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Full Freeview on the The Wrekin (Telford and Wrekin, England) transmitter

first published this on - UK Free TV
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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.

This transmitter has no current reported problems

The BBC and Digital UK report there are no faults or engineering work on the The Wrekin (Telford and Wrekin, England) transmitter.

Choose from three options: ■ List by multiplex ■ List by channel number ■ List by channel name
_______

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.

MuxH/VFrequencyHeightModeWatts
PSB1
BBCA
 H max
C26 (514.0MHz)455mDTG-320,000W
Channel icons
1 BBC One (SD) West Midlands, 2 BBC Two England, 9 BBC Four, 23 BBC Three, 201 CBBC, 202 CBeebies, 231 BBC News, 232 BBC Parliament, 250 BBC Red Button, plus 18 others

PSB2
D3+4
 H max
C23 (490.0MHz)455mDTG-320,000W
Channel icons
3 ITV 1 (SD) (Central (West micro region)), 4 Channel 4 (SD) Midlands ads, 5 Channel 5, 6 ITV 2, 10 ITV3, 13 E4, 14 Film4, 15 Channel 4 +1 Midlands ads, 18 More4, 26 ITV4, 30 E4 +1, 35 ITV1 +1 (Central west),

PSB3
BBCB
 H max
C30- (545.8MHz)455mDTG-620,000W
Channel icons
56 5SELECT, 101 BBC One HD (England no regional news), 102 BBC Two HD (England), 103 ITV 1 HD (ITV Central West), 104 Channel 4 HD Midlands ads, 105 Channel 5 HD, 106 BBC Four HD, 109 BBC Three HD, 204 CBBC HD, 205 CBeebies HD, plus 1 others

COM4
SDN
 H -3dB
C41+ (634.2MHz)455mDTG-810,000W
Channel icons
20 Drama, 21 5USA, 29 ITV2 +1, 32 5STAR, 33 5Action, 41 Legend, 42 GREAT! movies action, 46 Channel 5 +1, 58 ITVBe +1, 59 ITV3 +1, 64 Blaze, 67 CBS Reality, 74 Dave ja vu, 78 TCC, 81 Blaze +1, 89 ITV4 +1, 203 CITV, 208 POP MAX, 209 Ketchup TV, 210 Ketchup Too, 211 YAAAS!, plus 15 others

COM5
ArqA
 H -3dB
C44 (658.0MHz)455mDTG-810,000W
Channel icons
11 Sky Arts, 17 Really, 19 Dave, 31 E4 Extra, 36 pick, 40 Quest Red, 43 Food Network, 47 Film4 +1, 48 Challenge, 49 4seven, 57 Smithsonian Channel, 60 Drama +1, 70 Quest +1, 75 Yesterday +1, 83 Together TV, 233 Sky News, plus 8 others

COM6
ArqB
 H -3dB
C47 (682.0MHz)455mDTG-810,000W
Channel icons
 FreeSports, 12 Quest, 25 W, 27 Yesterday, 34 GREAT! movies, 39 DMAX, 44 HGTV, 71 Quest Red +1, 73 HobbyMaker, 82 Talking Pictures TV, 84 PBS America, 88 Classic Hits, 235 Aljazeera English, plus 19 others

DTG-3 64QAM 8K 2/3 24.1Mb/s DVB-T MPEG2
DTG-6 256QAM 32KE 2/3 40.2Mb/s DVB-T2 MPEG4
DTG-8 64QAM 8K 3/4 27.1Mb/s DVB-T MPEG2
H/V: aerial position (horizontal or vertical)

Are you trying to watch these 0 Freeview HD channels?


The The Wrekin (Telford and Wrekin, England) mast is not one of the extended Freeview HD (COM7 and COM8) transmitters, it does not provide these high definition (HD) channels: .

If you want to watch these HD channels, either use Freesat HD, or move your TV aerial must point to one of the 30 Full Freeview HD transmitters. For more information see the want to know which transmitters will carry extra Freeview HD? page.

