Freeview Light on the Bethesda (Gwynedd, Wales) transmitter
 | Google map |  | Bing map |  | Google Earth |  | 53.176,-4.077 or 53°10'33"N 4°4'36"W |  | LL57 4YR |
The symbol shows the location of the Bethesda (Gwynedd, Wales) transmitter which serves 800 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 Bethesda (Gwynedd, 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 Bethesda (Gwynedd, 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 Bethesda 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 | C39 (618.0MHz) | 196m | DTG- | 5W |
 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 | C42- (641.8MHz) | 196m | DTG- | 5W |
 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 | C45 (666.0MHz) | 196m | DTG- | 5W |
 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 Bethesda (Gwynedd, 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 Bethesda transmitter?
BBC Wales Today 1.2m homes 4.7%
from Cardiff CF5 2YQ, 195km south-southeast (164°)
to BBC Wales region - 206 masts.
ITV Cymru Wales 1.2m homes 4.7%
from Cardiff CF5 6XJ, 198km south-southeast (165°)
to ITV Wales region - 206 masts.
How will the Bethesda (Gwynedd, Wales) transmission frequencies change over time?
| 1984-97 | 1997-98 | 1998-2009 | 2009-13 | 14 Nov 2018 | |||||
| C/D E | C/D E | C/D E | C/D E T | B E K T | |||||
| C39 | BBCA | ||||||||
| C42 | D3+4 | ||||||||
| C45 | BBCB | ||||||||
| C53tv_off | C4waves | C4waves | C4waves | BBCB | |||||
| C57tv_off | BBC1waves | BBC1waves | BBC1waves | BBCA | |||||
| C60tv_off | ITVwaves | ITVwaves | ITVwaves | -D3+4 | |||||
| C63 | 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 21 Oct 09 and 18 Nov 09.
How do the old analogue and currrent digital signal levels compare?
| Analogue 1-4 | 25W | |
| BBCA, D3+4, BBCB | (-7dB) 5W |
Which companies have run the Channel 3 services in the Llanddona transmitter area
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Monday, 1 July 2013
L
Lyndon Freeman8:52 PM
Bangor
Hi
Postcode LL57 3TA house No 9 aerial mounted 15 foot from the ground on the rear wall.
I am using the Bethesda transmitter and my next door neighbour also uses the same but he is using a old BBC2 aerial set horizontally not vertically and pointing away from the transmitter (which is in direct line of site)by about 45 degrees at the Quarry he also gets the additional 27 channels I set my aerial the same retuned my TV and got the additional channels but with only a poor signal strength 30%, mounted vertically pointing directly at transmitter which is about 1 mile away the best signal I can get is 66% (with or without the booster) and when the wind blows or there is the slightest bit of rain or mist I lose the signal completely but my neighbours signal stays strong. I have even bought a new high gain aerial,booster and low loss cable but I still lose the signal. Any advise would be very helpful as I am fed up of going up and down a ladder every time the weather changes.
Thank You.
| link to this comment |
Lyndon's: mapL's Freeview map terrainL's terrain plot wavesL's frequency data L's Freeview Detailed Coverage
Tuesday, 2 July 2013
J
jb3812:27 AM
Lyndon Freeman: I realise that you have said you are using the Bethesda transmitter @ 1 mile / 257 degrees (V polarity) which uses mux channels 57 - 60 - 53, but though the Bethesda North transmitter @ 0.6 miles / 257 degrees (V polarity) is indicated as providing superior reception, it operating on mux Channels 28 - 25 - 22.
As far as your neighbour is concerned, what are these extra channels you refer to? as if he is managing to receive anything "extra" from the Llanddona transmitter @ 9 miles / 341 degrees (H) polarity then its purely through chance as its commercial channels are not indicated as being possible to receive at your location, the three commercial muxes being identified by being able to pick up ITV3 (10) - Pick TV (11) - Film 4 (15), and so does your neighbour receive any of those programme channels? these programme channels corresponding to mux channels 43 - 46 - 40.
The other point to note being that the PSB channels from Llanddona are single frequency with Bethesda i.e: 57 - 60 - 53 whereby making it difficult to know where you are picking the signal up from.
I will say though that your neighbours old BBC2 aerial aerial which might be a C/D type (identified by green plastic end plug on the elements horizontal support boom) would be better for Llanddona reception "if" your aerial is a group A type (red plastic end plug) which was installed for Bethesda North transmissions at the bottom end of the band, although if you reside in the end property with what looks like a flowering cherry tree in the garden then the two far end houses behind the metal gate could be blocking the signal from Llanddona, that is apart from the major block indicated on the terrain predictor at roughly 1 mile away from you.
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Monday, 4 November 2024
Transmitter engineering
10:47 AM
10:47 AM
Bethesda transmitter - Bethesda transmitter: Possible effect on TV reception week commencing 04/11/2024 Screen may go black on some or all channels [DUK]
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Monday, 11 November 2024
Transmitter engineering
5:10 AM
5:10 AM
Bethesda transmitter - Bethesda transmitter: Possible effect on TV reception week commencing 11/11/2024 Screen may go black on some or all channels [DUK]
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Transmitter engineering
10:48 AM
10:48 AM
BETHESDA transmitter - Freeview: Off the air due to essential engineering from 7 Nov 10:24 until 7 Nov 10:31. . [BBC]
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