Freeview Light on the Long Mountain (Powys, Wales) transmitter
 | Google map |  | Bing map |  | Google Earth |  | 52.644,-3.088 or 52°38'39"N 3°5'16"W |  | SY21 8JA |
The symbol shows the location of the Long Mountain (Powys, Wales) transmitter which serves 9,500 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 Long Mountain (Powys, 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 Long Mountain (Powys, 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 Long Mountain 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 | C33- (569.8MHz) | 454m | DTG- | 400W |
 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 | C36 (594.0MHz) | 454m | DTG- | 400W |
 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 | C48 (690.0MHz) | 454m | DTG- | 400W |
 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 Long Mountain (Powys, 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 Long Mountain transmitter?
BBC Wales Today 1.2m homes 4.7%
from Cardiff CF5 2YQ, 128km south (186°)
to BBC Wales region - 206 masts.
ITV Cymru Wales 1.2m homes 4.7%
from Cardiff CF5 6XJ, 132km south (187°)
to ITV Wales region - 206 masts.
How will the Long Mountain (Powys, Wales) transmission frequencies change over time?
| 1984-97 | 1997-98 | 1998-2009 | 2009-13 | 31 Oct 2018 | |||||
| C/D E | C/D E | C/D E | C/D E T | K T | |||||
| C33 | BBCA | ||||||||
| C36 | D3+4 | ||||||||
| C48 | BBCB | ||||||||
| C53tv_off | D3+4 | ||||||||
| C54tv_off | C4waves | C4waves | C4waves | ||||||
| C57tv_off | BBCB | ||||||||
| C58tv_off | BBC1waves | BBC1waves | BBC1waves | ||||||
| C60tv_off | -BBCA | ||||||||
| C61 | ITVwaves | ITVwaves | ITVwaves | ||||||
| C64 | BBC2waves | BBC2waves | BBC2waves |
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 4 Nov 09 and 3 Dec 09.
How do the old analogue and currrent digital signal levels compare?
| Analogue 1-4 | 1000W | |
| BBCA, D3+4, BBCB | (-4dB) 400W |
Local transmitter maps
Long Mountain Freeview Long Mountain DAB Long Mountain AM/FM Long Mountain TV region BBC Wales WalesWhich companies have run the Channel 3 services in the Long Mountain transmitter area
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Is the transmitter output the same in all directions?
Radiation patterns withheldMonday, 17 January 2011
aerialman: I am not taking a "sweep it under the carpet" at all. I am simply suggesting that your reception problems are not caused by transmitter outages.
It is unlikely that the transmitter would fail and the automatic testing facilities would not pick it up.
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As I have repeatedly written, what happens each time is that the MUXes carry on being broadcast, but carry no data. Each time it happens, the signal quality and signal strength never varies from when it is carry data, i.e. typically around 100% on both. I have confirmed this on five separate piece of Freeview equipment fed from two separate aerials, both of which have direct line of sight to LM, with nothing but fresh air between them and the mast.
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Richard Jones: Do you have any proof of this? Are you claiming this happen to all three multiplexes?
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I can only receive two MUXes as I don't have any Freeview HD kit. Proof? I suppose I'd have to dig out a video camera to film me going round each TV each time it happens...
Anybody would think that you think I'm making all this up. I really have got better things to do with my time than that, not to mention I have a much better imagination than to come up with something like this.
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Richard Jones: I'm not saying you have "made it up", I am asking you what proof you have provide to the BBC. Please.
You SPECIFICALLY said that you KNEW the multiplex was being broadcast with no content. So, again, what is your proof of this?
I can't help if you don't have this actual information.
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No video except black, and no audio. No EPG, no programme data for what's currently broadcast. Will that do? If I go into the boxes' settings, the quality and strength show up unchanged as 100%.
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Richard Jones: Ah, you say "100%".
Having both signal quality and strength at 100% often indicates that you have too much signal.
If you have a booster or amplifier you might want to remove it.
If you don't you might want to try an attenuator to reduce the signal strength down.
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I should've also mentioned that it also happens on two other Freeview receivers which are fed off a splitter off one of the antennas. Their signal strength is around 80% or so, and yes, same problem on those two. Same problem all equipment off both antennas, with varying signal strength and quality.
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Richard Jones: The same receivers? When does this happen?
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All five go off at the same time, and come back on the same time when the problem is resolved. I have 3 TVs, one fed off a Philips DVT-B box and sharing the same aerial with a Goodmans IDTV (the 80% signal device), and a Panasonic IDTV downstairs fed off a separate aerial. The problem usually lasts 5-10 mins or so, during which time I turn all three on, turn the volume up, tune to the same channel, and keep an eye and ear on them until the signal returns. It's fairly obvious when it does as I then hear each TV, and check I get a picture. I then turn off two I don't need, and carry on watching, usually on the old Ferguson while I do some PC time. As to times of day, I only notice it in the evenings and at night, as that's when I most typically watch TV, but it has happened during the day as well.
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