Longwave-transmitter Solec Kujawski
Encyclopedia
The Longwave transmitter Solec Kujawski is a longwave
Longwave
In radio, longwave refers to parts of radio spectrum with relatively long wavelengths. The term is a historic one dating from the early 20th century, when the radio spectrum was considered to consist of long, medium and short wavelengths...

 broadcasting facility of the Polish broadcasting company for the 225 kHz frequency. Its construction was necessary after the collapse of the Warsaw radio mast
Warsaw radio mast
The Warsaw radio mast was the world's tallest structure until its collapse on 8 August 1991. It is the second tallest land-based structure ever built, being surpassed as tallest by the Burj Khalifa, completed in 2010....

 on August 8, 1991 and the resistance of the local population to its reconstruction.
The transmitter was built in 1998/99 on a former military area near Solec Kujawski
Solec Kujawski
Solec Kujawski is a town with 15,505 inhabitants and an area of 176 km², situated 14 kilometres southeast of Bydgoszcz in Poland at . Solec Kujawski belongs to the Kuyavian-Pomeranian Voivodeship...

. The transmitter in this facility has a power of 1200 kilowatts (used 1000 kW) and is equipped with MOSFET
MOSFET
The metal–oxide–semiconductor field-effect transistor is a transistor used for amplifying or switching electronic signals. The basic principle of this kind of transistor was first patented by Julius Edgar Lilienfeld in 1925...

 amplifiers. The carrier frequency is, as in earlier days in the transmitter Konstantynow
Warsaw radio mast
The Warsaw radio mast was the world's tallest structure until its collapse on 8 August 1991. It is the second tallest land-based structure ever built, being surpassed as tallest by the Burj Khalifa, completed in 2010....

, generated by an atomic clock
Atomic clock
An atomic clock is a clock that uses an electronic transition frequency in the microwave, optical, or ultraviolet region of the electromagnetic spectrum of atoms as a frequency standard for its timekeeping element...

.
It uses a directional aerial, consisting of a 330 metre (1083 ft) high and a 289 metre (948 ft) high guyed grounded mast
Guyed mast
A guyed mast is a tall thin vertical structure that receives support from guy lines.Guyed masts are frequently used for radio masts. The mast can either support aerials mounted at its top, or the entire structure itself can function as an antenna ; this is called a mast radiator...

 330 metres apart.
The 330-metre mast is Poland
Poland
Poland , officially the Republic of Poland , is a country in Central Europe bordered by Germany to the west; the Czech Republic and Slovakia to the south; Ukraine, Belarus and Lithuania to the east; and the Baltic Sea and Kaliningrad Oblast, a Russian exclave, to the north...

's eighth tallest construction.

Furthermore there is a freestanding lattice tower
Lattice tower
A lattice tower or truss tower is a freestanding framework tower. They can be used as electricity pylons especially for voltages above 100 kilovolts, as a radio tower or as an observation tower....

close to the station building that is used for directional radio links, which serve among others for passing the program to the station.

External links

  • http://www.pg.gda.pl/~sp2pzh/solec.html
  • http://jerzyjedrzejkiewicz.webpark.pl/str01/gabin-rcn_02.html
  • http://archiwum.wiz.pl/1999/99113500.asp
  • http://www.latozradiem.pl/galeria.aspx?cid=439
  • http://www.skyscraperpage.com/diagrams/?b45027
  • http://www.skyscraperpage.com/diagrams/?b45028
  • Google Maps
  • http://radiopolska.pl/wykaz/pokaz_lokalizacja.php?pid=610
The source of this article is wikipedia, the free encyclopedia.  The text of this article is licensed under the GFDL.
 
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