Transmitter Berlin-Britz
Encyclopedia
Transmitter Berlin-Britz is a broadcasting
facility for medium wave, shortwave
and FM
on the site of a former tree nursery in Berlin-Britz. It was established in 1946 and until 1993 it was the most important transmitter of RIAS
. It is now used by Deutschlandradio
.
The Berlin-Britz transmitter initially used a wire supported between two 30 metres (98 ft) tall wooden poles. This aerial was replaced in 1947 by a 60 m (197 ft) guyed insulated steel framework mast. This mast was replaced in turn in 1948 by two guyed insulated steel framework masts, each with a height of 100 m (328 ft) and which still exist today. These masts were extended in subsequent years so that today they are 160 m (525 ft) and 144 m (472 ft) tall and carry FM radio broadcasting antennas.
Since 1949 the Berlin-Britz transmitter has also been a shortwave transmission facility. A dipole aerial
aligned in east-west direction was installed. A second shortwave broadcasting aerial in the form of a dipole with whole length was built in 1983.
A cross dipole aerial for the medium wave frequency 990 kHz was built in 1978 to provide better coverage to the former East Germany for RIAS’ first channel. This aerial for circular polarization radiated vertically in the ionosphere and permitted good reception of RIAS 1 in the entire former East Germany. This aerial was mounted on five guyed masts each with a height of 30.5 m (100 ft) and was shutdown at the end of 1995.
Broadcasting
Broadcasting is the distribution of audio and video content to a dispersed audience via any audio visual medium. Receiving parties may include the general public or a relatively large subset of thereof...
facility for medium wave, shortwave
Shortwave
Shortwave radio refers to the upper MF and all of the HF portion of the radio spectrum, between 1,800–30,000 kHz. Shortwave radio received its name because the wavelengths in this band are shorter than 200 m which marked the original upper limit of the medium frequency band first used...
and FM
Frequency modulation
In telecommunications and signal processing, frequency modulation conveys information over a carrier wave by varying its instantaneous frequency. This contrasts with amplitude modulation, in which the amplitude of the carrier is varied while its frequency remains constant...
on the site of a former tree nursery in Berlin-Britz. It was established in 1946 and until 1993 it was the most important transmitter of RIAS
Rundfunk im amerikanischen Sektor
RIAS was a radio and television station in the American Sector of Berlin during the Cold War. It was founded by the US occupational authorities after World War II in 1946 to provide the German population in and around Berlin with news and political reporting and was initially only broadcast on...
. It is now used by Deutschlandradio
Deutschlandradio
Deutschlandradio is a national German public broadcasting radio broadcaster. It operates four national networks, Deutschlandfunk, Deutschlandradio Kultur, Dokumente und Debatten and DRadio Wissen....
.
The Berlin-Britz transmitter initially used a wire supported between two 30 metres (98 ft) tall wooden poles. This aerial was replaced in 1947 by a 60 m (197 ft) guyed insulated steel framework mast. This mast was replaced in turn in 1948 by two guyed insulated steel framework masts, each with a height of 100 m (328 ft) and which still exist today. These masts were extended in subsequent years so that today they are 160 m (525 ft) and 144 m (472 ft) tall and carry FM radio broadcasting antennas.
Since 1949 the Berlin-Britz transmitter has also been a shortwave transmission facility. A dipole aerial
Dipole antenna
A dipole antenna is a radio antenna that can be made of a simple wire, with a center-fed driven element. It consists of two metal conductors of rod or wire, oriented parallel and collinear with each other , with a small space between them. The radio frequency voltage is applied to the antenna at...
aligned in east-west direction was installed. A second shortwave broadcasting aerial in the form of a dipole with whole length was built in 1983.
A cross dipole aerial for the medium wave frequency 990 kHz was built in 1978 to provide better coverage to the former East Germany for RIAS’ first channel. This aerial for circular polarization radiated vertically in the ionosphere and permitted good reception of RIAS 1 in the entire former East Germany. This aerial was mounted on five guyed masts each with a height of 30.5 m (100 ft) and was shutdown at the end of 1995.
External links
- http://www.skyscraperpage.com/diagrams/?b45609
- http://www.skyscraperpage.com/diagrams/?b45610