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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Thursday, 30 December 2021
C
Chris.SE4:05 AM
Gareth Prosser:
I can't find and current or recent faults listed for Wenvoe and there's no current Planned Engineering listed.
If there was a Wenvoe transmitter fault there would be many posts about it, so this suggests a problem with your own installation.
Have you checked the connections behind your TV? Have you changed anything in your setup at all?
I would check that your aerial seems intact and pointing in the correct direction and that your downlead looks undamaged (especially if it is old).
Also check all your coax plugs, connections, flyleads etc, unplug connectors check for corrosion or other problems and reconnect them. Flyleads are a common problem, try swapping/changing them. See what signal strengths and quality you are getting for the multiplexes (groups of channels) shown in your TV's tuning section, that information may indicate issues with your aerial or downlead or possibly any distribution amp/splitter you may have.
Problematic connections, water ingress etc. can seem to affect reception of just an individual or several multiplexes.
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Friday, 31 December 2021
D
Derek Matravers3:51 PM
Little, or no signal, on channel 55 over the last 2 or 3 weeks.
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Saturday, 1 January 2022
C
Chris.SE12:52 AM
Derek Matravers:
Do you currently have "no signal" on UHF C55 or is it just not tuned - maybe you did a retune when you lost signal (may have been weather conditions a couple of weeks ago) and this cleared the tuning?
Try a Manual tune on UHF C55.
Unfortunately we have those "weather conditions" again right now - Temperature Inversion/Tropospheric Ducting affecting large parts of the UK and disrupting signal for some, so you may have to try that manual retune several times.
I would check that your aerial seems intact and pointing in the correct direction and that your downlead looks undamaged (especially if it is old) and is secure and not flapping in the wind.
Also check all your coax plugs, connections, flyleads etc, unplug connectors check for corrosion or other problems and reconnect them. Flyleads are a common problem, try swapping/changing them. See what signal strengths and quality you are getting for the multiplexes (groups of channels) shown in your TV's tuning section, that information may indicate issues with your aerial or downlead or possibly any distribution amp/splitter you may have..
Problematic connections, water ingress etc. can seem to affect reception of just AN individual, or several multiplexes.
There are currently or recently no reported faults at Wenvoe, there would be a lot more people posting if there was.
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Thursday, 3 March 2022
B
Bernard Tyson8:54 PM
Newport
cant get Sky Arts on Freeview NP20 6QD roof aerial
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Bernard's: mapB's Freeview map terrainB's terrain plot wavesB's frequency data B's Freeview Detailed Coverage
Friday, 4 March 2022
C
Chris.SE1:38 AM
Bernard Tyson: '/
No faults are being reported at Wenvoe that I can find and it's not currently listed for Planned Engineering.
Sky Arts (LCN11) is carried on the ArqA multiplex.
See Channel listings for Industry Professionals | Freeview for which channels are carried on which multiplex (groups of channels).
Are you missing any other ArqA channels at all?
It would be worth checking in your TV tuning section that you are correctly tuned to Wenvoe's UHF channels.
When Freeview juggled a lot of channels LCNs towards the end of January and you probably retuned, Wenvoe was listed for Planned Engineering and there may have been weak signals at the time you retuned and some multiplexes may have inadvertently tuned to another transmitter - there are several you could pick up at your locale.
The UHF channels for Wenvoe are C41, C44, C47, C42, C45, C39, C55, C37 that's in the multiplex order BBCA/PSB1, D3&4/PSB2, BBCB HD/PSB3, SDN/COM4, ArqA/COM5, ArqB/COM6, COM7, Local.
(C means UHF channel).
If you are correctly tuned and still have a problem, I would check that your aerial seems intact and pointing in the correct direction (bearing 227 degrees, pretty much SW for your locale) with the rods (or squashed Xs) horizontal, and that your downlead looks undamaged (especially if it is old) and is secure and not flapping in the wind.
Also check all your coax plugs, connections, flyleads etc, unplug connectors check for corrosion or other problems and reconnect them. Flyleads are a common problem, try swapping/changing them. See what Signal Strengths and Quality (or Error/BER) figures you are getting for the multiplexes (groups of channels) shown in your TV's tuning section, that information may indicate issues with your aerial or downlead or possibly any distribution amp/splitter you may have.
Problematic connections, water ingress etc. can seem to affect reception of just an individual or several multiplexes.
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Saturday, 9 July 2022
P
Patrick8:43 AM
It seems to me that Mux 55 has now completely disappeared from Wenvoe? Is that correct? If so, please update the information on the website.
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S
StevensOnln112:50 PM
Patrick: COM7 closed completely on 30th June. The owner of this website has been unable to keep up with all the changes which have taken place across hundreds of transmitters over the last few years as part of the 700MHz clearance.
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Saturday, 16 July 2022
P
Patrick4:14 PM
Thank you - it sounds like a lifetime's work and is appreciated. Maybe Freeview should / could give the website owner some help in the interest of keeping data on this valuable website current? Patrick
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Friday, 16 September 2022
M
Mike4:40 PM
How come there is no channel 42 (Great Movies Action) in Wales
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M
Mike4:50 PM
How come there is no channel 42 (Great Movies Action) available in Wales please?
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