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Full Freeview on the Mendip (Somerset, England) transmitter

first published this on - UK Free TV
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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 22/07/2024 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 U&Drama, 21 5USA, 29 ITV2 +1, 32 5STAR, 33 5Action, 38 Channel 5 +1, 41 Legend, 42 GREAT! action, 57 U&Dave ja vu, 58 ITV3 +1, 59 ITV4 +1, 64 Blaze, 67 TRUE CRIME, 68 TRUE CRIME XTRA, 78 TCC, 81 Blaze +1, 83 Together TV, 91 WildEarth, 93 ITVBe +1, 209 Ketchup TV, 210 Ketchup Too, 211 YAAAS!, 267 Al Jazeera English, plus 30 others

 H max
C33 (570.0MHz)591mDTG-8100,000W
Channel icons
11 Sky Mix, 17 Really, 19 U&Dave, 31 E4 Extra, 36 Sky Arts, 40 Quest Red, 43 Food Network, 47 Film4 +1, 48 Challenge, 49 4seven, 60 U&Drama +1, 65 That's TV 2, 70 Quest +1, 74 &UYesterday +1, 75 That's 90s, 233 Sky News, plus 11 others

 H max
C36 (594.0MHz)591mDTG-8100,000W
Channel icons
12 Quest, 25 U&W, 27 U&Yesterday, 34 GREAT! movies, 39 DMAX, 44 HGTV, 52 GREAT! romance, 56 That's TV (UK), 63 GREAT! romance mix, 71 That’s 60s, 73 HobbyMaker, 82 Talking Pictures TV, 84 PBS America, 235 Al Jazeera Eng, plus 18 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.

Tuesday, 22 September 2020

7:57 AM


I'm not getting any signal from the Local multiplex (C30) at present. Whether or not this is down to the Planned Engineering is not confirmed.
Earlier Bristol TV was not broadcasting Bristol Live but Yorkshire Live. The other morning it was North Wales LIve, so it suggests there are some major issues at present!

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Chris.SE's 4,272 posts GB flag

8:26 AM

The Local multiplex signal is coming and going, whether this is "tropo" at my location is as yet unconfined. However, why I have signal Bristol TV is now broadcasting North Wales live (not the listed Judge Judy). It's been suggested that they may have had some servers crash!!

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Chris.SE's 4,272 posts GB flag

8:50 AM

Tropospheric Ducting confirmed here, so not everyone will be having the signal issues.
However whilst North Wales Live is far more interesting than endless repeats of Judge Judy, really need to sort out their servers or their listings for Bristol TV!!

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Chris.SE's 4,272 posts GB flag
Saturday, 3 October 2020
bruce tearle

9:49 AM

Just looking for help & suggestions!!!!!!!

Can no longer get any BBC channels on my TV. All others tried [ITV, Channels 4&5, UKTV, etc.] are coming through fine. My set-top box is a HUMAX; I have tried a factory reset on this without any success. Any & all suggestions gratefully received?


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bruce tearle's 56 posts GB flag

12:41 PM

bruce tearle:

Well, as you know you shouldn't have any problems with all the main muxes from Mendip. When was he last time you tried a retune, can you do a manual one for C32?
Looking in the tuning section, what are the signal strengths and quality showing for other multiplexes?
This might indicate an issue with the received signals being fed to the box.
Has the box recently had a firmware update? There might be some sort of issue there, but that would surprise me if you are getting the other muxes ok.

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Chris.SE's 4,272 posts GB flag
Friday, 16 October 2020
3:03 PM

I just cannot get Sony channels on Freeview - in particular Sony Channel (48) and Sony Movies Christmas (50). I might get them on the odd day but most of the time they are either totally unavailable or are pixilated and impossible to watch.
I only get this problem with Sony. Is it the Satellite from the Mendips or are Sony playing a game so you pay more? I am fed up with it.

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Jackie's 1 post GB flag
Saturday, 17 October 2020

12:14 AM


These channels (and some other Sony channels) Sony moved to Freeview Local multiplexes over a year ago.
For which channels are on which multiplex, see Channel listings for Industry Professionals | Freeview
(Note: Sony have renamed Sony Movies Classic as Sony Movies Christmas for the festive season, see Updates and alerts | Freeview they did a similar thing last year).

Unless you live in an area that can receive the Local multiplex (have a local station at LCN 7 or 8 in your EPG) then you won't get these channels. On the Mendip transmitter (which I think your meant - not "Satellite") it's on UHF C30 and with most Local multiplexes which are beamed at larger centres of urban population, it's beamed towards Bristol. The Local channel is Bristol TV at LCN7.

If you provide a full postcode we can look at your predicted reception and might be able to offer further advice.

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Chris.SE's 4,272 posts GB flag
Monday, 19 October 2020
bruce tearle

3:51 PM


Thanks for info & help.

The solution [in the end] was very simple. My Humax box was 'daisy-chained' through a couple of other pieces of equipment before connecting to the TV. Taking these out of circuit solved my problem. Now with the Humax box directly connected to the TV I have all channels available.

Thanks again for help.



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bruce tearle's 56 posts GB flag
Friday, 30 October 2020
Peter Artilison
10:30 AM

Oct -- 2020 -- I think a lot of the problems are the upcoming 5G Mobile Phone and it is likely to get worse. OFCOM are CLEARING the 700MHz Band ready to auction off in January 2021. In short the 700MHz band has been now allocated to ---Europe wide-- 5G mobile phone and OFCOM has basically told TV channels to get out of this band and OFCOM has thereby reassigned them to "OTHER Frequencies". If I remember correctly OFCOM recently said something like .........15 to 20 people in the UK may need to install a New TV Antenna....... YEP ....... check out all the latest .... No not the TV channel or Mendip but 5G/OFCOM. The Only FIX many well be a NEW TV ANTENNA and a NEW TV Boost amplifier if you have one installed, since they may no longer cover the NEW Channel Frequency assigned. In ADDITION the PROBLEM is NEW TVs. In brief they self scan and see a NEW CHANNEL and/or an old one GONE and reslot it. You may see on your TV the channel you are usd to watching --BUT-- it's been MOVED and you TV automatically retracked it --BUT-- the NEW Channel frequency may well be out of ban of you existing TV antenna etc. and hence what you see is ..."crap TV.. signal......" THE FIX .... I think is go read some more at OFCOM and other sites and basically you may have to install a NEW Antenna .....
Ofcom confirms plans for spectrum auction early next year - Ofcom

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Peter Artilison's 1 post GB flag
Susam Smith
12:55 PM

yes, it looks like OFCOM have said that 15 to 20 millions current UK freeview viewers may be affected by OFCOM CLEARING the 700MHz band ready for 5G and the OFCOM spectrum auction in Jan.2020.
this might also be useful

What Does 5G Interference Mean For Freeview TV Reception?

This link also tells some of the story that -- frankly OFCOM are only as usual, out to make money and sell aiwaves. The fact that the average user is totally DISADVANTAGED in the process and the manner in which they unplanned, randomly roll out their ULTIMATUM is of absolutely no concern to them and the fact that this current roll out means the average user will likely need to get a TV antenna installer in for likely 100 to 200
---AND-- get this, --- this is NOT the end of it all -- likely MORE costs to the average user coming in future years.

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Susam Smith's 1 post GB flag
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