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 25/09/2023 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 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, 21 June 2016
Transmitter engineering
5:33 PM
5:33 PM
LLANDDONA transmitter - DAB: BBC National DAB Radio Weak Signal from 11:25 today to 15:20 today. FM: Radio 1 FM Weak Signal from 11:19 today to 15:20 today, Radio 2 FM Weak Signal from 11:19 today to 15:20 today, Radio 3 FM Weak Signal from 11:19 today to 15:20 today, Radio 4 FM [BBC]
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Wednesday, 22 June 2016
Transmitter engineering
5:32 AM
5:32 AM
LLANDDONA transmitter - DAB: BBC National DAB Radio Weak Signal from 11:25 yesterday to 15:20 yesterday. FM: Radio 1 FM Weak Signal from 11:19 yesterday to 15:20 yesterday, Radio 2 FM Weak Signal from 11:19 yesterday to 15:20 yesterday, Radio 3 FM Weak Signal from 11:19 yesterda [BBC]
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Thursday, 23 June 2016
Transmitter engineering
5:31 AM
5:31 AM
LLANDDONA transmitter - DAB: BBC National DAB Radio Weak Signal from 11:25 on 21 Jun to 15:20 on 21 Jun. FM: Radio 1 FM Weak Signal from 11:19 on 21 Jun to 15:20 on 21 Jun, Radio 2 FM Weak Signal from 11:19 on 21 Jun to 15:20 on 21 Jun, Radio 3 FM Weak Signal from 11:19 on 21 Ju [BBC]
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Wednesday, 20 July 2016
Transmitter engineering
5:32 PM
5:32 PM
LLANDDONA transmitter - Freeview: BBC Digital TV Weak Signal from 14:36 today to 14:52 today. [BBC]
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Thursday, 21 July 2016
Transmitter engineering
5:32 AM
5:32 AM
LLANDDONA transmitter - Freeview: BBC Digital TV Weak Signal from 14:36 yesterday to 14:52 yesterday. [BBC]
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Friday, 22 July 2016
Transmitter engineering
5:32 AM
5:32 AM
LLANDDONA transmitter - Freeview: BBC Digital TV Weak Signal from 14:36 on 20 Jul to 14:52 on 20 Jul. [BBC]
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Monday, 22 August 2016
B
Brian Springthorpe10:38 PM
Reception on all BBC channels very poor from Llandonna on 22 August 2016.
Tried retuning Freeview several times but only getting Quality 1 on BBC 1, 2, 4, Red Button and Radio. In fact of all BBC associated channels none are registering above 1.
Why?
All other channels are showing Quality 10, even the Channel 4 stuff which usually suffers more than anything.
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M
MikeB11:24 PM
Brian Springthorpe: If all the other muxes are fine (and don't look at just quality, you need to be looking at signal strength, which should be around 75%), that points to a problem with your aerial system. Just because a wire might be frayed or damaged, doesn't always mean that the strongest signal will be the one that gets through - wires do weird things. For a start, change the aerial lead - cheap, easy and if it was duff, an easy fix. If the problem remains, then you need to look further up the signal path.
But if your getting a very high signal strength (which is why a postcode is so useful), then the BBC channels might be the ones to go crazy - they are likely to be the strongest. So check out the page called 'too much of a good thing'.
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J
jb3811:30 PM
Brian Springthorpe: Reception in many parts of the UK is presently being affected by a series of high pressure zones sweeping across the country, the effects of said pressure being most likely reason for the reception problems referred to, unfortunately nothing can be done to help rectify the problem except to wait until the situation improves.
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Tuesday, 23 August 2016
Transmitter engineering
5:31 PM
5:31 PM
LLANDDONA transmitter - DAB: BBC National DAB Radio Off Air from 14:22 today to 14:34 today. FM: Radio Wales FM Off Air from 12:48 on 21 Aug to 13:02 on 21 Aug. [BBC]
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