Freeview Light on the Cefn Mawr A (Denbighshire, Wales) transmitter

Brian Butterworth first published this on 1st May 2004 at 08:20 - UK Free TV

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52.961,-3.093 or 52°57'38"N 3°5'34"W

LL20 7RT

The symbol shows the location of the Cefn Mawr A (Denbighshire, Wales) transmitter which serves less than 500 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 Cefn Mawr A (Denbighshire, Wales) transmitter.

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

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Which Freeview channels does the Cefn Mawr A 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.

Mux	H/V	Frequency	Height	Mode	Watts
PSB1 BBCA	V max	C33 (570.0MHz)	245m	DTG-	50W
	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	C36 (594.0MHz)	245m	DTG-	50W
	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), 71 That’s 60s,
PSB3 BBCB	V max	C48 (690.0MHz)	245m	DTG-	50W
	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 66 TBN UK,

H/V: aerial position (horizontal or vertical)

Are you trying to watch these 44 Freeview channels?

The Cefn Mawr A (Denbighshire, Wales) mast is a public service broadcasting (PSB) transmitter, it does not provide these commercial (COM) channels: U&Yesterday, 4seven, 5Action, 5STAR, 5USA, Al Jazeera Eng, Al Jazeera English, Blaze, Blaze +1, Challenge, Channel 5 +1, DMAX, E4 Extra, YAAAS!, Film4 +1, Food Network, FRANCE 24 (in English), GREAT! action, GREAT! christmas, GREAT! movies, GREAT! romance mix, 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, That's 90s, That's TV 2, Together TV, TRUE CRIME, TRUE CRIME XTRA, U&Dave, U&Dave ja vu, U&Drama +1, U&W.

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 Cefn Mawr A transmitter?

BBC Wales Today 1.2m homes 4.7%
from Cardiff CF5 2YQ, 163km south (185°)
to BBC Wales region - 206 masts.

ITV Cymru Wales 1.2m homes 4.7%
from Cardiff CF5 6XJ, 167km south (186°)
to ITV Wales region - 206 masts.

How will the Cefn Mawr A (Denbighshire, Wales) transmission frequencies change over time?

	1984-97	1997-98	1998-2009	2009-13	27 Feb 2019
	C/D E	C/D E	C/D E	C/D E T	K T
C33					BBCA
C36					D3+4
C48					BBCB
C53_{tv_off}				D3+4
C54_{tv_off}	C4_waves	C4_waves	C4_waves
C57_{tv_off}				BBCA
C58_{tv_off}	BBC1_waves	BBC1_waves	BBC1_waves
C60_{tv_off}				BBCB
C61	ITV_waves	ITV_waves	ITV_waves
C64	BBC2_waves	BBC2_waves	BBC2_waves

_{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 28 Oct 09 and 25 Nov 09.

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

Analogue 1-4	160W
BBCA, D3+4, BBCB	(-5.1dB) 50W

Local transmitter maps

Cefn Mawr A Freeview Moel-Y-Parc TV region BBC Wales Wales

Which companies have run the Channel 3 services in the Moel-Y-Parc transmitter area

Sep 1962-Jul 1964	Wales (West and North) Television (Teledu Cymru)
Jul 1964-Jul 1968	Television Wales and the West
Jul 1968-Feb 2004	Harlech Television
Feb 2004-Dec 2014	ITV plc

Feb 1983-Dec 1992	TV-am•
Jan 1993-Sep 2010	GMTV•
Sep 2010-Dec 2014	ITV Daybreak•

• Breakfast ◊ Weekends ♦ Friday night and weekends † Weekdays only. Cefn Mawr A 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.

Is the transmitter output the same in all directions?

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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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