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Full Freeview on the Llanddona (Isle of Anglesey, Wales) transmitter

first published this on - UK Free TV
sa_streetviewGoogle Streetviewsa_gmapsGoogle mapsa_bingBing mapsa_gearthGoogle Earthsa_gps53.307,-4.128 or 53°18'25"N 4°7'41"Wsa_postcodeLL58 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.

This transmitter has no current reported problems

The BBC and Digital UK report there are no faults or engineering work on the Llanddona (Isle of Anglesey, Wales) transmitter.

Choose from three options: ■ List by multiplex ■ List by channel number ■ List by channel name
_______

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.

MuxH/VFrequencyHeightModeWatts
PSB1
BBCA
 H max
C40 (626.0MHz)255mDTG-320,000W
Channel icons
1 BBC One (SD) Wales, 2 BBC Two Wales, 9 BBC Four, 23 BBC Three, 201 CBBC, 202 CBeebies, 231 BBC News, 232 BBC Parliament, 250 BBC Red Button, plus 13 others

PSB2
D3+4
 H max
C43- (649.8MHz)255mDTG-320,000W
Channel icons
5 Channel 5, 6 ITV 2, 10 ITV3, 14 Film4, 15 Channel 4 +1 South ads, 18 More4, 26 ITV4, 30 E4 +1, 35 ITV +1 (Wales),

PSB3
BBCB
 H max
C46 (674.0MHz)255mDTG-620,000W
Channel icons
56 5SELECT, 101 BBC One HD Wales, 102 BBC Two HD (England), 104 Channel 4 HD South ads, 105 Channel 5 HD, 106 BBC Four HD, 204 CBBC HD, 205 CBeebies HD, plus 1 others

COM4
SDN
 H -3dB
C41 (634.0MHz)255mDTG-810,000W
Channel icons
 E4 (Wales), 12 Quest, 20 Drama, 21 5USA, 29 ITV2 +1, 32 5STAR, 33 5Action, 41 Legend, 46 Channel 5 +1, 58 ITVBe +1, 59 ITV3 +1, 64 Blaze, 67 CBS Reality, 74 Dave ja vu, 78 TCC, 81 Blaze +1, 89 ITV4 +1, 203 CITV, 208 Pop Player, 211 Ketchup TV, 212 YAAAS!, plus 14 others

COM5
ArqA
 H -3dB
C44 (658.0MHz)255mDTG-810,000W
Channel icons
11 Sky Arts, 17 Really, 19 Dave, 31 E4 Extra, 36 pick, 40 Quest Red, 43 Food Network, 47 Film4 +1, 48 Challenge, 49 4seven, 57 Smithsonian Channel, 60 Drama +1, 70 Quest +1, 75 Yesterday +1, 83 Together TV, 233 Sky News, plus 9 others

COM6
ArqB
 H -3dB
C47 (682.0MHz)255mDTG-810,000W
Channel icons
 FreeSports, 25 W, 27 Yesterday, 34 GREAT! movies, 39 DMAX, 44 HGTV, 71 Quest Red +1, 73 HobbyMaker, 82 Talking Pictures TV, 84 PBS America, 91 Classic Hits, 235 Aljazeera English, plus 18 others

DTG-3 64QAM 8K 2/3 24.1Mb/s DVB-T MPEG2
DTG-6 256QAM 32KE 2/3 40.2Mb/s DVB-T2 MPEG4
DTG-8 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?

regional news image
BBC Wales Today 1.2m homes 4.7%
from Cardiff CF5 2YQ, 210km south-southeast (164°)
to BBC Wales region - 206 masts.
regional news image
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-80s1984-971997-981998-20092009-1314 Nov 122013-1714 Nov 2018
VHFC/D EC/D EC/D EE TE TE TB E T
C1BBCtvwaves
C40 ArqBArqBBBCA
C41SDN
C43SDNSDNSDND3+4
C44ArqA
C46ArqAArqAArqABBCB
C47ArqB
C50tv_offArqB
C51tv_off_local_local_local_local
C53tv_offC4wavesC4wavesC4wavesBBCBBBCBBBCB
C57tv_offBBC1wavesBBC1wavesBBC1wavesBBCABBCABBCA
C60tv_offITVwavesITVwavesITVwaves-D3+4-D3+4-D3+4
C63BBC2wavesBBC2wavesBBC2waves

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

Jan 1958-Jul 1968Television Wales and the West
Jul 1968-Feb 2004Harlech Television
Feb 2004-Dec 2014ITV plc
Feb 1983-Dec 1992TV-am•
Jan 1993-Sep 2010GMTV•
Sep 2010-Dec 2014ITV Daybreak•
• Breakfast ◊ Weekends ♦ Friday night and weekends † Weekdays only. Llanddona was not an original Channel 3 VHF 405-line mast: the historical information shown is the details of the company responsible for the transmitter when it began transmitting Channel 3.

