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Full Freeview on the Mendip (Somerset, England) transmitter

first published this on - UK Free TV
sa_streetviewGoogle Streetviewsa_gmapsGoogle mapsa_bingBing mapsa_gearthGoogle Earthsa_gps51.237,-2.626 or 51°14'12"N 2°37'33"Wsa_postcodeBA5 3LB


The symbol shows the location of the Mendip (Somerset, England) transmitter which serves 720,000 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 Mendip (Somerset, England) mast?

Mendip transmitter - Mendip transmitter: Possible effect on TV reception week commencing 04/12/2023 Pixelation or flickering on some or all channels Digital tick

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

Which Freeview channels does the Mendip 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.

 H max
C32 (562.0MHz)591mDTG-100,000W
Channel icons
1 BBC One (SD) West, 2 BBC Two England, 9 BBC Four, 23 BBC Three, 201 CBBC, 202 CBeebies, 231 BBC News, 232 BBC Parliament, plus 17 others

 H max
C34 (578.0MHz)591mDTG-100,000W
Channel icons
3 ITV 1 (SD) (West), 4 Channel 4 (SD) South ads, 5 Channel 5, 6 ITV 2, 10 ITV3, 13 E4, 14 Film4, 15 Channel 4 +1 South ads, 18 More4, 26 ITV4, 28 ITVBe, 30 E4 +1, 35 ITV1 +1 (West),

 H max
C35 (586.0MHz)591mDTG-100,000W
Channel icons
46 5SELECT, 101 BBC One HD West, 102 BBC Two HD England, 103 ITV 1 HD (ITV Meridian Southampton), 104 Channel 4 HD South ads, 105 Channel 5 HD, 106 BBC Four HD, 107 BBC Three HD, 204 CBBC HD, 205 CBeebies HD, plus 1 others

 H max
C48 (690.0MHz)591mDTG-8100,000W
Channel icons
20 Drama, 21 5USA, 29 ITV2 +1, 32 5STAR, 33 5Action, 38 Channel 5 +1, 41 Legend, 42 GREAT! action, 57 Dave ja vu, 58 ITVBe +1, 59 ITV3 +1, 64 Blaze, 67 TRUE CRIME, 68 TRUE CRIME XTRA, 78 TCC, 81 Blaze +1, 89 ITV4 +1, 91 WildEarth, 209 Ketchup TV, 210 Ketchup Too, 211 YAAAS!, 267 Al Jazeera English, plus 35 others

 H max
C33 (570.0MHz)591mDTG-8100,000W
Channel icons
 Smithsonian Channel, 11 Sky Mix, 17 Really, 19 Dave, 31 E4 Extra, 36 Sky Arts, 40 Quest Red, 43 Food Network, 47 Film4 +1, 48 Challenge, 49 4seven, 60 Drama +1, 65 That's Christmas, 70 Quest +1, 74 Yesterday +1, 75 That's 90s, 233 Sky News, plus 11 others

 H max
C36 (594.0MHz)591mDTG-8100,000W
Channel icons
 Quest Red +1,  Classic Hits, 12 Quest, 25 W, 27 Yesterday, 34 GREAT! movies, 39 DMAX, 44 HGTV, 52 GREAT! christmas, 56 That's TV (UK), 61 GREAT! movies extra, 63 GREAT! christmas mix, 71 That’s 60s, 73 HobbyMaker, 82 Talking Pictures TV, 83 Together TV, 84 PBS America, 235 Al Jazeera Eng, plus 20 others

 H -10dB
C30 (546.0MHz)591mDTG-1210,000W
Channel icons
from 22nd September 2014: 7 Made in Bristol,

DTG-8 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 Mendip transmitter?

regional news image
BBC Points West 0.9m homes 3.4%
from Bristol BS8 2LR, 25km north (3°)
to BBC West region - 60 masts.
regional news image
ITV West Country News (East) 0.9m homes 3.4%
from Bristol BS4 3HG, 23km north (11°)
to ITV West region - 61 masts.
All of lunch, weekend and 50% evening news is shared with West Country (West)

Are there any self-help relays?

CheddarTransposer15 km E Weston-super-Mare1674 homes
LuccombeActive deflector6 km w Minehead38 homes

How will the Mendip (Somerset, England) transmission frequencies change over time?

1984-971997-981998-20102010-132013-182013-1727 Feb 2018
C49tv_off BBCABBCA

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 24 Mar 10 and 7 Apr 10.

How do the old analogue and currrent digital signal levels compare?

