Freeview Light on the Alltwen (Neath Port Talbot, Wales) transmitter
 | Google map |  | Bing map |  | Google Earth |  | 51.719,-3.860 or 51°43'9"N 3°51'37"W |  | SA8 4AA |
The symbol shows the location of the Alltwen (Neath Port Talbot, Wales) transmitter which serves 2,000 homes. The bright green areas shown where the signal from this transmitter is strong, dark green areas are poorer signals. Those parts shown in yellow may have interference on the same frequency from other masts.
This transmitter has no current reported problems
The BBC and Digital UK report there are no faults or engineering work on the Alltwen (Neath Port Talbot, Wales) transmitter._______
Digital television services are broadcast on a multiplexes (or Mux) where many stations occupy a single broadcast frequency, as shown below.
H/V: aerial position (horizontal or vertical)
The Alltwen (Neath Port Talbot, Wales) mast is a public service broadcasting (PSB) transmitter, it does not provide these commercial (COM) channels: U&Yesterday, 4seven, 5Action, 5STAR, 5USA, Al Jazeera Eng, Al Jazeera English, Blaze, Blaze +1, Challenge, Channel 5 +1, DMAX, E4 Extra, YAAAS!, Film4 +1, Food Network, FRANCE 24 (in English), GREAT! action, GREAT! christmas, GREAT! movies, GREAT! romance mix, HGTV, HobbyMaker, ITV2 +1, ITV3 +1, ITV4 +1, ITVBe +1, Legend, PBS America, Quest +1, Quest Red, Really, Sky Mix, Sky News, Talking Pictures TV, That's 90s, That's TV 2, Together TV, TRUE CRIME, TRUE CRIME XTRA, U&Dave, U&Dave ja vu, U&Drama +1, U&W.
If you want to watch these channels, your aerial must point to one of the 80 Full service Freeview transmitters. For more information see the will there ever be more services on the Freeview Light transmitters? page.
Which Freeview channels does the Alltwen transmitter broadcast?
If you have any kind of Freeview fault, follow this Freeview reset procedure first.Digital television services are broadcast on a multiplexes (or Mux) where many stations occupy a single broadcast frequency, as shown below.
| Mux | H/V | Frequency | Height | Mode | Watts |
| PSB1 BBCA | V max | C43 (650.0MHz) | 158m | DTG- | 2W |
 1 BBC One (SD) Wales, 2 BBC Two Wales, 9 BBC Four, 23 BBC Three, 201 CBBC, 202 CBeebies, 231 BBC News, 232 BBC Parliament, plus 14 others | |||||
| PSB2 D3+4 | V max | C46 (674.0MHz) | 158m | DTG- | 2W |
 5 Channel 5, 6 ITV 2, 10 ITV3, 13 E4, 14 Film4, 15 Channel 4 +1 South ads, 18 More4, 26 ITV4, 28 ITVBe, 30 E4 +1, 35 ITV1 +1 (Wales), 71 That’s 60s, | |||||
| PSB3 BBCB | V max | C40 (626.0MHz) | 158m | DTG- | 2W |
 46 5SELECT, 101 BBC One HD Wales, 102 BBC Two HD Wales, 104 Channel 4 HD South ads, 105 Channel 5 HD, 106 BBC Four HD, 110 Channel 4 HD (Wales), 204 CBBC HD, 205 CBeebies HD, plus 1 others | |||||
Are you trying to watch these 44 Freeview channels?
The Alltwen (Neath Port Talbot, Wales) mast is a public service broadcasting (PSB) transmitter, it does not provide these commercial (COM) channels: U&Yesterday, 4seven, 5Action, 5STAR, 5USA, Al Jazeera Eng, Al Jazeera English, Blaze, Blaze +1, Challenge, Channel 5 +1, DMAX, E4 Extra, YAAAS!, Film4 +1, Food Network, FRANCE 24 (in English), GREAT! action, GREAT! christmas, GREAT! movies, GREAT! romance mix, HGTV, HobbyMaker, ITV2 +1, ITV3 +1, ITV4 +1, ITVBe +1, Legend, PBS America, Quest +1, Quest Red, Really, Sky Mix, Sky News, Talking Pictures TV, That's 90s, That's TV 2, Together TV, TRUE CRIME, TRUE CRIME XTRA, U&Dave, U&Dave ja vu, U&Drama +1, U&W.
If you want to watch these channels, your aerial must point to one of the 80 Full service Freeview transmitters. For more information see the will there ever be more services on the Freeview Light transmitters? page.