Comments
Tuesday, 7 December 2021
M
Mel Nevitt
1:23 PM
Caernarfon

I live most of the year at LL54 5RS. and have recently purchased a LG oled smart TV. We have a hightail aerial pointing towards Llandonna transmitter on Anglesey. We borrowed a Panasonic TV to test the reception before we decided to have a TV in our home. The Panasonic was able to receive BBC HD BBC 2 HD and all ITV HD channels.
The LG channel search will not find Channels 101, 102 etc and nothing between 100 to 201??
I have either not got a setting right on the TV or those channels are not available from the Llandonna transmitter. I am 75 and just venturing into the world of a television . Please help. Cofion Mel

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Mel Nevitt's 1 post GB
S
StevensOnln1
sentiment_very_satisfiedPlatinum

2:29 PM

Mel Nevitt: Your postcode is predicted to have good reception from Llanddona which is only 22km away. You should certainly be able to receive BBC One HD, BBC Two HD, ITV HD, Channel 4 HD & Channel 5 HD on 101-105 as these channels are broadcast from every transmitter. Try going in to the manual tuning option on the TV's menu and do a scan of UHF channel 46.

link to this comment
StevensOnln1's 3,357 posts GB
Saturday, 18 December 2021
M
Mark Scarratt
11:01 PM

I live in Dwygyfylchi and experience regular issues of interference of multiple TV channels
Probably about 2 or 3 times per month I have issues with all BBC channels but never all channels at the same time. The latest issues are today 18/12/21

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Mark Scarratt's 1 post GB
Sunday, 19 December 2021
C
Chris.SE
sentiment_very_satisfiedPlatinum

3:12 AM

Mark Scarratt:

I assume you mean the BBC SD channels today (18/12) or does that include the HD ones as well?
When exactly was the previous occasion?

I can't find any faults listed for the transmitter and it's not been listed for Planned Engineering since the end of October. Most parts of your area should have very good reception from Llanddonna but without a full postcode the predicted reception in your locale can't be confirmed, it's possible you may be in an awkward spot!

It's possible that your problem today is weather related.
There is currently some moderate to strong temperature inversion/tropospheric ducting conditions affecting large parts of the UK and these weather conditions can disrupt reception for brief or longer periods. The conditions are predicted to last on and off for a few days.
The BBC currently have a warning in place.

That said there are a number of things worth checking.

Is your aerial external or loft mounted? How old is it (roughly)? Do you have a distribution amp/splitter?
Have you changed anything in your set up since this first started?

I would check that your aerial seems intact and pointing in the correct direction and that your downlead looks undamaged (especially if it is old) and not flapping in the wind if external. Also check all your coax plugs, connections, flyleads etc, behind the TV, unplug connectors check for corrosion or other problems and reconnect them. Flyleads are a common problem, try swapping/changing them.

If you ever retuned at anytime when you had no signal, that's never recommended as it usually just clears the correct tuning or you may end up tuned to weak signals from another transmitter.

Check in your TV's Tuning Section that you are tuned to the correct UHF channels for Llanddonna. These are C40, C43, C46, C41, C44, C47 in the order PSB1/BBCA, PSB2/D3&4, PSB3/BBCB HD, SDN/COM4, ArqA/COM5, ArqB/COM6
To be clear, the Main BBC SD Channels would be on multiplex BBCA UHF channel C40.

Check that you don't have any trees that have grown high that are on the line of sight to the transmitter (or very very close by) or things like scaffolding or new buildings.

See what signal strengths and quality you are getting for the multiplexes (groups of channels) shown in your TV's tuning section, that information may indicate issues with your aerial or downlead or possibly any distribution amp/splitter you may have.

Problematic connections, water ingress etc. can seem to affect reception of just an individual or several multiplexes.

Make sure you don't have any HDMI leads near unscreened/poorly screened flyleads/aerial leads as HDMI has been known to cause interference.

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Chris.SE's 3,039 posts GB
Saturday, 1 January 2022
M
Mark Roberts
6:16 PM
Llanfairpwllgwyngyll

why dont i have a signal on my freeview tv upstairs this was ok when i went to bed last night have tried to re tune still nothing my post code is ll61 6ny llanfairpwll.

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Mark Roberts's 2 posts GB
C
Chris.SE
sentiment_very_satisfiedPlatinum

11:13 PM

Mark Roberts:

The transmitter hasn't had any current or recent reported faults and isn't currently listed for Planned Engineering.

You don't mention whether your upstairs TV has a separate aerial.
If it's the same aerial as the downstairs TV, does that have a signal?
Has the signal returned now to the Upstairs TV?
If so, it was probably the weather conditions at the time.
There has been some Temperature Inversion/Tropospheric Ducting which has been disrupting signals in various parts of the UK for some.

Essentially it results in interfering signals from other transmitters in the UK or Europe reaching you and so your wanted signals are disrupted. It won't necessarily affect all multiplexes or necessarily at the same time if more than one. It can last for seconds, minutes, sometimes hours or longer.
Despite the incorrect spelling, this link does work - simple technical explanation
https://www.bbc.co.uk/rec….jpg

It's always possible these conditions may affect you again during the next 24hrs according to some current predictions.

If you continue to have problems, post back with more detail about your aerial installation(s), any distribution amp/splitter etc.

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Chris.SE's 3,039 posts GB
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Your comment please
Please post a question, answer or commentIf you have Freeview reception problems before posting a question your must first do this Freeview reset procedure then see: Freeview reception has changed, Single frequency interference, and Freeview intermittent interference.

If you have no satellite signal, see Sky Digibox says 'No Signal' or 'Technical fault'

If you have other problems, please provide a full (not partial) postcode (or preferably enter it in box at the top right) and indicate where if aerial is on the roof, in the loft or elsewhere.

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