menuMENU    UK Free TV logo Freeview



Click to see updates

Freeview Light on the Morfa Nefyn (Gwynedd, Wales) transmitter

first published this on - UK Free TV
sa_gmapsGoogle mapsa_bingBing mapsa_gearthGoogle Earthsa_gps52.892,-4.551 or 52°53'32"N 4°33'3"Wsa_postcodeLL53 8UE


The symbol shows the location of the Morfa Nefyn (Gwynedd, Wales) transmitter which serves 900 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 Morfa Nefyn (Gwynedd, Wales) transmitter.

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

Which Freeview channels does the Morfa Nefyn 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
C25 (506.0MHz)151mDTG-328W
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
C28 (530.0MHz)151mDTG-328W
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
C22 (482.0MHz)151mDTG-628W
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

DTG-3 64QAM 8K 2/3 24.1Mb/s DVB-T MPEG2
DTG-6 256QAM 32KE 2/3 40.2Mb/s DVB-T2 MPEG4
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 Morfa Nefyn (Gwynedd, Wales) mast is a public service broadcasting (PSB) transmitter, it does not provide these commercial (COM) channels: 4seven, 5Action, 5STAR, 5USA, Aljazeera English, 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 MAX, 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 Morfa Nefyn transmitter?

regional news image
BBC Wales Today 1.2m homes 4.7%
from Cardiff CF5 2YQ, 180km south-southeast (151°)
to BBC Wales region - 206 masts.
regional news image
ITV Cymru Wales 1.2m homes 4.7%
from Cardiff CF5 6XJ, 182km south-southeast (152°)
to ITV Wales region - 206 masts.

How will the Morfa Nefyn (Gwynedd, Wales) transmission frequencies change over time?

1984-971997-981998-20092009-1331 Dec 2018-

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 90W
BBCA, D3+4, BBCB(-5.1dB) 28W

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. Morfa Nefyn 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.

Tuesday, 30 November 2021
Transmitter engineering

3:13 PM

MORFA NEFYN transmitter - Freeview: Off the air due to a fault from 28 Nov 06:58 until 28 Nov 13:18. Off the air due to a fault from 27 Nov 12:09 until 27 Nov 16:38. . [BBC]

link to this comment
Transmitter engineering's 138,029 posts GB
Thursday, 2 December 2021
Transmitter engineering

6:14 PM

MORFA NEFYN transmitter - Freeview: Off the air due to a fault from 28 Nov 06:58 until 28 Nov 13:18. . [BBC]

link to this comment
Transmitter engineering's 138,029 posts GB
Friday, 17 December 2021
9:26 PM

signal off since 7.00pm still wating??

link to this comment
HF's 1 post GB
Saturday, 18 December 2021

12:46 AM


There is currently some moderate 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 for a few days.
This is what appears to have affected your reception -
BBC report - Morfa Nefyn - Freeview: Weather conditions may be affecting your reception from 17 Dec 18:50 until 17 Dec 19:09. .
Conditions can change by the second, minute, hour and not all multiplexes may be affected or not even at the same time if more than one. You may have lost your signal and it may have returned several times.

I hope you didn't retune whilst you had no signal as this will likely have just cleared your correct tuning and you could even get tuned to weak interfering signals which eventually disappear.

Current BBC Warning -
Latest Freeview works and warnings
High pressure impacting TV and Radio services across parts of the UK

Some viewers across parts of the UK might experience short-term interference to BBC television and radio service. This is being caused by a zone of high pressure, which causes problems to the links between transmitters and it also increases interfering signals in specific areas, which results in poor reception.

The conditions can move and change which makes it difficult to know where it will hit next. You can check if the problem is impacting your local transmitter using the transmitter checker tool. If there are no faults displayed it is possible the problem is impacting your radio or television system directly.

The majority of the BBC's transmissions are not affected by this period of interference, as the BBC's networks are engineered to be generally very robust. Television viewers may experience slight occasional pixelation or break-up or loss of service. Radio listeners may experience break-up of their services. Cable and satellite services are not affected.

At these times, there is nothing you can do but wait until the weather changes. You should not re-tune your television or radio when this happens.

If you have retuned your TV and continue to have problems with missing channels, or reception problems, as a result of the high pressure, you'll have to retune again once the weather has cleared.

More information explaining why these weather conditions cause problems can be found here -
How does good weather affect my television? | Help receiving TV and radio

link to this comment
Chris.SE's 3,170 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.