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The Sölvesborg mediumwave transmitter ((スウェーデン語:Sölvesborg mellanvågsstation)) is a radio station at Björkenabben on the peninsula Listerlandet, inaugurated 30 May 1985. The station most recently transmitted on 1179 kHz, used by Radio Sweden International (until October 30, 2010), and is owned by Teracom. ==Technical specifications== 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 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. The transmitter has a power of 600 kW (PEP) and, together with the antenna gain, the output power is 2000 kW (ERP). Prior to Sölvesbörg, a 100 kW site in Hörby had been in use since 1947, but its equipment had aged significantly. The staff prayed every morning for the old station to start. The Hörby transmitter was scrapped directly after Sölvesborg went into service. On 14 January 1985, construction ended, and shortly after, adjustment began. On 30 May 1985, the station was inaugurated by Televerket Radio together with representatives from Sölvesborgs kommun and Sveriges Radio. To save money, a 10 kW Marconi-transmitter was moved down from the closed mediumwave station in Sundsvall. It served Radio Sweden during daytime. In 1995 the transmitter went out of service with a loud bang literary. After loss of power, a phase dropped, the cooling for the tube and tube socket ceased. The tube socket melt down into the power supply and then the transmitter was beyond repair. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Sölvesborg medium wave transmitter」の詳細全文を読む スポンサード リンク
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