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Freeview Light on the Caernarfon (Gwynedd, Wales) transmitter

first published this on - UK Free TV
sa_gmapsGoogle mapsa_bingBing mapsa_gearthGoogle Earthsa_gps53.142,-4.265 or 53°8'30"N 4°15'54"Wsa_postcodeLL55 1BT

 

The symbol shows the location of the Caernarfon (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 Caernarfon (Gwynedd, Wales) transmitter.

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

Which Freeview channels does the Caernarfon 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
C24 (498.0MHz)28mDTG-5W
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
C27 (522.0MHz)28mDTG-5W
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
C21+ (474.2MHz)28mDTG-5W
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 Caernarfon (Gwynedd, 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 Caernarfon transmitter?

regional news image
BBC Wales Today 1.2m homes 4.7%
from Cardiff CF5 2YQ, 196km south-southeast (160°)
to BBC Wales region - 206 masts.
regional news image
ITV Cymru Wales 1.2m homes 4.7%
from Cardiff CF5 6XJ, 199km south-southeast (161°)
to ITV Wales region - 206 masts.

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

1984-971997-981998-20092009-1331 Dec 2018-
A K TA K TA K TA K TA K T
C21BBC1wavesBBC1wavesBBC1waves+BBCBBBCB
C24ITVwavesITVwavesITVwavesBBCABBCA
C27BBC2wavesBBC2wavesBBC2wavesD3+4D3+4
C31C4wavesC4wavesC4waves

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?

BBCA, D3+4, BBCB 5W
Analogue 1-4(-4dB) 2W

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. Caernarfon 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, 29 July 2021
Transmitter engineering
sentiment_very_satisfiedOwner

3:11 PM

CAERNARFON transmitter - Freeview: Weather conditions may be affecting your reception from 26 Jul 02:51 until 26 Jul 02:58. . [BBC]

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Transmitter engineering's 149,799 posts GB flag
Tuesday, 21 September 2021
Transmitter engineering
sentiment_very_satisfiedOwner

4:49 PM

CAERNARFON transmitter - Freeview: Off the air due to a fault from 21 Sep 16:27 until 21 Sep 16:31. . [BBC]

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Transmitter engineering's 149,799 posts GB flag
Saturday, 4 December 2021
C
Clare Dobie
8:54 PM
Caernarfon

I have had no free view connection for two days now. I live in ll54 5al area. And contrary to statements there is no problem in thisl there is no problem there is. Last week no signal for a day. Sort this out its not on

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Clare Dobie's 1 post GB flag
Clare's: ...
Sunday, 5 December 2021
C
Chris.SE
sentiment_very_satisfiedPlatinum

4:19 AM

Clare Dobie:

Not quite sure why you've posted on the Caernarfon transmitter page, it's a very very low power relay, miles from you and your postcode is not predicted to get any signals from it. You are predicted to get good signals from the Trefor relay.

By the way, this is an independent technical helpsite, we are not the broadcasters or transmitter engineering.

If you are getting signals from Trefor, your aerial should be pointing fractionally west of NW (bearing 307 degrees) with its rods (or squashed Xs) vertical. There is also predicted good signals from Preseli however they may be more subject to changes in some weather conditions, a reliable local aerial installer may know (the aerial would be pointing fractionally west of due S). There's also predicted reception from Blaenplwyf but those signals would be poor/variable/or none depending on multiplex (groups of channels).

None of the transmitters mentioned have had/got any reported faults recently that I can find. With the recent weather conditions it's possible Trefor may have suffered brief power outages.
I would check with your neighbours if they are receiving Freeview OK because there's a possibility the weather may have done damage to your aerial installation.

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). Also check all your coax plugs, connections, flyleads etc, especially if you've changed anything in your installation recently, unplug connectors check for corrosion or other problems and reconnect them. Flyleads are a common problem, try swapping/changing them. See what signal strengths and quality you are getting for the multiplexes (groups of channels) shown in your TV's tuning section.
The correct UHF channel tuning for Trefor is C32, C34, C35 (C means channel) for the 3 PSB multiplexes.

If you have changed anything in your setup, make sure you don't have any HDMI leads near unscreened/poorly screened flyleads/aerial leads as HDMI has been known to cause interference.

link to this comment
Chris.SE's 4,102 posts GB flag
Monday, 19 December 2022
Transmitter engineering
sentiment_very_satisfiedOwner

5:09 AM

CAERNARFON transmitter - Freeview: Weather conditions may be affecting your reception from 19 Dec 02:27. . [BBC]

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Transmitter engineering's 149,799 posts GB flag
Transmitter engineering
sentiment_very_satisfiedOwner

8:13 AM

CAERNARFON transmitter - Freeview: Weather conditions may be affecting your reception from 19 Dec 07:03 until 19 Dec 07:10. Weather conditions may be affecting your reception from 19 Dec 02:27 until 19 Dec 03:33. . [BBC]

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Transmitter engineering's 149,799 posts GB flag
Transmitter engineering
sentiment_very_satisfiedOwner

5:20 PM

CAERNARFON transmitter - Freeview: Weather conditions may be affecting your reception from 19 Dec 15:16 until 19 Dec 15:44. Weather conditions may be affecting your reception from 19 Dec 07:03 until 19 Dec 07:10. Weather conditions may be affecting your reception from 19 Dec 0 [BBC]

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Transmitter engineering's 149,799 posts GB flag
Saturday, 24 December 2022
Transmitter engineering
sentiment_very_satisfiedOwner

5:09 AM

CAERNARFON transmitter - Freeview: Weather conditions may be affecting your reception from 19 Dec 15:16 until 19 Dec 15:44. Weather conditions may be affecting your reception from 19 Dec 07:03 until 19 Dec 07:10. . [BBC]

link to this comment
Transmitter engineering's 149,799 posts GB flag
Transmitter engineering
sentiment_very_satisfiedOwner

8:20 AM

CAERNARFON transmitter - Freeview: Weather conditions may be affecting your reception from 19 Dec 15:16 until 19 Dec 15:44. . [BBC]

link to this comment
Transmitter engineering's 149,799 posts GB flag
Transmitter engineering
sentiment_very_satisfiedOwner

5:20 PM

CAERNARFON transmitter - Freeview: Weather conditions may be affecting your reception from 24 Dec 13:36. . [BBC]

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Transmitter engineering's 149,799 posts GB flag
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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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