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 29/05/2023 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, 13 April 2011
G
Gwyn5:38 PM
Caernarfon
I'll give it a go this Friday & let you know the result.
thanks
Gwyn
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Wednesday, 20 April 2011
G
Gwyn7:04 AM
Caernarfon
The televes 45HD aerial does loop through without the 12v supply, tried this on a tempoary basis direct to one tv & the aerial pointing towards the transmitter through a velux window, seemed to be ok.
There's no switch on the distribution amplifier to cut off the supply, so back to the old drawing board. Since the master head amplifier is situated nest to the dipole a straight connection to the aerial is not an option.
Thanks
Gwyn
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Wednesday, 24 August 2011
I
Iain Nicol9:16 PM
Leeds
I'm at LS17 9LP (Yorkshire). We've had digital for 3 or 4 years, and have recently got 2 issues. They have happened since I followed the on- screen instructions to re tune after 20th August.
Firstly - the digital signal fluctuates during the afternoon. From midday until around 8pm, we get breakup or even total loss on all channels. Reception is perfectly good the rest of the time.
Secondly, since we retuned, our "local" news on BBC (channel 1) seems to think we live in Lincolnshire. To get the Yorkshire news, we have to tune to channel 825
We have a wideband amplified aerial mounted on the wall of the house, horizontally aligned pointing at 194 degrees (to Emley Moor) direct into a sky box. The signal goes from there into a 4 way splitter for distribution to sets around the house. This configuration allows sky to also be distributed on analogue.
Any ideas why we get this fluctuation, and why the locality has changed?
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Thursday, 25 August 2011
Iain Nicol: Please see Digital Region Overlap | ukfree.tv - independent free digital TV advice and Freeview intermittent interference | ukfree.tv - independent free digital TV advice . You may need to do this - My Freeview box has no EPG, is blank on FIVE, ITV3, ITV4, ITV2+1, has no sound or the channel line up is wrong | ukfree.tv - independent free digital TV advice .
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Tuesday, 30 August 2011
LLANDDONA transmitter - Over the next week Llanddona main transmitter: no analogue TV, TV (digital) Possible weak signal, Radio (analogue) Possible weak signal, Radio (digital) Possible weak signal. [DUK]
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LLANDDONA transmitter - Over the next week Llanddona main transmitter: TV (analogue) working normally, TV (digital) Possible weak signal, Radio (analogue) Possible weak signal, Radio (digital) Possible weak signal. [DUK]
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Wednesday, 31 August 2011
LLANDDONA transmitter - Freeview BBC Digital TV Weak Signal from 12:19 today HD Digital TV Weak Signal from 12:24 today [BBC] Over the next week Llanddona main transmitter: no analogue TV, TV (digital) Possible weak signal, Radio (analogue) Possible weak signal, Radio (digital) Possible weak signal. [DUK]
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LLANDDONA transmitter - Freeview BBC Digital TV Weak Signal from 12:19 today HD Digital TV Weak Signal from 12:24 today [BBC] Over the next week Llanddona main transmitter: TV (analogue) working normally, TV (digital) Possible weak signal, Radio (analogue) Possible weak signal, Radio (digital) Possible weak signal. [DUK]
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Thursday, 1 September 2011
LLANDDONA transmitter - Freeview BBC Digital TV Weak Signal from 12:19 yesterday HD Digital TV Weak Signal from 12:24 yesterday [BBC] Over the next week Llanddona main transmitter: no analogue TV, TV (digital) Possible weak signal, Radio (analogue) Possible weak signal, Radio (digital) Possible weak signal. [DUK]
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LLANDDONA transmitter - Freeview BBC Digital TV Weak Signal from 12:19 yesterday HD Digital TV Weak Signal from 12:24 yesterday [BBC] Over the next week Llanddona main transmitter: TV (analogue) working normally, TV (digital) Possible weak signal, Radio (analogue) Possible weak signal, Radio (digital) Possible weak signal. [DUK]
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