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 11/11/2024 Pixelation or flickering 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, 29 July 2011
julie: Can you please provide a full (not partial) postcode.
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Monday, 15 August 2011
G
georgina phillips6:40 PM
Hereford
My 81 year old mothers new digital tv was working fine after switch over in april but in the last 2 weeks she is experiencing major problems with digital signal on all BBC chanels. Have you done something to the signal strength as nothing has changed in her set up here. She has hearing aids so the sqweeks and tweets delivered by poor signal on all BBC chanels is quite irritating for her ears. She cannot afford SKY subscription and has not received any assistance with digital switchover. We purchased a new tv for her for christmas.
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georgina's: mapG's Freeview map terrainG's terrain plot wavesG's frequency data G's Freeview Detailed Coverage
Tuesday, 16 August 2011
georgina phillips: She should have been contacted automatically by the
The Switchover Help Scheme can help you make the switch to digital TV. | Switchover Help Scheme .
I would have a look at Single frequency interference | ukfree.tv - independent free digital TV advice .
You don't have to subscribe to watch via satellite, you can always use Freesat.
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Thursday, 25 August 2011
D
David Corrick9:50 PM
Cardiff
I Currently have a wide range aerial on the chimney stack of my Bungalow
Tuned to wenvoe I receive channels
c41 c42 c44 c45 c49 I cannot pick up C47
I am also picking up c54 from mendip transmitter. The quality of picture varies from day to day and during a day and I also get distorted sound some of the time.
bbc 1 and bbc 2 wales are the best channels but they sometimes break up. We Live in the country but the is a large tree 50 mtrs away from the aerial blocking the direct line of site of the transmitter.
DOI stick with freeview or change to freesat
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David's: mapD's Freeview map terrainD's terrain plot wavesD's frequency data D's Freeview Detailed Coverage
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Mike Dimmick10:35 PM
David Corrick: Looking at your location I'd suspect too much signal rather than too little. If you have a booster or other amplifier, try turning it down or removing it. You might try adding an attenuator to reduce signal levels.
You won't get C47 unless your TV or box has the Freeview HD logo. This multiplex transmits with a newer standard, called DVB-T2, which gives much more capacity. If your TV is 'HD Ready', you can add a Freeview HD set-top box or PVR to decode the HD signals.
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Tuesday, 20 September 2011
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Harry Butler4:51 PM
Cardiff
We've been coming to Cardiff Caravan Park ( CF11 9XR )in our motorhome for 3 years now and always regarded the Freeview reception as a 'benchmark' for Digital TV (Wenvoe TX). Back in 2010 we used to get about 136 channels on tuning our Freeview TV (22" Technika) - I note that now we only get 106 - why is that ??
Thanks
Harry
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Harry's: mapH's Freeview map terrainH's terrain plot wavesH's frequency data H's Freeview Detailed Coverage
Harry Butler: Sounds like you used to see "duplicate" channels from other transmitters in your old total, and now you don't.
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Harry Butler7:35 PM
"Sounds like you used to see "duplicate" channels from other transmitters in your old total, and now you don't"
On reflection - I think you're right - my 22" Techika doesn't tune the 'duplicate' 'Wales' channels which probably accounts for the reduced number
Tks
Harry (51.4890,-3.1968)
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Friday, 9 December 2011
G
G. Thomas4:41 PM
Why are the commercial channels from the relay mast at Cymmer Port talbot losing signals & breaking up. I have three TVs running off three different aerials & the three sets are affected. It is a bit much as we don`t even recieve all the channels, so much for digital & freeveiw.
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G. Thomas: Please forgive my lack of knowledge of your local area. What is the transmitter you are referring to? Can you post your post code and the direction of your aerials?
Most relays do not carry the commercial channels, so if your receivers are picking them up, then it might not be from the transmitter you refer to.
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