The Llandyfriog transmitting station is a

broadcasting Broadcasting is the data distribution, distribution of sound, audio audiovisual content to dispersed audiences via a electronic medium (communication), mass communications medium, typically one using the electromagnetic spectrum (radio waves), ...

and

telecommunications Telecommunication, often used in its plural form or abbreviated as telecom, is the transmission of information over a distance using electronic means, typically through cables, radio waves, or other communication technologies. These means of ...

facility located on high ground several kilometres east of the town of

Newcastle Emlyn Newcastle Emlyn () is a town and Community (Wales), community on the River Teifi, in West Wales. The community is wholly in Carmarthenshire, but the built up area also includes Adpar north of the Teifi, which is in Ceredigion. Adpar was formerl ...

Ceredigion Ceredigion (), historically Cardiganshire (, ), is a Principal areas of Wales, county in the West Wales, west of Wales. It borders Gwynedd across the River Dyfi, Dyfi estuary to the north, Powys to the east, Carmarthenshire and Pembrokeshire t ...

, 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 Blaenplwyf (''Pontllanio'' previously) is a village in Ceredigion, to the southwest of Aberystwyth. It is noted for the Blaenplwyf transmitting station, which serves Aberystwyth and Cardigan Bay area. It was originally built by the BBC in 1956– ...

about 50 km to the north. In Spring 1983 the radio services were upgraded to stereo. Currently, Llandyfriog transmitter provides

DVB-T DVB-T, short for Digital Video Broadcasting – Terrestrial, is the DVB European-based consortium standard for the broadcast transmission of digital terrestrial television that was first published in 1997 and first broadcast in Singapore in Fe ...

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.

1 November 1982 - November 1997

Being in Wales, when Channel 4 arrived in 1982, Llandyfriog transmitted the

S4C S4C (, ''Sianel Pedwar Cymru'', meaning ''Channel Four Wales'') is a Welsh language free-to-air public broadcast television channel. Launched on 1 November 1982, it was the first television channel to be aimed specifically at a Welsh-speakin ...

variant.

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)

Analogue and digital television

19 August 2009 - 16 September 2009

The UK's

digital switchover Digital usually refers to something using discrete digits, often binary digits. Businesses *Digital bank, a form of financial institution *Digital Equipment Corporation (DEC) or Digital, a computer company *Digital Research (DR or DRI), a software ...

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.

Digital television

23 September 2009 - present

All the analogue television services closed and the new digital multiplexes took over on channels 22 and 28.

Analogue radio (FM VHF)

Winter 1981 - present

References

External links

The Transmission Gallery: Photographs and Information

The 'ukfree' listing for Llandyfriog
{{Television transmitters in the UK Transmitter sites in Wales