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Freeview Light on the Llanelli (Carmarthenshire, Wales) transmitter

first published this on - UK Free TV
sa_gmapsGoogle mapsa_bingBing mapsa_gearthGoogle Earthsa_gps51.700,-4.157 or 51°41'59"N 4°9'27"Wsa_postcodeSA15 4HP

 

The symbol shows the location of the Llanelli (Carmarthenshire, Wales) transmitter which serves 11,000 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 Llanelli (Carmarthenshire, Wales) transmitter.

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

Which Freeview channels does the Llanelli 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
 V max
C39 (618.0MHz)143mDTG-20W
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, plus 14 others

PSB2
D3+4
 V max
C45 (666.0MHz)143mDTG-20W
Channel icons
5 Channel 5, 6 ITV 2, 10 ITV3, 13 E4, 14 Film4, 15 Channel 4 +1 South ads, 18 More4, 26 ITV4, 28 ITVBe, 30 E4 +1, 35 ITV1 +1 (Wales),

PSB3
BBCB
 V max
C42 (642.0MHz)143mDTG-20W
Channel icons
46 5SELECT, 101 BBC One HD Wales, 102 BBC Two HD Wales, 104 Channel 4 HD South ads, 105 Channel 5 HD, 106 BBC Four HD, 110 Channel 4 HD (Wales), 204 CBBC HD, 205 CBeebies HD, plus 1 others

H/V: aerial position (horizontal or vertical)

Are you trying to watch these 44 Freeview channels?

the effected channels
the effected channels
the effected channels
the effected channels

The Llanelli (Carmarthenshire, Wales) mast is a public service broadcasting (PSB) transmitter, it does not provide these commercial (COM) channels: 4seven, 5Action, 5STAR, 5USA, Al Jazeera Eng, Al Jazeera English, Blaze, Blaze +1, Challenge, Channel 5 +1, Dave, Dave ja vu, DMAX, Drama +1, E4 Extra, YAAAS!, Film4 +1, Food Network, GREAT! action, GREAT! movies, GREAT! romance mix, GREAT! romance, HGTV, HobbyMaker, ITV2 +1, ITV3 +1, ITV4 +1, ITVBe +1, Legend, PBS America, Quest +1, Quest Red, Really, Sky Mix, Sky News, Talking Pictures TV, TCC, That's 90s, That's TV 2, Together TV, TRUE CRIME, TRUE CRIME XTRA, W, Yesterday +1.

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 Llanelli transmitter?

regional news image
BBC Wales Today 1.2m homes 4.7%
from Cardiff CF5 2YQ, 68km east-southeast (110°)
to BBC Wales region - 206 masts.
regional news image
ITV Cymru Wales 1.2m homes 4.7%
from Cardiff CF5 6XJ, 67km east-southeast (114°)
to ITV Wales region - 206 masts.

How will the Llanelli (Carmarthenshire, Wales) transmission frequencies change over time?

1950s-80s1984-971997-981998-20092009-1331 Dec 2019-
VHFEEEB E TB E K T
C3BBCtvwaves
C39BBC1wavesBBC1wavesBBC1waves BBCA
C42BBCBBBCB
C45BBC2wavesBBC2wavesBBC2wavesD3+4D3+4
C49tv_offITVwavesITVwavesITVwavesBBCA
C67C4wavesC4wavesC4waves

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 26 Aug 09 and 23 Sep 09.

How do the old analogue and currrent digital signal levels compare?

Analogue 1-4 100W
BBCA, D3+4, BBCB(-7dB) 20W

Which companies have run the Channel 3 services in the Carmel 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. Llanelli 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
Thursday, 7 June 2012
Transmitter engineering
sentiment_very_satisfiedOwner

10:28 AM

LLANELLI transmitter - Freeview BBC Digital TV Off Air from 04:44 on 05 Jun to 05:35 on 05 Jun HD Digital TV Off Air from 04:44 on 05 Jun to 05:35 on 05 Jun [BBC]

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Transmitter engineering's 149,799 posts xx flag
Thursday, 6 September 2012
A
Adam Rodriguez
9:31 PM
Llanelli

Hi there. I hope you can help me. I live in sa15 1nn down the bottom of the hill and my tv signal is terrible. Only channels 1-5 work well. All the other channels are un watchable. I called a guy out and he claimed I should be getting a decent signal.
Please advise.
Thank you

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Adam Rodriguez's 1 post GB flag
Adam's: ...
Friday, 7 September 2012
Dave Lindsay
sentiment_very_satisfiedPlatinum

12:10 AM

Adam Rodriguez: I wonder if the guy may be right if your aerial is pointing at the Llanelli transmitter which carries Public Service channels only.

