Full Freeview on the The Wrekin (Telford and Wrekin, England) transmitter
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The symbol shows the location of the The Wrekin (Telford and Wrekin, England) transmitter which serves 280,000 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 The Wrekin (Telford and Wrekin, England) mast?
The Wrekin transmitter - The Wrekin transmitter: Possible effect on TV reception week commencing 27/11/2023 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
H/V: aerial position (horizontal or vertical)
The The Wrekin (Telford and Wrekin, England) mast is a public service broadcasting (PSB) transmitter, it does not provide these commercial (COM) channels: .
If you want to watch these channels, your aerial must point to one of the 80 Full service Freeview transmitters. For more information see the will there ever be more services on the Freeview Light transmitters? page.
Which Freeview channels does the The Wrekin 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
H/V: aerial position (horizontal or vertical)
The The Wrekin (Telford and Wrekin, England) mast is a public service broadcasting (PSB) transmitter, it does not provide these commercial (COM) channels: .
If you want to watch these channels, your aerial must point to one of the 80 Full service Freeview transmitters. For more information see the will there ever be more services on the Freeview Light transmitters? page.
Which BBC and ITV regional news can I watch from the The Wrekin transmitter?
BBC Midlands Today 2.9m homes 10.9%
from Birmingham B1 1RF, 49km east-southeast (116°)
to BBC West Midlands region - 66 masts.
ITV Central News 2.9m homes 10.9%
from Birmingham B1 2JT, 49km east-southeast (116°)
to ITV Central (West) region - 65 masts.
All of lunch, weekend and 80% evening news is shared with Central (East)
How will the The Wrekin (Telford and Wrekin, England) transmission frequencies change over time?
| 1984-97 | 1997-98 | 1998-2011 | 2011-13 | 27 Feb 2018 | |||||
| A K T | A K T | A K T | W T | K T | |||||
| C23 | ITVwaves | ITVwaves | ITVwaves | D3+4 | D3+4 | ||||
| C26 | BBC1waves | BBC1waves | BBC1waves | BBCA | BBCA | ||||
| C29 | C4waves | C4waves | C4waves | ||||||
| C30 | -BBCB | BBCB | |||||||
| C33 | BBC2waves | BBC2waves | BBC2waves | ||||||
| C35 | C5waves | C5waves | |||||||
| C41 | +SDN | SDN | |||||||
| C44 | ArqA | ArqA | |||||||
| C47 | ArqB | ArqB | |||||||
| C48 | _local | _local | |||||||
| C51tv_off | _local |
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 6 Apr 11 and 20 Apr 11.
How do the old analogue and currrent digital signal levels compare?
| Analogue 1-5 | 100kW | |
| BBCA, D3+4, BBCB | (-7dB) 20kW | |
| SDN, ARQA, ARQB | (-10dB) 10kW | |
| Mux 1*, Mux 2*, Mux A*, Mux B* | (-17dB) 2kW | |
| Mux C*, Mux D* | (-20dB) 1000W |
Which companies have run the Channel 3 services in the The Wrekin transmitter area
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Is the transmitter output the same in all directions?
Radiation patterns withheldFriday, 3 November 2023
I think it is likely a transmitter related issue rather than my equipment tho, as I've done a re tune and lost 3 complete MUX's.
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C
Chris.SE11:18 PM
Paul :
No need to apologise ;)
Ah, one thing I realise I'd hadn't explicitly mentioned for you (I'd mentioned it elsewhere in 5the thread) and that was about retuning.
If you are correctly tuned to all the Wrekin's UHF channels for each of its multiplexes then Do NOT Retune.
You cannot tune to a signal that is not there or so badly pixellated that the ste won't be able to decode it. The usual effect of doing so is to clear your correct tuning, then of course you won't know when the signals are normal.
The best thing to do here would be to do a Manual retune for any of the missing multiplexes. Once you have them tuned in then leave it.
For the COM multiplexes SDN/COM4, ArqA/COM5 & ArqB/COM6 the UHF channels are C41, C44 & C47 at the Wrekin.
Just to note for the PSBs - BBCA/PSB1, D3&4/PSB2 & BBCB HD/PSB3 they are C26, C23 & C30.
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Monday, 6 November 2023
Thanks Chris, one thing if you wouldn't mind explaining, on the MUX's above on this page, it has the HD channels on 30- . I don't know what the minus means after the 30? Also when I manually tune on my Humax Aura the Mhz is in 7 digits on the Aura so would 545.8 = 5458000 on my Aura?
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C
Chris.SE2:04 PM
Paul:
It's a 167kHz frequency offset (well IIRC 166.***kHz to be precise, not that it matters). It's there to help reduce co-channel interference where that may more easily come from a most likely propagation path in the most common atmospheric conditions. + (above) and - (below) are used at some transmitters.
Most TVs/Boxes that tune by UHF Channel (rather than Frequency) cope quite happily and tune correctly. A lot of such will round the frequency displayed to the nearest 200kHz (as does this site even in the listings at the top of the page). Again, IIRC it's only a few specialist devices such as Tuner Cards in PCs etc. that need to be tuned to the precise frequency, ie. 167kHz lower or higher.
It's not going to make any difference to your reception.
There is a body of opinion that suggests this is a hangover from Analogue days to help reduce the visual effects of CCI. The 167kHz is related to the line frequency used in 625 line transmission. They believe it's not needed with DTV which may well be the case, and the only reason that it's still there is because it would require hardware (transmitter) equipment changes to get rid of it. Why spend money on newer equipment when the older stuff is still working OK - being the obvious reason.
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Monday, 27 November 2023
Transmitter engineering
10:47 AM
10:47 AM
The Wrekin transmitter - The Wrekin transmitter: Possible effect on TV reception week commencing 27/11/2023 Pixelation or flickering on some or all channels [DUK]
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