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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.

Thursday, 11 July 2019

9:45 PM

B mears: Movies 4 Men has moved to the slot on the COM4 multiplex which is not available from transmitters in Wales. This decision was taken by Sony, who own Movies 4 Men and the True channels. It has nothing to do with 5G.

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StevensOnln1's 3,622 posts GB flag

11:34 PM

Lyndon morgan:

There's no reported faults at Ton Pentre. It's possible that reception might be affected by the current weather & propagation conditions. If however your problem is continuous, then check all your coax connections etc.

B mears:
As mentioned by StevensOnln1 the changes have been made by Sony
Sony Channel changes | Freeview
Channel launches, closures and changes on 27 June 2019 | Freeview

If you go to the True Entertainment page on this site, there is a link to their Official Site True Channels and at the bottom of the page a contact us link where you can email them at and complain about the moves to local muxes so you can no longer receive them. This is likely the only way it may change. Good luck.

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Chris.SE's 4,136 posts GB flag
Thursday, 25 July 2019
9:38 AM

Postcode np10 8xb

The very channel I require the most I cannot receive this is premier sport
I receive all other TV channels BBC1 SD, ITV1 SD BBC1 HD, ITV SD etc

Have deleted all channels, done a rescan without the aerial in place then inserted aerial rescanned full coverage no premier sport though. can you advise please regards Gary

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Garry's 1 post GB flag
Garry's: ...

11:31 AM

Garry: Premier Sport is a pay TV channel and is not available on Freeview. If you actually mean FreeSports, it is on the COM8 multiplex (along with BBC Four HD & Quest HD) which is predicted to have good reception from Wenvoe at your postcode.

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StevensOnln1's 3,622 posts GB flag

11:38 AM


Premier Sports is not available on Freeveiw, only Sky & Virgin. It does have a sister channel called Freesports and is LCN 64 in the channel list, it's on the COM8 multiplex which is broadcast from Wenvoe if you can get it at your location. Put your postcode into Digital UK - Coverage checker to check predicted reception at your location.

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Chris.SE's 4,136 posts GB flag
Thursday, 29 August 2019
8:28 PM

Why can't I get channel 40 in aberdare

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Chris's 1 post GB flag
Wednesday, 11 December 2019
David watkins
11:02 PM

Hello. My name is David,my Post Code is CF399UA and from the direction my aerial is pointing I suppose ithe TX MAST address is above Upper Boat Pontypridd.
I understand that that this TX one of this country,s lowest station in program out put i.e.21
Why is that the case???.

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David watkins's 1 post GB flag
Thursday, 12 December 2019

2:50 AM

David watkins:

The Pontypridd transmitter is well to the north of Upper Boat, it's probably better described as being just north of Glyntaff and very close to the east of Coedpenmaen. If you click on Pontypridd it will go to its transmitter page where the map will show its location. It's 10 degrees S of E and about 5km from your location.

There are over 1100+ TV transmitters in the UK of which over 1000+ are "relay" transmitters, the great majority of which are Freeview "Light" transmitters which only transmit the 3 PSB multiplexes. Of these Public Service Broadcast multiplexes, PSB3 is the BBCB HD multiplex for the main HD TV channels which you can only receive if you have a TV with an HD (T2) tuner. The two other multiplexes PSB1/BBCA and PSB2/D3&4 broadcast the SD Standard Definition channels of which there are 21 TV channels and the BBC radio stations. So there is nothing unusual about your situation, it's like many that have to rely on a PSB relay "Light" transmitter.

The main transmitters cannot cover the whole country simply because of it geographic nature which is why we have all the relay transmitters to fill in most of the gaps. Because most of these relay transmitters only cover small populations, the commercial broadcasters don't consider it cost effective to pay for additional transmitters on those sites to provide the other 3 main COM (commercial) multiplexes.

Two other HD multiplexes COMs 7&8 are not broadcast from all Main transmitters because of technical limitations and cost effectiveness. In any event we are expecting those to be closed by around 2022 when the frequencies may be required for 5G mobile use. Whether the commercial broadcasters and transmitter operators will at that time consider it cost effective to start converting any of the remaining multiplexes to T2 (HD) which can then accommodate more channels, remains to be seen.

According to the Freeview Detailed Coverage Checker, you could receive signals from 5 transmitters at your location - 4 Welsh, and the 5th is Mendip (West of England main transmitter) but the reliability of signals from all but the 3 very local Relay transmitters will be variable to poor for most of the multiplexes.
The 3 local transmitters are Porth about 0.7km to the NW of you, Trebanog just over 1km to the SW, and Pontypridd. Trebanog is very low power (2W), Porth is also very low power (12W) and Pontypridd is low power 400W where you are likely to get your most reliable signals from even though all 3 are predicted to give good reception.
See Problems with Freeview reception? | RTIS to give you more of a feel for reception of these Welsh transmitters.

If you want to receive more TV channels (including some not broadcast on Freeview), you could consider Freesat which is subscription free, otherwise the other options are Sky, or Cable if available in your area.

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Chris.SE's 4,136 posts GB flag

3:10 AM

David watkins:

To add to my last, if you have a decent broadband connection with unlimited usage, you could consider a more modern "smart" TV that can connect to the Internet where you can "stream" some additional channels, also make use of "catch-up" services, and many of these sets are now UHD (4k) definition (limited streaming services available for UHD at present) and a number of sets will also have satellite tuners built-in so you only need a dish and LNB to get Freesat.

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Chris.SE's 4,136 posts GB flag
Wednesday, 18 December 2019
Tim Phipps
1:30 PM

The channel listings for Wenvoe seem off. I can't see BBC1 HD on any mux yet I can recieve it OK, PLus I can't get BBC Four HD yet it is listed here.

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Tim Phipps's 1 post GB flag
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