Full Freeview on the Wenvoe (Cardiff, Wales) transmitter
 | Google Streetview |  | Google map |  | Bing map |  | Google Earth |  | 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 25/11/2024 Screen may go black on some or all channels 
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Digital television services are broadcast on a multiplexes (or Mux) where many stations occupy a single broadcast frequency, as shown below.
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 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.
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 | BBCtvwaves | ||||||||
| C30 | LOCAL2 | ||||||||
| C31 | com7 | com7 | |||||||
| C37 | com8 | com8 | |||||||
| C39 | +ArqB | +ArqB | ArqB | ||||||
| C41 | ITVwaves | ITVwaves | ITVwaves | +BBCA | +BBCA | +BBCA | BBCA | ||
| C42 | +SDN | +SDN | +SDN | SDN | |||||
| C44 | BBC1waves | BBC1waves | BBC1waves | D3+4 | D3+4 | D3+4 | D3+4 | ||
| C45 | +ArqA | +ArqA | +ArqA | ArqA | |||||
| C47 | C4waves | C4waves | C4waves | BBCB | BBCB | BBCB | BBCB | ||
| C49tv_off | +ArqB | ||||||||
| C51tv_off | BBC2waves | BBC2waves | BBC2waves | LCF | LCF | ||||
| C55tv_off | com7tv_off | ||||||||
| C56tv_off | COM8tv_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 |
Which companies have run the Channel 3 services in the Wenvoe transmitter area
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Friday, 26 July 2013
Lee: Err no.
There is a two-tier network in the UK now. The Public Service (PSB) channels cover the same area that the former four-channel analogue did (from the same transmitters). The Commercial (COM) channels broadcast from the biggest transmitters using channels that fit in, thus they have inferior coverage.
I gather your aerial is pointing to Llanhilleth which relays Wenvoe's PSBs and broadcasts them on the same channels as Wenvoe uses to radiate its COMs.
It is doubtful you will be able to receive from Wenvoe. Even if you can - perhaps with some monstrosity on your rooftop - you will be no better off as you certainly won't pick up its COM channels because they will be drowned out by Llanhilleth!
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Lee: For an explanation as to the reason for the two-tier network, see:
Londonderry (Northern Ireland) Freeview Light transmitter | ukfree.tv - 11 years of independent, free digital TV advice
I suggest you consider Freesat.
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Monday, 29 July 2013
D
Derek Matravers11:25 AM
Watchet
This is a question mainly for Dave Lindsay.
Hi Dave,from my earlier questions, you will see I have intermittent problems receiving CH39 from the Wenvoe transmitter.
I have read, from another of your posts, that the COM channels are received better using vertical polarisation of the aerial. Do you think this might solve my problem, although Wenvoe, clearly, should be horizontal. My main PSB reception is good.
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Derek's: mapD's Freeview map terrainD's terrain plot wavesD's frequency data D's Freeview Detailed Coverage
Derek Matravers: The "better" COM channels using vertical polarisation applies to Rowridge only. All other transmitters use one polarisation only.
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Monday, 16 September 2013
Gareth : Simple, the digital services are not designed to work with indoor aerials.
This is the reason why the law was changed to give everyone in the UK the right to use a rooftop aerial.
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M
Michael12:12 PM
Gareth: Hang on, I'll just phone Arqiva and get them to turn the analogue signals back on just for you...
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Saturday, 23 November 2013
S
Sue Carter4:26 PM
For the last week when I press the guide on my digital recorder no channels are showing and this means that I am unable to use my digital recorder. I understand work has been done on the Wenvoe transmitter - is this still ongoing and is this why I have no guide?
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Saturday, 1 February 2014
B
barrie wreford3:33 PM
hi does anyone know why ch41 ch44 multiplexes in the langstone area of newport gwent have gone very low signal this has just happend over the last 3 to four days, sorry dont have postcode.
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B
barrie wreford4:18 PM
Newport
does anyone know why ch41 ch44 multiplexes in the np18 2bh area of langstone newport gwent.
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barrie's: mapB's Freeview map terrainB's terrain plot wavesB's frequency data B's Freeview Detailed Coverage
Friday, 7 February 2014
For those interested Wenvoe has been transmitting new HD channels on 31 for some time now.
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