Kaliakra transmitter
Encyclopedia
Kaliakra transmitter is a huge facility for mediumwave broadcasting, which was built after 1988 by former Soviet Union
as relay transmitter for Southeast Europe. After the collapse of communism in 1989, there was no requirement for this facility and work was stopped. At that point of time 9 of the planned 10 masts were already completed. All masts of the station are grounded guyed lattice masts with triangular cross section, equipped with a cage antenna. Their height varies between 145 and 172 metres. The masts should either work as directional antenna
with low pattern by using 2 masts or as high directive antenna by using 8 masts. At time of work termination some masts were already equipped with cage antennas, while others remained nude. Construction work of the 10th mast has already started, but on-hold.
The broadcasting company of Bulgaria had no interest for using the facility as it has already several well-equipped high power mediumwave broadcasting facilities in several parts of Bulgaria (e.g. in Vakarel, Pleven
and Vidin
). Also other foreign services were not interested in using the facility.
In 2001 the station was experimentally used for longwave broadcasting of Bulgarian broadcasting company, obviously without good results (it uses further the Blaw-Knox radiator at Vakarel transmitter). In 2005 on 2 masts FM broadcasting antennas were installed, which are used by Radio Varna on 98.2 MHz with 500 W ERP and by Darik Kaliakra on 99.3 MHz with 1 kW ERP.
Soviet Union
The Soviet Union , officially the Union of Soviet Socialist Republics , was a constitutionally socialist state that existed in Eurasia between 1922 and 1991....
as relay transmitter for Southeast Europe. After the collapse of communism in 1989, there was no requirement for this facility and work was stopped. At that point of time 9 of the planned 10 masts were already completed. All masts of the station are grounded guyed lattice masts with triangular cross section, equipped with a cage antenna. Their height varies between 145 and 172 metres. The masts should either work as directional antenna
Directional antenna
A directional antenna or beam antenna is an antenna which radiates greater power in one or more directions allowing for increased performance on transmit and receive and reduced interference from unwanted sources....
with low pattern by using 2 masts or as high directive antenna by using 8 masts. At time of work termination some masts were already equipped with cage antennas, while others remained nude. Construction work of the 10th mast has already started, but on-hold.
The broadcasting company of Bulgaria had no interest for using the facility as it has already several well-equipped high power mediumwave broadcasting facilities in several parts of Bulgaria (e.g. in Vakarel, Pleven
Pleven
Pleven is the seventh most populous city in Bulgaria. Located in the northern part of the country, it is the administrative centre of Pleven Province, as well as of the subordinate Pleven municipality...
and Vidin
Vidin
Vidin is a port town on the southern bank of the Danube in northwestern Bulgaria. It is close to the borders with Serbia and Romania, and is also the administrative centre of Vidin Province, as well as of the Metropolitan of Vidin...
). Also other foreign services were not interested in using the facility.
In 2001 the station was experimentally used for longwave broadcasting of Bulgarian broadcasting company, obviously without good results (it uses further the Blaw-Knox radiator at Vakarel transmitter). In 2005 on 2 masts FM broadcasting antennas were installed, which are used by Radio Varna on 98.2 MHz with 500 W ERP and by Darik Kaliakra on 99.3 MHz with 1 kW ERP.
External links
- http://www.worldofradio.com/dxld7069.txt
- http://www.predavatel.com/bg/6/kav.htm