The Llandyfriog transmitting station is a broadcasting and telecommunications facility located on high ground several kilometres east of the town of Newcastle Emlyn, Ceredigion, South Wales. It was built in 1980 to relay VHF radio and UHF television to Newcastle Emlyn and the area in general. The site has a 25 m self-standing lattice mast erected on land that is itself about 105 m above sea level and acts as an off-air television relay of Preseli, about 20 km to the west.
Since Winter 1981 Llandyfriog has transmitted FM radio, acting as an off-air relay of Blaenplwyf about 50 km to the north. In Spring 1983 the radio services were upgraded to stereo.
Currently, Llandyfriog transmitter provides DVB-T digital television to the area, along with FM radio.
Services listed by frequency
Analogue television
4 November 1977 - 1 November 1982 The station launched with just the original three channels.
FrequencyUHFkWService220.11BBC One Wales250.11HTV Wales280.11BBC Two Wales
1 November 1982 - November 1997 Being in Wales, when Channel 4 arrived in 1982, Llandyfriog transmitted the S4C variant.
FrequencyUHFkWService220.11BBC One Wales250.11HTV Wales280.11BBC Two Wales320.11S4C
November 1997 - 19 August 2009 Llandyfriog was the site of one of the UK's two self-help analogue Channel 5 transmitters.http://stakeholders.ofcom.org.uk/binaries/consultations/selfhelp/summary/selfhelp.pdf (see final page)
FrequencyUHFkWService220.11BBC One Wales250.11ITV1 Wales (HTV Wales until 2002)280.11BBC Two Wales320.11S4C350.11C5
Analogue and digital television
19 August 2009 - 16 September 2009 The UK's digital switchover commenced, mirroring the changes taking place at the parent transmitter at Preseli. Analogue BBC Two Wales closed on channel 28 and ITV1 Wales took over on that frequency for what would be its final 3 weeks of service, vacating channel 25 as it did so. The new digital BBC A multiplex started up at full power in 64-QAM mode on channel 25.
FrequencyUHFkWServiceSystem220.11BBC One WalesPAL System I250.022BBC ADVB-T280.11ITV1 WalesPAL System I320.11S4CPAL System I350.11C5PAL System I
Digital television
23 September 2009 - present All the analogue television services closed and the new digital multiplexes took over on channels 22 and 28.
FrequencyUHFkWOperator220.022Digital 3&4250.022BBC A280.022BBC B
Analogue radio (FM VHF)
Winter 1981 - present FrequencykWService90.1 MHz0.05BBC Radio 292.3 MHz0.05BBC Radio 394.5 MHz0.05BBC Radio Cymru99.7 MHz0.05BBC Radio 1104.4 MHz0.05BBC Radio 4
See also List of masts List of radio stations in the United Kingdom List of tallest buildings and structures in Great Britain
References
External links The Transmission Gallery: Photographs and Information The 'ukfree' listing for Llandyfriog