Sölvesborg medium wave transmitter
The Sölvesborg mediumwave transmitter (Swedish: Sölvesborg mellanvågsstation) is a radio station at Björkenabben on the peninsula Listerlandet, inaugurated 30 May 1985. Coordinates: 55°59′28″N 14°40′01″E / 55.99111°N 14.66694°E
The station most recently transmitted on 1179 kHz, used by Radio Sweden International (until October 30, 2010), and is owned by Teracom.
The station is situated outside Sölvesborg, far out on the peninsula Listerlandet, right on its outer point Björkenabben at the seaboard of the Baltic Sea. The station takes advantage of a phenomenon called "sea gain", which means that the signal is amplified by the surrounding sea, to improve coverage. Two 135 metres (443 ft) high steel lattice towers work as antennas and are fed halfway up by eight feeders from a feeder house beneath each of the two antennas, where the feeders from the transmitter are connected.
The antenna currencies are phase offset to achieve the directionality that has been decided by international law. One of the antennas is fed with 450 kW and the other one only with 150 kW. The station achieves most of its aiming towards west and north. It must be lowered towards east and south to not interfere with other stations on the same frequency. The station shares the frequency with five other stations in Europe. The transmission coverage area is directional the 70° and 270° azimuths.
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