The Sender Donebach was a 500-kilowatt long wave radio transmitter operating on 153 kHz and transmitting the program of German public broadcaster Deutschlandfunk. The facility, which was the property of Media Broadcast, was built between 1965 and 1967 on a former airfield, and entered service on March 10, 1967.
It was part of an omnidirectional aerial, consisting of four 200-metre-high radio masts, which were connected using wires on their tops. The middle mast was fed via radio power. This very efficient transmission aerial led to interference with the Romanian transmitter Braşov on the same frequency, so only 70 kilowatts of power were used, instead of 250. But even with this reduced power, interference to Braşov occurred, so in 1972 the radio facility Donebach was rebuilt as a directional aerial with a minimum towards Braşov. Therefore, two radio masts were taken down and the remaining two were rebuilt as umbrella aerials. This made a transmission power of 250 kilowatts possible.
The Geneva Frequency Plan of 1975 set new power limits to the Donebach transmitter and now there was a daytime operation with 500 kilowatts and a night time operation at night time.
This facility was remarkable because
the frequency of the carrier was derived from a rubidium atomic clock, which was in the station building. It was as the carrier frequency of DCF77, a standard frequency.
the 363-metre-high masts were the second tallest structures in Germany, just behind the Fernsehturm Berlin.
sender, donebach, this, article, does, cite, sources, please, help, improve, this, article, adding, citations, reliable, sources, unsourced, material, challenged, removed, find, sources, news, newspapers, books, scholar, jstor, november, 2013, learn, when, rem. This article does not cite any sources Please help improve this article by adding citations to reliable sources Unsourced material may be challenged and removed Find sources Sender Donebach news newspapers books scholar JSTOR November 2013 Learn how and when to remove this template message The Sender Donebach was a 500 kilowatt long wave radio transmitter operating on 153 kHz and transmitting the program of German public broadcaster Deutschlandfunk The facility which was the property of Media Broadcast was built between 1965 and 1967 on a former airfield and entered service on March 10 1967 Donebach transmitter Mast 2Donebach Radio MastsGeneral informationStatusshutdown in 2014 and demolished in 2018Typegrounded upfed mast radiatorLocationDonebach Baden Wurttemberg GermanyCoordinates49 33 43 N 9 10 28 E 49 56194 N 9 17444 E 49 56194 9 17444Completed1982Demolished02 03 2018Height363 m 1 191 ft Design and constructionMain contractorDeutsche BundespostIt was part of an omnidirectional aerial consisting of four 200 metre high radio masts which were connected using wires on their tops The middle mast was fed via radio power This very efficient transmission aerial led to interference with the Romanian transmitter Brasov on the same frequency so only 70 kilowatts of power were used instead of 250 But even with this reduced power interference to Brasov occurred so in 1972 the radio facility Donebach was rebuilt as a directional aerial with a minimum towards Brasov Therefore two radio masts were taken down and the remaining two were rebuilt as umbrella aerials This made a transmission power of 250 kilowatts possible The Geneva Frequency Plan of 1975 set new power limits to the Donebach transmitter and now there was a daytime operation with 500 kilowatts and a night time operation at night time This facility was remarkable because the frequency of the carrier was derived from a rubidium atomic clock which was in the station building It was as the carrier frequency of DCF77 a standard frequency the 363 metre high masts were the second tallest structures in Germany just behind the Fernsehturm Berlin Geographical coordinates of the masts edit49 33 36 N 9 10 55 E 49 56000 N 9 18194 E 49 56000 9 18194 49 33 43 N 9 10 28 E 49 56194 N 9 17444 E 49 56194 9 17444Roofing amp Base Jumping editThis Antenna was a popular spot among climbers and Base Jumpers External links editSendemasten Donebach at Structurae http www skyscraperpage com diagrams b46450 http www skyscraperpage com diagrams b46451 Google maps satellite picture Retrieved from https en wikipedia org w index php title Sender Donebach amp oldid 1210023512, wikipedia, wiki, book, books, library,
