Freeview Light on the Llandderfel (Gwynedd, Wales) transmitter
 | Google map |  | Bing map |  | Google Earth |  | 52.911,-3.503 or 52°54'40"N 3°30'12"W |  | LL23 7PY |
The symbol shows the location of the Llandderfel (Gwynedd, Wales) transmitter which serves 1,300 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 Llandderfel (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 Llandderfel (Gwynedd, Wales) mast is a public service broadcasting (PSB) transmitter, it does not provide these commercial (COM) channels: 4seven, 5Action, 5STAR, 5USA, Al Jazeera Eng, Blaze, Blaze +1, CBS Reality, Challenge, Channel 5 +1, CITV, YAAAS!, Dave, Dave ja vu, DMAX, Drama +1, E4 Extra, Film4 +1, Food Network, GB News, GREAT! movies, GREAT! movies action, HGTV, HobbyMaker, ITV2 +1, ITV3 +1, ITV4 +1, ITVBe +1, Legend, PBS America, pick, Pop Player, Quest +1, Quest Red, Really, Sky News, Smithsonian Channel, Talking Pictures TV, TCC, That's TV (UK), Together TV, W, Yesterday +1.
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 Llandderfel 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 | C32 (562.0MHz) | 319m | 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, 250 BBC Red Button, plus 13 others | |||||
| PSB2 D3+4 | V max | C34 (578.0MHz) | 319m | DTG- | 2W |
 5 Channel 5, 6 ITV 2, 10 ITV3, 14 Film4, 15 Channel 4 +1 South ads, 18 More4, 26 ITV4, 30 E4 +1, 35 ITV1 +1 (Wales), | |||||
| PSB3 BBCB | V max | C35 (586.0MHz) | 319m | DTG- | 2W |
 56 5SELECT, 101 BBC One HD Wales, 102 BBC Two HD (England), 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 43 Freeview channels?
The Llandderfel (Gwynedd, Wales) mast is a public service broadcasting (PSB) transmitter, it does not provide these commercial (COM) channels: 4seven, 5Action, 5STAR, 5USA, Al Jazeera Eng, Blaze, Blaze +1, CBS Reality, Challenge, Channel 5 +1, CITV, YAAAS!, Dave, Dave ja vu, DMAX, Drama +1, E4 Extra, Film4 +1, Food Network, GB News, GREAT! movies, GREAT! movies action, HGTV, HobbyMaker, ITV2 +1, ITV3 +1, ITV4 +1, ITVBe +1, Legend, PBS America, pick, Pop Player, Quest +1, Quest Red, Really, Sky News, Smithsonian Channel, Talking Pictures TV, TCC, That's TV (UK), Together TV, W, Yesterday +1.
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 Llandderfel transmitter?
BBC Wales Today 1.2m homes 4.7%
from Cardiff CF5 2YQ, 158km south (174°)
to BBC Wales region - 206 masts.
ITV Cymru Wales 1.2m homes 4.7%
from Cardiff CF5 6XJ, 162km south (175°)
to ITV Wales region - 206 masts.
How will the Llandderfel (Gwynedd, Wales) transmission frequencies change over time?
| 1984-97 | 1997-98 | 1998-2009 | 2009-13 | 2013-18 | 2013-17 | 27 Feb 2019 | |||
| C/D E | C/D E | C/D E | C/D E | C/D E T | C/D E T | A K T | |||
| C32 | BBCA | ||||||||
| C34 | D3+4 | ||||||||
| C35 | BBCB | ||||||||
| C50tv_off | BBCA | BBCA | |||||||
| C55tv_off | BBC1waves | BBC1waves | BBC1waves | D3+4 | D3+4 | D3+4 | |||
| C59tv_off | C4waves | C4waves | C4waves | BBCB | BBCB | BBCB | |||
| C62 | BBC2waves | BBC2waves | BBC2waves | BBCA | |||||
| C65 | ITVwaves | ITVwaves | ITVwaves |
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 28 Oct 09 and 25 Nov 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 Moel-Y-Parc transmitter area
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Wednesday, 11 November 2020
Transmitter engineering
4:26 PM
4:26 PM
LLANDDERFEL transmitter - Freeview: Off the air due to essential engineering from 11 Nov 00:06 until 11 Nov 05:30. . [BBC]
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Thursday, 17 June 2021
Transmitter engineering
3:33 PM
3:33 PM
LLANDDERFEL transmitter - Freeview: Off the air due to a fault from 17 Jun 06:43 until 17 Jun 07:06. Off the air due to essential engineering from 16 Jun 11:00 until 16 Jun 11:13. . [BBC]
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Transmitter engineering
4:08 PM
4:08 PM
Llandderfel transmitter - Llandderfel transmitter: Possible effect on TV reception week commencing 14/06/2021 Possible service interruptions [DUK]
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Monday, 21 June 2021
Transmitter engineering
11:47 AM
11:47 AM
LLANDDERFEL transmitter - Freeview: Off the air due to a fault from 17 Jun 06:43 until 17 Jun 07:06. . [BBC]
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Tuesday, 5 October 2021
Transmitter engineering
2:44 PM
2:44 PM
Llandderfel transmitter - Llandderfel transmitter: Possible effect on TV reception week commencing 04/10/2021 Screen may go black on all or certain channels [DUK]
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Friday, 8 October 2021
Transmitter engineering
2:44 PM
2:44 PM
LLANDDERFEL transmitter - Freeview: Off the air due to essential engineering from 5 Oct 11:26 until 5 Oct 11:29. . [BBC]
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Wednesday, 1 December 2021
Transmitter engineering
6:14 PM
6:14 PM
LLANDDERFEL transmitter - Freeview: Off the air due to a fault from 1 Dec 15:51 until 1 Dec 16:48. . [BBC]
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Wednesday, 12 April 2023
Transmitter engineering
1:09 PM
1:09 PM
LLANDDERFEL transmitter - Freeview: Off the air due to a fault from 12 Apr 10:13. . [BBC]
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Transmitter engineering
4:09 PM
4:09 PM
LLANDDERFEL transmitter - Freeview: Off the air due to a fault from 12 Apr 10:13 until 12 Apr 14:52. . [BBC]
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