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 18/11/2024 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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Tuesday, 3 May 2011
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Simon Jones9:02 PM
Since being asked to retune sometime last week, we've lost (I think) two complete muxes. E4 and Dave have gone, we're getting no signal messages. We've had problem free reception for 3 years. What confuses me is that the same thing has happened in my place of work, and also friends saying they've lost the same channels. CF5 postcode / Wenvoe TX
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Wednesday, 4 May 2011
Simon Jones: Please do a "first time installation" or do this - My Freeview box has no EPG, is blank on FIVE, ITV3, ITV4, ITV2+1, has no sound or the channel line up is wrong | ukfree.tv - independent free digital TV advice .
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RonP: Yes, the services are being broadcast as per the table at the top of the page. Please see Single frequency interference | ukfree.tv - independent free digital TV advice .
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S
Simon Jones11:34 AM
Thanks for your suggestion Briantist, and please accept my apologies for forgetting to mention that I've carried out numerous first time installs, with cable removed in between.
I'm getting perfect reception on PSB1, PSB2 & COM6. Just getting constant no signal on all channels on COM4 and COM5.
The missing channels appear on the correct channel numbers, and strangely, I think the EPG works, but just nothing except no signal.
I can't see why it would be a power issue, as COM6 works perfectly, and according to the chart above, it's on the same power.
I've also tried a different freeview receiver to rule out any TV firmware issues, (it's only 3 years old though).
A visual check of the aerial (digital one installed three years ago) couldn't find anything.
No new electrical items (e.g. games consoles, PCs) have been added.
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Simon Jones: I would check Single frequency interference | ukfree.tv - independent free digital TV advice - also check you don't have too much signal. If you have boosters or amplifiers, try removing them from your system.
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Iain Davies9:22 PM
Here in Weston s Mare ALL channels from Wenvoe coming in loud and clear!!!
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Tuesday, 17 May 2011
D
Donald Chamberlain2:42 PM
We are having problems with channels e.g. Quest,Dave & many more We are having no signal for these. So far no explenation has been given for the loss of these programs other than the fault always lies with the house holder. The system has been checked and no fault has been found so the problem must lie with the transmission itself ( Wenvoe ).
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Donald Chamberlain: The responsibility for reception is indeed yours. Please see Single frequency interference | ukfree.tv - independent free digital TV advice for help.
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Monday, 30 May 2011
I have a new freeview sony HD box and i find that i am unable to receive Channel 4 HD.
But when the receiver is tuened in for the first time the channel is viewable, then after a day the channel is gone.
Why am I unable to view channel 4 HD
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