Refer to this page for services by multiplex (those with a bullet in the "W" for Wales column apply):

DTG :: DTT Services by Multiplex

There are six multiplexes, each of which is a single signal which carries multiple services. In summary there is:

PSB1/BBCA | BBC One, BBC Two etc
PSB2/D3&4 | ITV1, ITV2, S4C, Channel 4, Channel 5 etc
PSB3/BBCB | BBC One HD, BBC HD, ITV1HD, S4C Clirlun
COM4/SDN | ITV3, QVC, bid etc
COM5/ArqA | Pick TV, Dave, Really etc
COM6/ArqB | Yesterday, Film4, 4Music etc

The Public Service Broadcaster (PSB) channels are carried by all transmitters. The Commercial ones (COM) are only carried by the main transmitters and large relays. This means that there is a portion of the population that is unable to receive the COMs (some of which may have them intermittantly).

You say that you have logical channel numbers 1 to 5 which means that you must be receiving PSB1 and PSB2. If your set isn't a HD one, then you won't be able to receive PSB3 even though it is available. I conclude that it is the COMs only which you are having difficulty with. Is this correct?

You've posted on the page for the Llanelli transmitter and it is PSB-only. So if your aerial points at it, then you are receiving what it broadcasts and therefore the gentleman is quite correct. From your location the Llanelli transmitter is north and your aerial will be vertical (elements up/down).

If your aerial points to Llanelli and the TV has tuned in the COMs, then these must be coming from another transmitter which is likely to be in another direction to which the aerial faces and so this is liable to result in poor reception (of those channels). Based on the Digital UK predictor, I wonder if it is the case that your aerial is on Llanelli, that the COMs your receiver has tuned in are those of Kilvey Hill which is a full-Freeview transmitter and is also vertically polarised.

Or if your aerial points to Wenvoe (a bit clockwise of east, aerial horizontal), then this is also a full-Freeview transmitter, but its COMs broadcast on the same channels/frequencies as the three PSBs from Llanelli, so you may find that reception of the COMs is wiped out thanks to that.

Or you "may" be able to receive a full service from Carmel which is clockwise of north, with your aerial horizontal.

Find out which transmitter(s) your receiver is tuned to for each multiplex by viewing the signal strength screen whilst on one of the services.

Those that "may" be available to you are:

- Llanelli: PSB1=C49, PSB2=C45, PSB3=C42
- Kilvey Hill: PSB1=C23, PSB2=C26, PSB3=C29, COM4=C25, COM5=C22, COM6=C28
- Wenvoe: PSB1=C41, PSB2=C44, PSB3=C47, COM4=C42*, COM5=C45*, COM6=C49*
- Carmel: PSB1=C60, PSB2=C53, PSB3=C57, COM4=C54, COM5=C58, COM6=C61

* Wenvoe's COMs co-channel with Llanelli's PSBs.

For example, tune to ITV3 and bring up the signal strength screen. ITV3 is carried on COM4, so if it says that it is tuned to UHF channel 25 then it is coming from Kilvey Hill.

There is no guarantee that you can receive from any of the other transmitters. Even reception of the COMs off-beam of the aerial isn't forced to mean that an aerial pointing in the correct direction will result in reliable reception of those channels.

My money is on your aerial being on Llanelli and the three COMs being tuned to Kilvey Hill.

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Dave Lindsay's 5,724 posts GB flag
Monday, 28 July 2014
Transmitter engineering
sentiment_very_satisfiedOwner

10:38 AM

LLANELLI transmitter - RelayPossible service interruptions [DUK]

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Transmitter engineering's 149,799 posts xx flag
Monday, 27 April 2015
Transmitter engineering
sentiment_very_satisfiedOwner

9:09 AM

LLANELLI transmitter - RelayPossible service interruptions [DUK]

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Transmitter engineering's 149,799 posts xx flag
Monday, 29 August 2016
Transmitter engineering
sentiment_very_satisfiedOwner

4:09 PM

LLANELLI transmitter - Possible service interruptions [DUK]

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Transmitter engineering's 149,799 posts xx flag
Tuesday, 6 September 2016
Transmitter engineering
sentiment_very_satisfiedOwner

12:09 AM

LLANELLI transmitter - Possible service interruptions [DUK]

link to this comment
Transmitter engineering's 149,799 posts xx flag
Friday, 16 July 2021
Transmitter engineering
sentiment_very_satisfiedOwner

5:09 PM

Llanelli transmitter - Llanelli transmitter: Possible effect on TV reception week commencing 12/07/2021 Screen may go black on some or all channels [DUK]

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Transmitter engineering's 149,799 posts GB flag
Sunday, 18 July 2021
Transmitter engineering
sentiment_very_satisfiedOwner

11:17 PM

Llanelli transmitter - Llanelli transmitter: Possible effect on TV reception week commencing 19/07/2021 Screen may go black on some or all channels [DUK]

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Transmitter engineering's 149,799 posts GB flag
Monday, 26 July 2021
Transmitter engineering
sentiment_very_satisfiedOwner

9:09 AM

Llanelli transmitter - Llanelli transmitter: Possible effect on TV reception week commencing 26/07/2021 Screen may go black on some or all channels [DUK]

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Transmitter engineering's 149,799 posts GB flag
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