Lakihegy transmitter

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Lakihegy transmitter
Lakihegyi rádióadótorony
Image of the object
Transmission mast 2015
Basic data
Place: Szigetszentmiklós -Lakihegy
County: pest
Country: Hungary
Coordinates: 47 ° 22 ′ 23.5 ″  N , 19 ° 0 ′ 17.3 ″  E
Use: Telecommunications mast
Accessibility: Transmission mast not open to the public
Mast data
Construction time : 1933
Operating time: since 1933
Last conversion (mast) : 1944-1948
Total height : 314  m
Data on the transmission system
Last modification (antenna) : 2006
Last modification (transmitter) : 2006
Waveband : LW transmitter
Send type: EFR
Further data
further data on the transmitter:
Transmission power : 100  kW
Transmission frequency : 135.6  kHz

Historic transmitter:

Use: Broadcasting station
Waveband: AM station
Broadcast: MW broadcasting
Position map
Lakihegy transmitter (Hungary)
Lakihegy transmitter
Lakihegy transmitter

The Lakihegy transmitter is a transmission tower near Szigetszentmiklós on the Danube island of Csepel in Hungary .

history

The transmitter was built in 1933 according to the plans of Károly Massány as a Blaw-Knox - self-radiating transmission mast with a height of 314 meters south of the Hungarian capital Budapest . At the time of its construction it was the tallest structure in Europe and the tallest steel structure in the world. Today he is in Hungary under monument protection and is still one of the tallest buildings in the country.

The transmitter mast was blown up on November 26, 1944 by the German Wehrmacht fleeing from Southeast Europe as part of the scorched earth strategy . The system was only rebuilt in 1948 and until 1977 the system broadcast the "Budapest I" radio program. It was completely overhauled in 2006 and has been used to transmit the European radio ripple control signal (EFR) ever since .

technology

The transmission mast, like all self-radiating transmission towers, is operated under high voltage . As of 2012, the mast will be used as a reserve for the Solt transmitter on the transmission frequency 540 kHz with 150 kW and in diplex mode to broadcast the European radio ripple control signal (EFR) on 135.6 kHz with 100 kW.

It has a fish belly-like cross-section which is known as the Blaw Knox transmission tower . This type of mast, which is widespread in North America, is only used in Europe for the transmission masts in Lisnagarvey in Northern Ireland , in Wakarel in Bulgaria and Stara Sagora (both in Bulgaria). In addition, there are two other small guyed transmission masts for medium wave of the usual type in Lakihegy.

Another transmitting antenna, consisting of two free-standing towers at 47 ° 22 '25.4 ″  N , 18 ° 58 ′ 59.7 ″  E , is fed from the transmitter building via a 2.1 km long trap line . In addition, there is a guyed steel truss mast for the frequency 873 kHz on the transmitter site.

In 2006, long-wave operation for the ripple control signal of the European radio ripple control (EFR) began broadcasting on the transmitter . This signal is used for the automatic and cross-border remote control of consumers in the supply network of several Central European energy supply companies. The long wave frequency of 135.6 kHz with a transmission power of 100  kW is used for this  . The digitally coded control data are transmitted at a symbol rate of 200  baud according to the communication standard IEC 60870-5 .

  • Base isolator of the Lakihegy transmitter mast, behind it the voting house in 2007

  • Base point isolator and voting house behind it, in 2005

  • Guys in the middle of the mast with guy insulators

  • Interior of the voting house with historical transmitter, 1930s

Individual evidence

  1. ↑ International radio and television chronicle ( Memento from September 29, 2007 in the Internet Archive )
  2. ↑ Europe's boldest antenna construction (PDF; 4.8 MB) Publication on the website of the Deutsches Museum . Retrieved June 2, 2013.

Web links

Commons : Sender Lakihegy  - Collection of pictures, videos and audio files