Analogue 1-4 500kW
Analogue 5(-6dB) 126kW
SDN, ARQA, ARQB, BBCA, D3+4, BBCB(-7dB) 100kW
com7(-8.4dB) 72.4kW
com8(-8.6dB) 69.1kW
Mux 1*, Mux 2*, Mux A*, Mux B*, Mux C*, Mux D*, LBS(-17dB) 10kW

Which companies have run the Channel 3 services in the Mendip transmitter area

Jan 1958-Jul 1968Television Wales and the West
Jul 1968-Feb 2004Harlech 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. Mendip 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.

Saturday, 23 February 2019
4:11 PM

Thanks Chris

I have fiddled with all aerial connections as suggested and low and behold my signal strength for BBC and others had now upped to 56%. I can't believe it could have been simply a poor coax cable connection but it seems likely for since fiddling with the connections over one hour ago single strength has maintained. I think it was the connection to my Youview box that was causing the problem or there may be a problem inside all may be revealed if the problem returns.

Many thanks I will keep my fingers crossed all is now well.

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Geoff's 2 posts GB flag
Sunday, 24 February 2019

10:26 AM


It is well known that poor connections will affect the signals from the aerial to the TV set. Any poor connection will cause problems, which is why we contributors (who have seen it so many times) suggest checking aerial cables and connections. Coaxial plugs and sockects can get corrosion/oxidation on the contact surfaces and that causes signal [roblems as well - hence the suggestion toi unplug and refit hence removing that corrosion.

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MikeP's 3,056 posts PT flag
Friday, 8 March 2019
Terry Burton
9:38 AM

We have been experiencing loss of signal (sometimes for half an hour but more usually just a few seconds) for the past two weeks. We a complex of 30 properties served by two main aerial dishes. I have been advised that our equipment is okay. Wondered if you had any suggestions

Terry Burton (Scheme Manager)
Hanover Gardens
Somerset BA11 4HL

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Terry Burton's 1 post GB flag
Terry's: mapT's Freeview map terrainT's terrain plot wavesT's frequency data T's Freeview Detailed Coverage

9:46 PM

Terry Burton:

There is no known problem with the transmitter so there has to be a connection problem at your location. Please note that Freeview dooes not use dishes but terrestrial aerials similar to those used for BBC2 since the sixties, though nowadays they need to be a wideband design.

I suggest that you carefully check all the aerial connections throughout the system and if there are any coaxial plugs.sockets then unplug and refit those. That also applies to any screw type 'F' connectors.

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MikeP's 3,056 posts GB flag
Wednesday, 20 March 2019
Iain Davies
10:52 AM

Early hours of this morning Mendip had all it's new channels on test with it's existing channels. Ch. 30, 32, 33, 34, 35, 36, 48, 49, 51, 52, 54, 55, 56, 58, 14 in all being broadcast.

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Iain Davies's 11 posts GB flag
Wednesday, 27 March 2019

5:34 AM

Terry Burton:

If you meant aerials rather than dishes and are actually getting Freeview not Freesat, there has been some testing going on at Mendip in preparation for the forthcoming retune events (eg. see post above mine) and there have been breaks in transmission as you have described, usually late in the evening.
Note, all those channels are not on air at time of this post, & retune events are on 4th April, 5th June and 19th June.

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Chris.SE's 3,927 posts GB flag
Wednesday, 3 April 2019

1:38 PM

May wish to note that at time of posting, BBC MuxA is currently being simultaneously broadcast on UHF32 presumably in readiness for the retune event sometime after midnight tonight.

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Chris.SE's 3,927 posts GB flag
Thursday, 4 April 2019
10:27 AM


I have quite an old set and have to manually scan all mendip multiplexes to avid being flooded by wenvoe.

Is there a definitive list of channels after each retune event?

Would I be right in thinking the ones now (after 4th April 2019) are:

32, 33, 34, 35, 36, 48, 51, 55 (HD), 56 (HD) = 9 in total

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Adrian's 3 posts GB flag

1:03 PM

Adrian: According to Digital UK the current allocations are 32/54/58/48/33/52/36/35 (also 51 if you're within the local mux coverage area). There will be further changes on 5th and 19th June. If you put your postcode into the Digital UK checker and tick detailed view it will show you all current and future mux allocations predicted to be receivable at your location.

Digital UK - Coverage checker

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StevensOnln1's 3,567 posts GB flag
Roger Rundle
2:01 PM


Since todays retune I can't get BBC digital - but I can get BBC HD my post code is BS35 2HY - so I should be on the Mendip transmitter.

Is there a signal problem?

link to this comment
Roger Rundle's 1 post GB flag
Roger's: mapR's Freeview map terrainR's terrain plot wavesR's frequency data R's Freeview Detailed Coverage
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