| 45 metres (148 ft)|
The Abercraf television relay station is sited on high ground to the east of the village of Abercraf in the upper Swansea Valley, though it is actually closer to Coelbren than to Abercraf itself. It was originally built in the 1980s as a fill-in relay for UHF analogue colour television covering the communities of Abercraf, Coelbren, Penycae and Ynyswen. It consists of a 45 m self-supporting lattice mast standing on a hillside which is itself about 270 m above sea level. The transmissions are beamed southwest and northwest. The Abercraf transmission station is owned and operated by Crown Castle.
Abercraf transmitter re-radiates the signal received off-air from Carmel about 20 km to the west. When it came, the digital switchover process for Abercraf duplicated the timing at Carmel with the first stage taking place on 26 August 2009 and with the second stage being completed on 23 September 2009. After the switchover process, analogue channels had ceased broadcasting permanently and the Freeview digital TV services were radiated at an ERP of 18 W each.
Abercraf transmitting station Wikipedia
Abercraf (being in Wales) transmitted the S4C variant of Channel 4.
The UK's digital switchover commenced at Carmel (and therefore at Abercraf and all its other relays) on 26 August 2009. Analogue BBC Two Wales on channel 28 was first to close, and ITV Wales was moved from channel 25 to channel 28 for its last month of service. Channel 25 was replaced by the new digital BBC A mux which started up in 64-QAM and at full power (i.e. 25 W).
The remaining analogue TV services were closed down and the digital multiplexes took over on the original analogue channels' frequencies.