menuMENU    UK Free TV logo Freeview



Click to see updates

Freeview Light on the Ynysowen (Merthyr Tydfil, Wales) transmitter

first published this on - UK Free TV
sa_gmapsGoogle mapsa_bingBing mapsa_gearthGoogle Earthsa_gps51.684,-3.329 or 51°41'2"N 3°19'45"Wsa_postcodeCF48 4SX


The symbol shows the location of the Ynysowen (Merthyr Tydfil, Wales) transmitter which serves 3,000 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 Ynysowen (Merthyr Tydfil, Wales) transmitter.

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

Which Freeview channels does the Ynysowen 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.

 V max
C33 (570.0MHz)366mDTG-16W
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

 V max
C36 (594.0MHz)366mDTG-16W
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 ITV1 +1 (Wales),

 V max
C48 (690.0MHz)366mDTG-16W
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, 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 43 Freeview channels?

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

The Ynysowen (Merthyr Tydfil, Wales) mast is a public service broadcasting (PSB) transmitter, it does not provide these commercial (COM) channels: 4seven, 5Action, 5STAR, 5USA, Al Jazeera Eng, Blaze, Blaze +1, CBS Reality, Challenge, Channel 5 +1, CITV, YAAAS!, Dave, Dave ja vu, DMAX, Drama +1, E4 Extra, Film4 +1, Food Network, GB News, GREAT! movies, GREAT! movies action, HGTV, HobbyMaker, ITV2 +1, ITV3 +1, ITV4 +1, ITVBe +1, Legend, PBS America, pick, Pop Player, Quest +1, Quest Red, Really, Sky News, Smithsonian Channel, Talking Pictures TV, TCC, That's TV (UK), Together TV, 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 Ynysowen transmitter?

regional news image
BBC Wales Today 1.2m homes 4.7%
from Cardiff CF5 2YQ, 22km south-southeast (162°)
to BBC Wales region - 206 masts.
regional news image
ITV Cymru Wales 1.2m homes 4.7%
from Cardiff CF5 6XJ, 25km south (171°)
to ITV Wales region - 206 masts.

How will the Ynysowen (Merthyr Tydfil, Wales) transmission frequencies change over time?

1984-971997-981998-20102010-132013-182013-1719 Jun 2019
C50tv_off BBCBBBCB

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 3 Mar 10 and 31 Mar 10.

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

Analogue 1-4 80W
BBCA, D3+4, BBCB(-7dB) 16W

Which companies have run the Channel 3 services in the Wenvoe 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. Ynysowen 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.

Friday, 4 February 2011
4:27 PM
Merthyr Tydfil

Off-air due to power cut.

link to this comment
Josh's 3 posts GB
Saturday, 5 February 2011
Transmitter engineering

1:06 PM

YNYS OWEN transmitter - Freeview HD Digital TV Off Air from 01:18 yesterday to 08:28 yesterday [BBC]

link to this comment
Transmitter engineering's 139,672 posts xx

1:06 PM

Josh: The service was restored yesterday at 0828, according the BBC.

link to this comment
Briantist's 38,844 posts GB
Transmitter engineering

3:06 PM

YNYS OWEN transmitter - Freeview BBC Digital TV Off Air from 01:18 yesterday to 08:28 yesterday [BBC]

link to this comment
Transmitter engineering's 139,672 posts xx
Saturday, 24 December 2011
8:56 PM
Merthyr Tydfil

Hello. Just after a little advice if possible.
Postcode is CF484RT.
I am right under the Ynysowen transmitter, but if i understand some posts here i may be better off trying to retune to the Wenvoe transmitter.
Is that a matter of re-positioning the aerial i have which is currently out the back pointing upwards to the transmitter? I'm guessing the aerial is quite old also so would it be worth upgrading it?

link to this comment
Barry's 2 posts GB
Dave Lindsay

9:14 PM

Barry: It is quite possible that the aerial you have now is a Group C/D one, which means that it is specifically designed for a certain range of frequencies (C/D).

Wenvoe uses Group B channels (frequencies) and so you will probably have to have a different aerial for this reason alone. For Wenvoe your aerial will need to be horizontally polarised, rather than vertically so for Ynysownen.

You don't have direct line of sight to Wenvoe, so I would be surprised if you might need a larger aerial. Have a look around at your neighbours and see what they have done (if they use Wenvoe).

link to this comment
Dave Lindsay's 5,724 posts GB
Dave Lindsay

9:26 PM

Barry: Sorry, my reply should say that "You don't have direct line of sight to Wenvoe, so I would *not* be surprised if you will need a larger aerial."

A look on Google Streetview shows that houses adjacent to Top Gear Garage are on Wenvoe.

link to this comment
Dave Lindsay's 5,724 posts GB
Monday, 26 December 2011
8:27 AM
Merthyr Tydfil

Cheers for the advice Dave.
We have an old Sky box from an expired subscription so can pick up the residual channels from that, but at some point that's going to stop working and i want to be as best prepared for that day as possible.
I may just get someone in to see if they can check if we could get the signal required from Wenvoe.

link to this comment
Barry's 2 posts GB
Tuesday, 20 March 2012
David Rolles
6:19 PM
Merthyr Tydfil

I have an outdoor ariel tuned to wenvoe with
a boosted splitter on it along with other boosters, my television in the lounge is alright but the tv in the bedroom looses the signal intermitently

link to this comment
David Rolles's 1 post GB
Dave Lindsay

7:30 PM

David Rolles: It's a good idea to confirm that the TV is tuned to the signals from Wenvoe and not Ynysowen or Methyr transmitters.

Ynysowen or Methyr only broadcast Public Service channels, so Commercial ones must be coming from Wenvoe.

Look at the UHF channel it is tuned to on one service from each multiplex. This information is usually given on the signal strength screen.

BBC One is C41 from Wenvoe, C59 from Ynysowen and C25 from Merthyr. ITV1 is C44 from Wenvoe, C55 from Ynysowen and C22 from Merthyr. BBC One HD is C47 from Wenvoe, C62 from Ynysowen and C28 from Merthyr.

Because of the spacing out of the frequencies used by Wenvoe and the other transmitters, it's possible to have the aerial unplugged for parts of the scan to ensure only Wenvoe is picked up.

Have it unplugged up to 30% and then unplug again at 65%.

link to this comment
Dave Lindsay's 5,724 posts GB
Select more comments

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.

UK Free TV is here to help people. If you are rude or disrespectful all of your posts will be deleted and you will be banned.

Privacy policy: UK Free Privacy policy.