Which BBC and ITV regional news can I watch from the The Wrekin transmitter?

regional news image
BBC Midlands Today 2.9m homes 10.9%
from Birmingham B1 1RF, 49km east-southeast (116°)
to BBC West Midlands region - 66 masts.
regional news image
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?

1984-971997-981998-20112011-1327 Feb 2018
A K TA K TA K TW TK T
C23ITVwavesITVwavesITVwavesD3+4D3+4
C26BBC1wavesBBC1wavesBBC1wavesBBCABBCA
C29C4wavesC4wavesC4waves
C30-BBCBBBCB
C33BBC2wavesBBC2wavesBBC2waves
C35C5wavesC5waves
C41+SDNSDN
C44ArqAArqA
C47ArqBArqB
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

Feb 1956-Jul 1968Associated TeleVision†
Feb 1956-Jul 1968Associated British Corporation◊
Jul 1968-Dec 1981Associated TeleVision
Jan 1982-Feb 2004Central Independent Television
Feb 2004-Dec 2014ITV plc
Feb 1983-Dec 1992TV-am•
Jan 1993-Sep 2010GMTV•
Sep 2010-Dec 2014ITV Daybreak•
• Breakfast ◊ Weekends ♦ Friday night and weekends † Weekdays only. The Wrekin was not an original Channel 3 VHF 405-line mast: the historical information shown is the details of the company responsible for the transmitter when it began transmitting Channel 3.

Is the transmitter output the same in all directions?

Radiation patterns withheld

Comments
Wednesday, 6 April 2011
M
Mike Dimmick
sentiment_very_satisfiedPlatinum

1:40 PM
Reading

philip williams: The first stage of switchover at The Wrekin happened this morning. The low-power multiplex 1 was turned off, along with BBC Two analogue, and the high-power BBC A multiplex started up in their place.

BBC One analogue has temporarily been moved to BBC Two's old frequency, so you won't see anything if you select channel 1 on an analogue TV (or in a digital TV's analogue mode), and if you select 2, you'll get BBC One.

You won't see any new digital services yet. The HD services are the only new ones, and they don't start for another two weeks. You need Freeview HD-branded equipment to receive these channels.

You could also be using the Wrexham Rhos transmitter to your north-west, or Winter Hill to the north-east. The Wrekin is to your south-west. Wrexham Rhos and Winter Hill switched over, fully digital, over a year ago - late 2009.

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Mike Dimmick's 2,486 posts GB
S
steve
sentiment_satisfiedGold

4:59 PM
Wrexham

Report from the screenface - Digital retuning seems to have gone OK, but the analogue TV in the kitchen now only has a b/w pic. Presumably signal weaker?

BBC's switchover people got to sort that one out!

link to this comment
steve's 1,173 posts GB
Thursday, 7 April 2011
Transmitter engineering
sentiment_very_satisfiedOwner

4:42 AM

THE WREKIN transmitter - Analogue BBC ONE Off Air; DSO related from 00:26 yesterday to 01:33 yesterday [BBC]

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Transmitter engineering's 138,029 posts xx
Transmitter engineering
sentiment_very_satisfiedOwner

4:42 AM

THE WREKIN transmitter - Analogue BBC ONE Off Air; DSO related from 00:26 yesterday to 01:33 yesterday [BBC]

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Transmitter engineering's 138,029 posts xx
S
steve
sentiment_satisfiedGold

7:51 PM
Wrexham

Hi Brian - Must admit to confusion now over muxes and strengths!

Are we now (7/4/11) getting 20k/2k/2k/2k/1k/1k? Unsurprisingly the 20k works with a bent nail and the rest don't?

What will we have from 20/4?

Is "Comparison of analogue and digital signal levels" now or later?


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steve's 1,173 posts GB
D
Dusty
8:24 PM
Wrexham

Didn't think there were any power increases due. Doesn't the juice go up substantially in September?

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Dusty's 7 posts GB
M
Mike Dimmick
sentiment_very_satisfiedPlatinum

9:45 PM
Reading

Steve: Yes, that's correct.

On the 20th, D3&4 goes up to 20k and moves to C23. Mux B closes (services have already transferred to BBC A, except Sky Sports which go to ArqB on the 20th). The HD services, which replace it but on C30, start at 20k.

