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 05/06/2023 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 not one of the extended Freeview HD (COM7 and COM8) transmitters, it does not provide these high definition (HD) channels: .
If you want to watch these HD channels, either use Freesat HD, or move your TV aerial must point to one of the 30 Full Freeview HD transmitters. For more information see the want to know which transmitters will carry extra Freeview HD? 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)
Are you trying to watch these 0 Freeview HD channels?
The Llanddona (Isle of Anglesey, Wales) mast is not one of the extended Freeview HD (COM7 and COM8) transmitters, it does not provide these high definition (HD) channels: .
If you want to watch these HD channels, either use Freesat HD, or move your TV aerial must point to one of the 30 Full Freeview HD transmitters. For more information see the want to know which transmitters will carry extra Freeview HD? 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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Wednesday, 24 June 2020
C
Chris.SE5:47 PM
Stephen Lawson:
Should have added, if the aerial is pointing at Arfon, the rods should be vertical. If it's pointing at Llanddonna, are there any trees in the line-of-sight?
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Saturday, 14 November 2020
G
G jones6:20 PM
Why no channel 41 Sony movies action on the llanddona transmitter
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S
StevensOnln17:05 PM
G jones: Sony Movies Action is not broadcast from transmitters in Wales, due to the need for S4C to be broadcast from every Welsh transmitter, which takes capacity on the PSB2 multiplex used to broadcast E4 in England/Scotland/Northern Ireland, which in turn causes E4 to take space on SDN.COM4 which is used to broadcast Sony Movies Action elsewhere (presumably Sony get a discount for taking a slot with less coverage).
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Friday, 18 June 2021
Transmitter engineering
11:46 AM
11:46 AM
Llanddona transmitter - Llanddona transmitter: Possible effect on TV reception week commencing 14/06/2021 Possible Pixelation or flickering on some or all channels [DUK]
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Monday, 21 June 2021
Transmitter engineering
5:46 AM
5:46 AM
Llanddona transmitter - Llanddona transmitter: Possible effect on TV reception week commencing 21/06/2021 Possible Pixelation or flickering on some or all channels [DUK]
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Monday, 28 June 2021
Transmitter engineering
5:46 AM
5:46 AM
Llanddona transmitter - Llanddona transmitter: Possible effect on TV reception week commencing 28/06/2021 Possible Pixelation or flickering on some or all channels [DUK]
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Sunday, 4 July 2021
Transmitter engineering
11:46 PM
11:46 PM
Llanddona transmitter - Llanddona transmitter: Possible effect on TV reception week commencing 05/07/2021 Possible Pixelation or flickering on some or all channels [DUK]
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Monday, 12 July 2021
Transmitter engineering
2:47 PM
2:47 PM
Llanddona transmitter - Llanddona transmitter: Possible effect on TV reception week commencing 12/07/2021 Possible Pixelation or flickering on some or all channels [DUK]
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Sunday, 18 July 2021
Transmitter engineering
11:17 PM
11:17 PM
Llanddona transmitter - Llanddona transmitter: Possible effect on TV reception week commencing 19/07/2021 Possible Pixelation or flickering on some or all channels [DUK]
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Monday, 23 August 2021
G
gwil John2:12 PM
What aerial group do I need for Felinheli (LL564NZ) from Llanddona?
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