Full Freeview on the Wenvoe (Cardiff, Wales) transmitter

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

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51.460,-3.282 or 51°27'35"N 3°16'57"W

CF5 6SA

The symbol shows the location of the Wenvoe (Cardiff, Wales) transmitter which serves 360,000 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.

Are there any planned engineering works or unexpected transmitter faults on the Wenvoe (Cardiff, Wales) mast?

Wenvoe transmitter - Wenvoe transmitter: Possible effect on TV reception week commencing 02/10/2023 Pixelation or flickering on some or all channels

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

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Which Freeview channels does the Wenvoe 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	H max	C41+ (634.2MHz)	384m	DTG-	100,000W
	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	H max	C44 (658.0MHz)	384m	DTG-	100,000W
	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	H max	C47 (682.0MHz)	384m	DTG-	100,000W
	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,
COM4 SDN	H -3dB	C42+ (642.2MHz)	384m	DTG-8	50,000W
	E4 (Wales), 20 Drama, 21 5USA, 29 ITV2 +1, 32 5STAR, 33 5Action, 38 Channel 5 +1, 41 Legend, 57 Dave ja vu, 58 ITVBe +1, 59 ITV3 +1, 64 Blaze, 67 CBS Reality, 68 RealityXtra, 78 TCC, 81 Blaze +1, 89 ITV4 +1, 91 WildEarth, 209 Ketchup TV, 210 Ketchup Too, 211 YAAAS!, 267 Al Jazeera English, plus 34 others
COM5 ArqA	H -3dB	C45+ (666.2MHz)	384m	DTG-8	50,000W
	Smithsonian Channel, 11 Sky Arts, 17 Really, 19 Dave, 31 E4 Extra, 36 pick, 40 Quest Red, 43 Food Network, 47 Film4 +1, 48 Challenge, 49 4seven, 60 Drama +1, 65 That's 60s, 70 Quest +1, 74 Yesterday +1, 75 That's 80s, 233 Sky News, plus 11 others
COM6 ArqB	H -3dB	C39+ (618.2MHz)	384m	DTG-8	50,000W
	Quest Red +1, Classic Hits, 12 Quest, 25 W, 27 Yesterday, 34 GREAT! movies, 39 DMAX, 44 HGTV, 52 Great! Movies Christmas, 56 That's TV (UK), 61 GREAT! movies +1, 63 Great! Movies Christmas 1, 71 That’s 60s, 73 HobbyMaker, 82 Talking Pictures TV, 83 Together TV, 84 PBS America, 235 Al Jazeera Eng, plus 20 others
LCF	H -10dB	C37 (602.0MHz)	384m	DTG-12	10,000W
	from 22nd September 2014: 8 Made in Cardiff,

DTG-8 64QAM 8K 3/4 27.1Mb/s DVB-T MPEG2
DTG-12 QSPK 8K 3/4 8.0Mb/s DVB-T MPEG2
H/V: aerial position (horizontal or vertical)

Which BBC and ITV regional news can I watch from the Wenvoe transmitter?

BBC Wales Today 1.2m homes 4.7%
from Cardiff CF5 2YQ, 6km northeast (42°)
to BBC Wales region - 206 masts.

ITV Cymru Wales 1.2m homes 4.7%
from Cardiff CF5 6XJ, 1km east-northeast (74°)
to ITV Wales region - 206 masts.

Are there any self-help relays?

Abergwesyn	Active deflector	7 km N Llanwrtyd Wells	20 homes
Barry	Transposer	10 km SW city centre	300 homes
Celtic Manor	Transposer	5 km E Newport	80 homes
Pentrebach	Transposer	3 km S Merthyr Tydfil	100 homes
Ystradfellte	Active deflector	30 km NE Port Talbot	20 homes

How will the Wenvoe (Cardiff, Wales) transmission frequencies change over time?

	1950s-80s	1984-97	1997-98	1998-2010	2010-13	2013-18	2013-17	15 May 2019
	VHF	B E T	B E T	B E T	B E T	B E K T	W T	W T
C5	BBCtv_waves
C30								LOCAL2
C31							com7	com7
C37							com8	com8
C39						+ArqB	+ArqB	ArqB
C41		ITV_waves	ITV_waves	ITV_waves	+BBCA	+BBCA	+BBCA	BBCA
C42					+SDN	+SDN	+SDN	SDN
C44		BBC1_waves	BBC1_waves	BBC1_waves	D3+4	D3+4	D3+4	D3+4
C45					+ArqA	+ArqA	+ArqA	ArqA
C47		C4_waves	C4_waves	C4_waves	BBCB	BBCB	BBCB	BBCB
C49_{tv_off}					+ArqB
C51_{tv_off}		BBC2_waves	BBC2_waves	BBC2_waves			LCF	LCF
C55_{tv_off}								com7_{tv_off}
C56_{tv_off}								COM8_{tv_off}

_{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	500kW
BBCA, D3+4, BBCB	(-7dB) 100kW
com8	(-9.7dB) 53.2kW
SDN, ARQA, ARQB	(-10dB) 50kW
com7	(-10.3dB) 47kW
Mux 1*, LCF	(-17dB) 10kW
Mux 2, Mux A, Mux B, Mux C, Mux D*	(-20dB) 5kW

Local transmitter maps

Wenvoe Freeview Wenvoe DAB Wenvoe TV region BBC Wales Wales

Which companies have run the Channel 3 services in the Wenvoe transmitter area

Jan 1958-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. Wenvoe 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?

R

Richard Smith
11:58 AM
Bridgend

Following on from my previous post, I am postal code CF31 2ND and I believe my is .

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Richard Smith's 3 posts GB flag

Richard's: R's Freeview map R's terrain plot R's frequency data R's Freeview Detailed Coverage

R

Richard Smith
12:09 PM

Problem solved. A simple retune cured the pixellation. Thank you for this website.

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Richard Smith's 3 posts GB flag

C

Chris.SE

_{sentiment_very_satisfied}Platinum

1:51 PM

Richard Smith:

Hi Richard. I'm glad you managed to solve the problem, thanks for the . Your main is indeed , but you may also get signals from a number of other transmitters in your location, being the strongest, then the (PSBs only), and some weak/variable signals from and in Devon.

If you happened to retune (or your set did it automatically) when you had no or badly pixellated signals, it often clears correct tuning and can tune to other signals. Maybe COM6 was down during the if this happened.
Generally it's not recommended to retune in those conditions if you were correctly tuned, just wait until signals return. (Same when adverse weather affects ).

Best thing is to check you are correctly tuned to Wenvoe's UHF (as listed at the very top of this page).

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Transmitter engineering

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9:46 AM

- Wenvoe transmitter: Possible effect on TV week commencing 01/05/2023 Pixelation or flickering on some or all [DUK]

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Transmitter engineering

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4:08 AM

- Wenvoe transmitter: Possible effect on TV week commencing 08/05/2023 Pixelation or flickering on some or all [DUK]

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T

TightrTone Keto
3:13 PM

I have been reading out many of your stories and i can state
nice stuff. I will surely bookmark your website.

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Transmitter engineering

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4:08 AM

- Wenvoe transmitter: Possible effect on TV week commencing 15/05/2023 Pixelation or flickering on some or all [DUK]

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- Wenvoe transmitter: Possible effect on TV week commencing 22/05/2023 Pixelation or flickering on some or all [DUK]

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- Wenvoe transmitter: Possible effect on TV week commencing 29/05/2023 Pixelation or flickering on some or all [DUK]

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- Wenvoe transmitter: Possible effect on TV week commencing 05/06/2023 Pixelation or flickering on some or all [DUK]

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Page 39

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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