Which BBC and ITV regional news can I watch from the Alltwen transmitter?
BBC Wales Today 1.2m homes 4.7%
from Cardiff CF5 2YQ, 50km east-southeast (120°)
to BBC Wales region - 206 masts.
ITV Cymru Wales 1.2m homes 4.7%
from Cardiff CF5 6XJ, 50km southeast (126°)
to ITV Wales region - 206 masts.
How will the Alltwen (Neath Port Talbot, Wales) transmission frequencies change over time?
| 1984-97 | 1997-98 | 1998-2009 | 2009-13 | 30 Jun 2019- | |||||
| B E T | B E T | B E T | B E T | B E K T | |||||
| C40 | BBC1waves | BBC1waves | BBC1waves | BBCB | |||||
| C43 | ITVwaves | ITVwaves | ITVwaves | BBCA | BBCA | ||||
| C46 | BBC2waves | BBC2waves | BBC2waves | D3+4 | D3+4 | ||||
| C50tv_off | C4waves | C4waves | C4waves | BBCB |
tv_off Being removed from Freeview (for 5G use) after November 2020 / June 2022 - more
Table shows multiplexes names see this article;
green background for transmission frequencies
Notes: + and - denote 166kHz offset; aerial group are shown as A B C/D E K W T
waves denotes analogue; digital switchover was 12 Aug 09 and 9 Sep 09.
How do the old analogue and currrent digital signal levels compare?
| Analogue 1-4 | 6W | |
| BBCA, D3+4, BBCB | (-4.8dB) 2W |
Which companies have run the Channel 3 services in the Kilvey Hill transmitter area
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Thursday, 29 December 2011
C
Chris Clement10:35 AM
I live on Brecon Road in Pontardawe directly opposite Alltwen Hill Transmitter, no more than a mile away as we have direct line of sight.I have a low signal aerial with the elements vertical, as instructed, yet I still have pictures breaking & I have lost several channels to low signal. The breaking picture is worse with some channels than others & the ones I have lost there seems to be no reason for as nothing has changed. I have noticed that my next door neighbour has recently had an aerial fitted but that is pointing to Kilvay Hill transmitter. Do I need to do this to get a good signal as Alltwen is totally rubbish?
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Chris Clement: Alltwen only broadcasts the Public Service Broadcaster (PSB) channels/multiplexes. This covers all BBC channels, ITV1, ITV2, S4C, C4, E4, More4, C5 and a few others. If the reception of these channels are OK, then there is probably no issue with your reception from Alltwen. It also means that if your tuner has picked up the commercial channels (ITV3, Pick TV, Dave etc), then they will be coming from somewhere else which will explain poor reception on those channels.
It is possible that your tuner has decided to go with the signals coming from another transmitter and the two likely suspects for this in your area are Kilvey Hill and Pontardawe. Have you confirmed that BBC and ITV1/C4/C5 are tuned to Ch43 and Ch46 respectively. (Also Ch50 for HD services where applicable). This information will probably be given on the signal strength/quality screen whilst one of those stations are selected.
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Chris Clement: If BBC is tuned to Ch23 and ITV1 to Ch26, then your receiver is tuned to Kilvey Hill. Alltwen's services might be in the 800s.
If BBC is 61 and ITV1 58, then it is on Pontardawe transmitter.
The likely reason for changing an aerial from a small relay to a main station/larger relay (where reception from such a station is possible) is so as to get the commercial channels (as the small relays don't carry them). In the days of four-channel analogue it didn't matter as far as viewer choice was concerned.
Today there are those who may be better served by relays (with what you might call a "normal" aerial) who will invest in a larger and more expensive aerial installation so as to pick up from the main station in order to get the commercial channels. There are also those who have no choice but to go with the relay.
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Chris Clement: If it is tuned to another transmitter, you might (depending on the design of the receiver) be able to delete the current channels and manually tune in the two or three required.
Or run the auto tune scan with the aerial unplugged up until 25% and then unplug it again when it gets to 65%. That way you will only have it plugged in for Alltwen (Kilvey Hill uses lower frequencies and Pontardawe uses higher ones).
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Friday, 19 June 2020
J
John Stubberfield5:12 PM
jckintnovr: Plympton transmitter works are supposed to be finished - After all the usual restarts and retunes I am only receiving a reduced service in Millbrook .Cornwall : channels 40 , 41 and 42 are perfect , the others non-existent ( This applies to my TV set as well as the BT box ) Any ideas ?
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