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Full Freeview on the Wenvoe (Cardiff, Wales) transmitter

first published this on - UK Free TV
sa_streetviewGoogle Streetviewsa_gmapsGoogle mapsa_bingBing mapsa_gearthGoogle Earthsa_gps51.460,-3.282 or 51°27'35"N 3°16'57"Wsa_postcodeCF5 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 15/04/2024 Pixelation or flickering on some or all channels Digital tick

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

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.

 H max
C41+ (634.2MHz)384mDTG-100,000W
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

 H max
C44 (658.0MHz)384mDTG-100,000W
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),

 H max
C47 (682.0MHz)384mDTG-100,000W
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 -3dB
C42+ (642.2MHz)384mDTG-850,000W
Channel icons
 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 TRUE CRIME, 68 TRUE CRIME XTRA, 78 TCC, 81 Blaze +1, 83 Together TV, 89 ITV4 +1, 91 WildEarth, 209 Ketchup TV, 210 Ketchup Too, 211 YAAAS!, 267 Al Jazeera English, plus 30 others

 H -3dB
C45+ (666.2MHz)384mDTG-850,000W
Channel icons
11 Sky Mix, 17 Really, 19 Dave, 31 E4 Extra, 36 Sky Arts, 40 Quest Red, 43 Food Network, 47 Film4 +1, 48 Challenge, 49 4seven, 60 Drama +1, 65 That's TV 2, 70 Quest +1, 74 Yesterday +1, 75 That's 90s, 233 Sky News, plus 11 others

 H -3dB
C39+ (618.2MHz)384mDTG-850,000W
Channel icons
12 Quest, 25 W, 27 Yesterday, 34 GREAT! movies, 39 DMAX, 44 HGTV, 52 GREAT! romance, 56 That's TV (UK), 61 GREAT! movies extra, 63 GREAT! romance mix, 71 That’s 60s, 73 HobbyMaker, 82 Talking Pictures TV, 84 PBS America, 235 Al Jazeera Eng, plus 18 others

 H -10dB
C37 (602.0MHz)384mDTG-1210,000W
Channel icons
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?

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

AbergwesynActive deflector7 km N Llanwrtyd Wells20 homes
BarryTransposer10 km SW city centre300 homes
Celtic ManorTransposer5 km E Newport80 homes
PentrebachTransposer3 km S Merthyr Tydfil100 homes
YstradfellteActive deflector30 km NE Port Talbot20 homes

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

1950s-80s1984-971997-981998-20102010-132013-182013-1715 May 2019
C39 +ArqB+ArqBArqB

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

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. 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.

Friday, 16 September 2022
4:50 PM

How come there is no channel 42 (Great Movies Action) available in Wales please?

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Mike's 2 posts GB flag

6:09 PM

Mike: It's originally down to having to accommodate S4C and making it available from every Welsh transmitter. S4C takes E4's space on the PSB2 multiplex, so E4 takes a slot on the COM4 multiplex in Wales only, leaving a slot which is available on COM4 in England/Scotland/Northern Ireland, which for the last few years has been occupied by Great Movies Action (formerly Sony Movies Action) with the broadcaster benefiting from lower costs as they are reaching a few million fewer viewers.

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StevensOnln1's 3,622 posts GB flag
Tuesday, 8 November 2022
Michael Hanlon
7:49 PM

Mike: why cant i get channel 52 in newquaytr73ba cornwall

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Michael Hanlon's 2 posts GB flag

10:38 PM

Michael Hanlon:

See my reply to your other post at All of the free TV channels on PGSTART1650 in the UK | free and easy

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Chris.SE's 4,136 posts GB flag
Tuesday, 29 November 2022

12:12 AM

A reminder that COM7 has now closed (COM8 closed in 2020) so,
The UHF channels for Wenvoe are C41, C44, C47, C42, C45, C39, C37 that's in the multiplex order BBCA/PSB1, D3&4/PSB2, BBCB HD/PSB3, SDN/COM4, ArqA/COM5, ArqB/COM6, Local.
(C means UHF channel).

Whether or not you can receive the Local multiplex will depend on whether you are generally North of the transmitter and specifically your postcode to determine if you are likely to get adequate signal.
Also , see Channel listings for Industry Professionals | Freeview for which TV channel;s are carried by which multiplex.

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Chris.SE's 4,136 posts GB flag
Monday, 2 January 2023
Carol Burson
12:17 PM

My postcode is CF11 0SF . Flat no 728, sea facing. NO outdoor tv aerial.
I have recently had BT TV put into my flat, and I need an indoor aerial to be able to get the maximum amount of channels to watch and record through it. There are no TV aerials pre wired at my development, and not allowed to fit an outdoor aerial.
I bought an indoor aerial suitable for up to 9 miles from transmitter, with a built in booster, but it was useless, direct into TV, nothing but snow, the BT box also failed to pick up a signal.
Can you please recommend an indoor aerial that is suitable for my tv system and location.
( NB we are approx 4 miles from the Wenvoe Transmitter.)

Thank you

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Carol Burson's 1 post GB flag
Carol's: mapC's Freeview map terrainC's terrain plot wavesC's frequency data C's Freeview Detailed Coverage

4:36 PM

Carol Burson:

Most claims by these "indoor" aerial which claim suitable for so many miles etc. are complete rubbish. Some indoor aerials can be better than others. What make and model is the one you have?

The Wenvoe transmitter is 7km (4&1/3 miles) from you at compass bearing 281 degrees - that's 11 degrees N of due West and is the way the aerial needs to point, ideally through a clear window. If you have thick walls, large metal objects such as fridges/freezers in the way it will affect or stop any signal.
If you can't point it that way, try compass bearing 121 degrees, that's 14 degrees E of SE. Although the signal will be weaker you might get some from the Mendip transmitter.
If this aerial has any rods, they should be horizontal. But tell us the make and model, as well as what line of vieew you have, and we should be able to advise further.

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Chris.SE's 4,136 posts GB flag
Friday, 10 March 2023
Transmitter engineering

11:08 AM

Wenvoe transmitter - Wenvoe transmitter: Possible effect on TV reception week commencing 06/03/2023 Pixelation or flickering on some or all channels [DUK]

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Transmitter engineering's 150,632 posts GB flag
Monday, 13 March 2023
Transmitter engineering

5:07 AM

Wenvoe transmitter - Wenvoe transmitter: Possible effect on TV reception week commencing 13/03/2023 Pixelation or flickering on some or all channels [DUK]

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Transmitter engineering's 150,632 posts GB flag
Sunday, 26 March 2023
Richard Smith
11:53 AM

I have had pixellation on certain channels for a week or so. Checking the affected channels, I think it is one
multiplex that is affected, COM6, ArqB.
Started early last week and today, Sunday 26th still happening.
Is there engineering work continuing or could there be a multiplex fault?
Regards, Richard Smith, ex NTL St Hilary Broadcast employee

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Richard Smith's 3 posts GB flag
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