Brecon VHF-FM transmitting station

Brecon VHF FM
Mast height 15 metres (48 ft)
Coordinates 51°57′35″N 3°24′44″W / 51.9596°N 3.4123°W / 51.9596; -3.4123Coordinates: 51°57′35″N 3°24′44″W / 51.9596°N 3.4123°W / 51.9596; -3.4123
Grid reference SO030299
Built 1966
Relay of Wenvoe

The Brecon VHF FM transmitting station was originally built by the BBC in 1965[1] as a relay for VHF FM radio. It consists of a pair of 15 m wooden telegraph poles - one carrying the transmitting antennas, and the other carrying receiving aerials pointed at Wenvoe transmitting station near Cardiff. These stand on land at Pencrug Farm, about 244 m above sea level.

The station does not radiate television, and never did. TV for the area comes from a different site at Brecon transmitting station a few km to the east.

Channels listed by frequency

FM Radio

20 December 1965 - January 1977

As built, the transmitter re-radiated Wenvoe's three original FM transmissions with horizontal polarisation and with a radiation pattern favouring the town of Brecon.

Frequency kW Service
88.9 MHz 0.01 BBC Light Programme
91.1 MHz 0.01 BBC Third Programme
93.3 MHz 0.01 BBC Welsh Home Service

January 1977 - 1989

The launch of Radio Cymru saw the replacement across Wales of the English-language Radio 4 Wales service.

Frequency kW Service
88.9 MHz 0.01 BBC Radio 1 & 2
91.1 MHz 0.01 BBC Radio 3
93.3 MHz 0.01 BBC Radio Cymru

1989 - present

Bandplan changes allowed more frequencies in Band II, Radio 1 gained its own frequency and National Radio 4 could be transmitted. About this time, the transmitting aerials were changed to the present configuration, radiating a slant-polarisation signal in a fairly omnidirectional pattern using a Lindenblad Array[2]

Frequency kW Service
88.9 MHz 0.01 BBC Radio 2
91.1 MHz 0.01 BBC Radio 3
93.3 MHz 0.01 BBC Radio Cymru
98.5 MHz 0.01 BBC Radio 1
104.7 MHz 0.01 BBC Radio 4

References

  1. ↑ http://downloads.bbc.co.uk/rd/pubs/reports/1966-17.pdf
  2. ↑ http://www.amsat.org/amsat/articles/w6shp/lindy.html

External links

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