17, 1969 the FM transmission mast of the station collapsed and damaged the transmitter building. For the FM transmitters, which were planned to move in 1970 to the newly built Hosingen FM and TV mast, a temporary antenna was installed, which was dismantled after the Hosingen transmitter went in service.

In 1969 a 60-metre tall guyed ground-fed antenna mast was built, which, with its stronger skywave, allowed a better radio supply of the British Isles at night as the prevailing directional antenna. This antenna however was expanded in the 1970s to a system consisting of 5 105 metre tall guyed masts. Nevertheless it did not work as desired and later it was rebuilt again to the former three-mast antenna. The 60-metre mast used for night transmissions was given a reflector in form of a free-standing 65 metre tall lattice tower with triangular cross section in 1976 for bundling the transmitted power to the British Isles at night.

On December 30, 1991 the transmission of the English-speaking program of Radio Luxemburg was cancelled, while the transmitter remained in use for the German program "RTL Oldie Radio". Later the transmitter was often hired for other program suppliers. One of these suppliers was the Chinese foreign broadcasting service, which used it for transmitting programmes in foreign languages at the evening and the German pop music radio MEGARADIO, which used it in 2002/03 in the daytime. In spring 2004 Marnach mediumwave transmitter worked first time in DRM-mode. At the beginning of 2005, it started regular DRM transmissions in the daytime, while at night the transmitter is still operated in the old AM mode, as there are not many radios available, which can demodulate programmes in DRM mode.