Technical Specifications
The two transmitters could be used either independently or together, and featured a CFTH specialty, steam-cooled tubes called "Vapotrones". They had a power efficiency of 66%.
The antenna system was designed to produce a ground wave intended to prevent interference with distant transmitters on the same frequency. Unfortunately, the transmitter also broadcast a signal at a 40° angle; this did not affect reception, but its effect on distant stations is unknown. Programs were sent to the facility by telephone cable and were amplified before transmission. The centre antenna, 250 metres in height, was located near the station and the secondary antennas, 200 metres each in height, were arranged in a ring surrounding the station; each secondary antenna was 630 metres from the centre antenna and 630 metres from its neighbours.
Construction was completed in 1961 and the station was officially inaugurated by HRH Prince Bertil in May of that year. The station began broadcasting in 1962, after the necessary tests and adjustments had been conducted.
Read more about this topic: Orlunda Radio Transmitter
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