| 词条 | Caerhendy transmitting station | ||||||||||||||||||||
| 释义 |
|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 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. Channels listed by frequencyAnalogue television1980s - March 2010Caerhendy (being in Wales) transmitted the S4C variant of Channel 4.
ReferencesExternal links
2 : Transmitter sites in Wales|Wenvoe UHF 625-line Transmitter Group |
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