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 11/11/2024 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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Tuesday, 20 November 2012
B
Bethan Williams1:18 PM
After retuning last week (14th November 2012) I have lost all bcc channels on my digi box, if I retune to gain bbc channels I loose other channels. Have phoned digital helpline and they were no help at all
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Bethan Williams: If the box has a manual tune function, then you need to go through to it and enter UHF/RF channel 57 for BBC from Llanddona.
Go to ITV1 and bring up signal strength screen and it should say that it is tuned to C60 for Llanddona. If it's not, then let us know what number it is tuned to.
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Bethan Williams .. if you are stuck I am your
local CAI plus installer ... give me a bell I will be willing to help,free advice given
..John ,Digital services Wales
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John's: mapJ's Freeview map terrainJ's terrain plot wavesJ's frequency data J's Freeview Detailed Coverage
Bethan click on my name it will bring up my website ..
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John's: mapJ's Freeview map terrainJ's terrain plot wavesJ's frequency data J's Freeview Detailed Coverage
Friday, 12 July 2013
N
Nicola3:29 PM
Hello, my freeview box was working fine, but since Sunday there's been no signal for all the channels in frequency C46 and C40. They suddenly came back and worked fine yesterday daytime so I thought the problem had sorted itself out. However since yesterday night it has completely disappeared again.
This site says there are no current problems with the Llanddona transmitter (I'm in Gaerwen) but surely if the box was the problem it wouldn't have been working yesterday?
Anyone have any idea what the problem might be or what I could do?
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Saturday, 24 January 2015
G
Glyn Royds2:15 PM
I notice that Llanddona is broadcasting TinyPOP (126) so why not POP (125)????
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Dave Lindsay
2:33 PM
2:33 PM
Glyn Royds: You will have to address your question to the broadcaster, as that is its decision. This is an independent advice site, not connected with any broadcaster.
Refer to the full list of terrestrial services:
Digital UK Industry - Channel listings
125 POP is available on Local television multiplexes only, and is therefore not generally available on Freeview. These multiplexes serve small areas such as some big cities.
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Thursday, 31 December 2015
D
david dobbs2:40 PM
Hi there.
Trying to setup a Samsung led tv on an indoor aerial in Holyhead, tried two aerials fitted close to a window, at both sides of the house.
Not getting any channels from either aerial or location.
Help please, any ideas???
Ta Dave Dobbs
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MikeP
6:37 PM
6:37 PM
david dobbs:
We need a full postcode to help determine reception conditions and which transmitter is best. Indoor aerials are rarely much good, only being suitable if you are very close to the transmitter and have no obstructions in the way. The aerial must be placed where it has clear sight of the transmitter aerial mast and has nothing obstructing the line of sight. People moving in the room or nearby will affect reception, which is why an external or loft aerial is preferable.
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Monday, 1 February 2016
S
Ste byrne9:34 PM
I've been having very poor reception on bcc dab channels for a week now
Are there any plans to fix this? Tried multiple dab radios including the car.
Reception was poor along the a55 this morning from holyhead to the bridge
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