Freeview Light on the Llandecwyn (Gwynedd, Wales) transmitter
 | Google map |  | Bing map |  | Google Earth |  | 52.914,-4.018 or 52°54'51"N 4°1'5"W |  | LL47 6YT |
The symbol shows the location of the Llandecwyn (Gwynedd, Wales) transmitter which serves 3,600 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.
Are there any planned engineering works or unexpected transmitter faults on the Llandecwyn (Gwynedd, Wales) mast?
LLANDECWYN transmitter - DAB: Off the air due to a fault from 18 Dec 01:17 until 18 Dec 02:47. Off the air due to a fault from 17 Dec 22:49 until 18 Dec 01:10. . FM: Off the air due to a fault from 17 Dec 22:49 until 18 Dec 19:09. . 
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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 Llandecwyn (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 Llandecwyn 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) | 301m | DTG- | 60W |
 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 | C34 (578.0MHz) | 301m | DTG- | 60W |
 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 | C35 (586.0MHz) | 301m | DTG- | 60W |
 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 Llandecwyn (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 Llandecwyn transmitter?
BBC Wales Today 1.2m homes 4.7%
from Cardiff CF5 2YQ, 167km south-southeast (162°)
to BBC Wales region - 206 masts.
ITV Cymru Wales 1.2m homes 4.7%
from Cardiff CF5 6XJ, 169km south-southeast (163°)
to ITV Wales region - 206 masts.
How will the Llandecwyn (Gwynedd, Wales) transmission frequencies change over time?
| 1984-97 | 1997-98 | 1998-2009 | 2009-13 | 2013-18 | 2013-17 | 14 Nov 2018 | |||
| 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 | ||||||||
| C49tv_off | BBCA | BBCA | |||||||
| C54tv_off | C4waves | C4waves | C4waves | BBCB | BBCB | BBCB | |||
| C58tv_off | BBC1waves | BBC1waves | BBC1waves | D3+4 | D3+4 | D3+4 | |||
| C61 | ITVwaves | ITVwaves | ITVwaves | BBCA | |||||
| 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 21 Oct 09 and 18 Nov 09.
How do the old analogue and currrent digital signal levels compare?
| Analogue 1-4 | 300W | |
| BBCA, D3+4, BBCB | (-7dB) 60W |
Local transmitter maps
Llandecwyn Freeview Llandecwyn DAB Llandecwyn AM/FM Llanddona TV region BBC Wales WalesWhich companies have run the Channel 3 services in the Llanddona transmitter area
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Is the transmitter output the same in all directions?
Radiation patterns withheldMonday, 4 June 2018
S
StevensOnln110:14 AM
Tina McDonnell: If the problem is happening at the same time every day then the most likely explanation is that you're getting electrical interference from something nearby operating on a timer. Do your (or your immediate neighbours) have anything with an electric motor operating at the times that you're loosing signal?
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T
Tina McDonnell10:41 AM
Tina McDonnell: I don't think so but I will keep an eye out. It was not working at 6am this morning but all other channels were?? I am a bit perplexed about it really and frustrated too. My neighbour also reports the same thing. Could the recent storm affect it? Then why does it work in the evenings?? What can I do about it and can I report it to anyone?? Thanks
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S
StevensOnln111:34 AM
Tina McDonnell: Transmitters don't reduce their broadcast power at certain times of the day so a transmitter fault is very unlikely. You need to track down the source of the interference and get whoever is responsible to repair or replace the equipment causing it.
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Friday, 16 November 2018
K
Karen Owen4:56 PM
I still have no signal and this is the third day. When can I expect to be able to watch my television again?
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S
StevensOnln15:39 PM
Karen Owen: The Llandecwyn transmitter changed frequencies early on Wednesday 14th. If you have not already done so you will need to retune. If that does not restore your channels you should contact the Freeview Advice Line (see link below).
Important changes to Freeview TV signals | Freeview
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Sunday, 18 November 2018
K
Karen Owen3:33 PM
To retune my tv, surely i need to have a signal first?
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MikeP
4:37 PM
4:37 PM
Karen Owen:
No. Your TV will not show any signals until you have at least one multiplex tuned. A brand new TV does not have any channels tuned in before you get it, When you set it up you have to use the tuning features for it to find any signals received from at least one transmitter (there are over 1100 of the across the UK so it is impossible for manufacturers to pre-tune them as they, like us, have no idea which is your best transmitter option).
So you need to make sure your aerial is properly connected, switch on the TV and then use the automatic tuning feature. It will tell you how to do that in your User Manual.
Once you have done that you should have some programmes available. To check that you have all that are available at your locality, go to the Digital UK Cloverage Checker at http://www.digitaluk.co.u…ker, put in your full post code and house number and start it searching. It will display a listing of the available transmitters in your area together with an indication, by the colours of the bars, what the expected reception is like. Select the nearest one with as many green bars as possible and note the channel numbers shown in that listing. Then, on your TV, select the Manual Tuning option - but DO NOT RETUNE. compare the channel numbers shown by your TV with those given by Digital UK. Make sure you are tuned to those channels for the best reception.
Note that you are likely to need a wideband aerial these days for most, but not all, transmitters. You also need a Freeview HD capable TV zet, not just 'HD Ready' as that does not allow it to receove the HD programmes.
Hope that helps?
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Monday, 17 June 2019
E
Eira Thomas11:51 AM
Porthmadog
Reporting issue with ITV, Channel 4 and Channel 5. The house is 6 Roche Terrace, Porthmadog, LL49 9BH. We are only receiving BBc channels, for example:
1 - BBC 1 Wales
2 - BBC 2 Wales
9 - BBC FOUR
202 - CBBC
202 - CBeebies
231 - BBC News
232 - BBC Parliament
We have retunned the TV twice and still only BBC channels. I check the flat above me and they are too only receiving BBC channels. Another apartment which has their own TV ariel in Porthmadog are also only getting a few channels, their address is 1 Oakeley Wharf, Porthmadog, LL49 9AY.
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Eira's: mapE's Freeview map terrainE's terrain plot wavesE's frequency data E's Freeview Detailed Coverage
Thursday, 9 September 2021
A
AlanHumphreys 12:17 PM
Why is S4C not being transmitted from the Llandecwyn mast any more?
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A
AlanHumphreys 12:17 PM
Why is S4C not being transmitted from the Llandecwyn mast any more.
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