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.
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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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Sunday, 26 March 2023
R
Richard Smith11:58 AM
Bridgend
Following on from my previous post, I am postal code CF31 2ND and I believe my transmitter is Wenvoe.
link to this comment |
Richard's: mapR's Freeview map terrainR's terrain plot wavesR's frequency data R's Freeview Detailed Coverage
R
Richard Smith12:09 PM
Problem solved. A simple channel retune cured the pixellation. Thank you for this website.
link to this comment |
C
Chris.SE1:51 PM
Richard Smith:
Hi Richard. I'm glad you managed to solve the problem, thanks for the feedback. Your main transmitter is indeed Wenvoe, but you may also get signals from a number of other transmitters in your location, Mendip being the strongest, then the Llangeinor relay (PSBs only), and some weak/variable signals from Stockland Hill and Huntshaw Cross in Devon.
If you happened to retune (or your set did it automatically) when you had no or badly pixellated signals, it often clears correct tuning and can tune to other signals. Maybe COM6 was down during the Engineering if this happened.
Generally it's not recommended to retune in those conditions if you were correctly tuned, just wait until signals return. (Same when adverse weather affects reception).
Best thing is to check you are correctly tuned to Wenvoe's UHF channels (as listed at the very top of this page).
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Friday, 5 May 2023
Transmitter engineering
9:46 AM
9:46 AM
Wenvoe transmitter - Wenvoe transmitter: Possible effect on TV reception week commencing 01/05/2023 Pixelation or flickering on some or all channels [DUK]
link to this comment |
Monday, 8 May 2023
Transmitter engineering
4:08 AM
4:08 AM
Wenvoe transmitter - Wenvoe transmitter: Possible effect on TV reception week commencing 08/05/2023 Pixelation or flickering on some or all channels [DUK]
link to this comment |
Tuesday, 9 May 2023
T
TightrTone Keto3:13 PM
I have been reading out many of your stories and i can state
nice stuff. I will surely bookmark your website.
link to this comment |
Monday, 15 May 2023
Transmitter engineering
4:08 AM
4:08 AM
Wenvoe transmitter - Wenvoe transmitter: Possible effect on TV reception week commencing 15/05/2023 Pixelation or flickering on some or all channels [DUK]
link to this comment |
Monday, 22 May 2023
Transmitter engineering
4:08 AM
4:08 AM
Wenvoe transmitter - Wenvoe transmitter: Possible effect on TV reception week commencing 22/05/2023 Pixelation or flickering on some or all channels [DUK]
link to this comment |
Monday, 29 May 2023
Transmitter engineering
4:09 AM
4:09 AM
Wenvoe transmitter - Wenvoe transmitter: Possible effect on TV reception week commencing 29/05/2023 Pixelation or flickering on some or all channels [DUK]
link to this comment |
Monday, 5 June 2023
Transmitter engineering
4:08 AM
4:08 AM
Wenvoe transmitter - Wenvoe transmitter: Possible effect on TV reception week commencing 05/06/2023 Pixelation or flickering on some or all channels [DUK]
link to this comment |
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