Mux A takes over Mux 2's frequencies of C31 and C49, staying at 2kW. Mux D becomes ArqB, takes over Mux C's channel and doubles to 2 kW, while Mux C becomes ArqA on Mux D's channel but stays on 1 kW. Some people may lose channels on Mux C because of this.

On 28 September, the commercial multiplexes go to the channels and power levels listed above, once Sutton Coldfield has finished with them.

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Mike Dimmick's 2,486 posts GB
Friday, 8 April 2011
S
steve
sentiment_satisfiedGold

12:45 AM
Wrexham

Mike - Thanks. That is clear. er. ish.

Bit like the soft mutation in Welsh. Or the Balkan Question.

A slightly simplistic question. Why does it make sense to broadcast some channels at 20kW and others at 2kW or 1kW?

Is it coz some is 64QAM and some only 16? Will my set-top ae find them equally receptionable?

I have tonight found that I get usable ITV if the loop Ae faces not quite the right direction!

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steve's 1,173 posts GB
S
steve
sentiment_satisfiedGold

12:49 AM
Wrexham

Phil Williams - where in Wrexham? Down here in Chirk - 10mls south and over the crest of a hill - we are firmly in Central TV and BBC Midlands (wherever the midlands are).

But Wrexham proper surely uses mainly Manchester/Grenada TV? I certaily would if I could.

I have even heard that there are TV signals in Welsh, but we know them not.

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steve's 1,173 posts GB
M
Mike Dimmick
sentiment_very_satisfiedPlatinum

8:48 AM

steve: Last week Mux 1 was at 2 kW, on two different channels depending on whether you were west or east of the transmitter.

Each multiplex has had different levels over the years. The oldest capture archived by WaybackMachine.org is from February 2001, which shows kW on all multiplexes.

The levels were originally set very low because of fears of damage to analogue reception, particularly at the relays. As the damage was not as bad as had been believed, they increased the digital power, changed channels, changed radiation patterns, to improve coverage (some analogue relays were increased in power to compensate, I believe). Some sites like The Wrekin got additional aerials and channels where they couldn't find one set of channels to cover the whole area.

Still, digital has never had the power necessary to match the analogue coverage. The only way to get there is to convert fully - turn off analogue and all the clashes go away, so you can increase digital power up to equal or even greater coverage.

Doing it in two stages is a political choice, so as to give people fair warning that it's about to go and give them some extra time to get sorted out before everything disappears.

The analogue network was planned to provide four networks from the start, so reducing that to three PSB multiplexes is really not a problem. Generally the three PSBs get channels previously used for analogue - BBC A takes BBC One's old channel, D3&4 replaces ITV1. Here, BBC B has a different channel but this is due to releasing channels 31-38.

Fitting in the COM multiplexes is more tricky - six into four doesn't go. They have to go wherever space can be found and often at lower power, costing some coverage. The PSBs are required to meet analogue's 98.5% coverage. The COMs are expected to get 90.5%. They don't really care about that last 8% - they turned down the option to use any additional sites.

As for 16QAM 3/4 vs 64QAM 2/3: the plan was always to use 64QAM and all muxes used that mode from 1998 to 2002. The BBC originally ran a line-up on Mux 1 similar to what is now on BBC A. When ITV Digital went into administration, one of the conditions of the new licences was a mode change to improve coverage. However, the multiplexes granted by law rather than by auction (mux 1, 2 and A) were not compelled to make the change. The BBC did, ITV and S4C didn't, we had a mix of modes for the next six to ten years.

(S4C? Yes. SDN stood for S4C Digital Networks. They flogged it to ITV plc in 2005.)

2001 power levels:

DTT Channel Allocation - The Midlands

'Equalization programme' details from 2001:
DTG :: Page not found plans for increases in 2002 (not all of these happened):

http://www.ofcom.org.uk/s….doc

Post 2002 changes: DTT Transmitting Station alterations (RG47SH)

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Mike Dimmick's 2,486 posts GB
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