:Caerhendy transmitting station

{{Infobox UK Transmitter |

|name = Caerhendy

|image =

|map_name = Wales Neath Port Talbot

|coordinates = {{coord|51.606292|-3.773067|type:landmark_region:GB|display=inline}}

|height = {{convert|10|m|ft|0}}

|gridref = SS772912

|built = 1980s

|demolished = 2010

|collapsed =

|relay = Wenvoe

|BBC = BBC Wales

|ITV = ITV Cymru Wales

}}

The Caerhendy television relay station was sited at Caerhendy in the Afan Valley, a few kilometres north of Junction 40 on the M4 motorway at Port Talbot. It was originally built in the 1980s as a fill-in relay for UHF analogue television. It was sited at the clubhouse of the soccer ground at Ynys Park and consisted of a mere 3 m aluminium mast carrying a vertically stacked yagi array. The transmitter served about 50 houses in Caerhendy, about 500 m across the valley to the east, which for reasons of geography couldn't get a signal from Mynydd Emroch transmitter just to the south.

Alltwen transmitter re-radiated a signal received off-air from Cwmafan about 2 km farther to the northeast, itself a relay of Wenvoe. It was possibly the lowest ERP officially provided TV relay in the UK, radiating just 0.5 W on each of its four UHF channels.

When it came, the digital switchover process rendered Caerhendy redundant. It is no longer in service.