Full Freeview on the Llanddona (Isle of Anglesey, Wales) transmitter
 | Google Streetview |  | Google map |  | Bing map |  | Google Earth |  | 53.307,-4.128 or 53°18'25"N 4°7'41"W |  | LL58 8YB |
The symbol shows the location of the Llanddona (Isle of Anglesey, Wales) transmitter which serves 44,000 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.
Are there any planned engineering works or unexpected transmitter faults on the Llanddona (Isle of Anglesey, Wales) mast?
Llanddona transmitter - Llanddona transmitter: Possible effect on TV reception week commencing 22/04/2024 Pixelation or flickering on some or all channels 
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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.
64QAM 8K 3/4 27.1Mb/s DVB-T MPEG2
H/V: aerial position (horizontal or vertical)
The Llanddona (Isle of Anglesey, Wales) mast is a public service broadcasting (PSB) transmitter, it does not provide these commercial (COM) channels: .
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 Llanddona 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.
64QAM 8K 3/4 27.1Mb/s DVB-T MPEG2
H/V: aerial position (horizontal or vertical)
The Llanddona (Isle of Anglesey, Wales) mast is a public service broadcasting (PSB) transmitter, it does not provide these commercial (COM) channels: .
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 Llanddona transmitter?
BBC Wales Today 1.2m homes 4.7%
from Cardiff CF5 2YQ, 210km south-southeast (164°)
to BBC Wales region - 206 masts.
ITV Cymru Wales 1.2m homes 4.7%
from Cardiff CF5 6XJ, 213km south-southeast (165°)
to ITV Wales region - 206 masts.
How will the Llanddona (Isle of Anglesey, Wales) transmission frequencies change over time?
| 1950s-80s | 1984-97 | 1997-98 | 1998-2009 | 2009-13 | 2013-18 | 2013-17 | 14 Nov 2018 | ||
| VHF | C/D E | C/D E | C/D E | E T | E T | E T | B E T | ||
| C1 | BBCtvwaves | ||||||||
| C40 | ArqB | ArqB | BBCA | ||||||
| C41 | SDN | ||||||||
| C43 | SDN | SDN | SDN | D3+4 | |||||
| C44 | ArqA | ||||||||
| C46 | ArqA | ArqA | ArqA | BBCB | |||||
| C47 | ArqB | ||||||||
| C50tv_off | ArqB | ||||||||
| C51tv_off | _local | _local | _local | _local | |||||
| C53tv_off | C4waves | C4waves | C4waves | BBCB | BBCB | BBCB | |||
| C57tv_off | BBC1waves | BBC1waves | BBC1waves | BBCA | BBCA | BBCA | |||
| C60tv_off | ITVwaves | ITVwaves | ITVwaves | -D3+4 | -D3+4 | -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 | 100kW | |
| BBCA, D3+4, BBCB | (-7dB) 20kW | |
| SDN, ARQA, ARQB | (-10dB) 10kW | |
| Mux 1*, Mux 2*, Mux A*, Mux B*, Mux C*, Mux D* | (-20dB) 1000W |
Which companies have run the Channel 3 services in the Llanddona transmitter area
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Friday, 13 October 2023
D
David Griffiths1:47 PM
Bodorgan
We live in Llangristiolus, LL62 5PS and are currently getting quite gab interfearance on all channels on TV.. I see that bas reception is predicted for week biginning 9th October,
Can you please tell me when we can expect normal service to return?
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David's: mapD's Freeview map terrainD's terrain plot wavesD's frequency data D's Freeview Detailed Coverage
C
Chris.SE2:45 PM
David Griffiths:
The Planned Engineering may not be helping, but you are only 17km from the transmitter with a clear line-of-sight and there are no specific faults listed, so the most likely cause will be the recent weather conditions.
Severe Tropospheric Ducting occurred with the recent high pressure.
It was unusually intense on this occasion. It can be quite variable, come and go within seconds, minutes or hours. It doesn't necessarily affect all multiplexes at the same time or at all and not everyone will be affected, it will depend on location. At times it can wipe out your reception.
People in different parts of the UK and Europe have been experiencing problems.
Do NOT retune. IF you had been correctly tuned it is never advised to Retune when you've lost signal or it's badly pixellated be it due to weather, engineering or faults etc. as it can often clear your correct tuning. You just have to be patient and wait for normal conditions, you can't tune to signals that aren't there or have bad interference.
If you did retune at any point and channels are missing from your EPG then the best option is to try a manual retune for the multiplex UHF channels that you are missing.
See Channel listings for Industry Professionals | Freeview for a full list of which TV programme channels are on which multiplex.
The correct UHF channel numbers are listed in the top section of the page (although the TV programme lists may not be up-to-date).
As far as the Planned Engineering is concerned, I'm afraid Arqiva never give details of the work or how long it will last, especially as some may be weather dependant.
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Monday, 16 October 2023
Transmitter engineering
5:10 AM
5:10 AM
Llanddona transmitter - Llanddona transmitter: Possible effect on TV reception week commencing 16/10/2023 Pixelation or flickering on some or all channels [DUK]
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Monday, 23 October 2023
Transmitter engineering
10:47 AM
10:47 AM
Llanddona transmitter - Llanddona transmitter: Possible effect on TV reception week commencing 23/10/2023 Pixelation or flickering on some or all channels [DUK]
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Monday, 30 October 2023
Transmitter engineering
5:11 AM
5:11 AM
Llanddona transmitter - Llanddona transmitter: Possible effect on TV reception week commencing 30/10/2023 Pixelation or flickering on some or all channels [DUK]
| link to this comment |
Transmitter engineering
5:11 AM
5:11 AM
Llanddona transmitter - Llanddona transmitter: Possible effect on TV reception week commencing 30/10/2023 Pixelation or flickering on some or all channels [DUK]
| link to this comment |
Monday, 6 November 2023
Transmitter engineering
10:48 AM
10:48 AM
Llanddona transmitter - Llanddona transmitter: Possible effect on TV reception week commencing 06/11/2023 Pixelation or flickering on some or all channels [DUK]
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Monday, 13 November 2023
Transmitter engineering
5:04 AM
5:04 AM
Llanddona transmitter - Llanddona transmitter: Possible effect on TV reception week commencing 13/11/2023 Pixelation or flickering on some or all channels [DUK]
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Monday, 20 November 2023
Transmitter engineering
5:10 AM
5:10 AM
Llanddona transmitter - Llanddona transmitter: Possible effect on TV reception week commencing 20/11/2023 Pixelation or flickering on some or all channels [DUK]
| link to this comment |
Transmitter engineering
5:10 AM
5:10 AM
Llanddona transmitter - Llanddona transmitter: Possible effect on TV reception week commencing 20/11/2023 Pixelation or flickering on some or all channels [DUK]
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