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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 27/11/2023 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.

Friday, 13 January 2012
Pete Green

6:48 PM

Onur Gorduk

The channels are correct. On the 28th of March channel67 will change to 57.

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Pete Green's 54 posts GB flag
Saturday, 14 January 2012
Pete Green

9:28 AM

My last post should have said 67 to 56.

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Pete Green's 54 posts GB flag
Lance Forbat Forbat
3:24 PM

Can anyone advise if the Burrington transmitter send signals higher than its mast as we can see the mast from the top of Burrington Combe and initially got 22 chaneks from downstairs room but in lft then on roof only get Wales and weak signals ? Took it back to lower level and no signal. Pointed it at Burrinton mast from upstairs window, direct line between trees but our elevation up 150 feet or so. Still get only Wales. Should I get Burrinton signal or do I have wrong arial? I had 64 element hgh gain from B&Q.

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Lance Forbat Forbat's 1 post GB flag
Lance's: mapL's Freeview map terrainL's terrain plot wavesL's frequency data L's Freeview Detailed Coverage

5:22 PM

Lance Forbat Forbat: Yes, it will just in roughly the same way as it does downwards, I noticed though that the predictions of your expected signal level from it aren't 100% even although its only listed as being 1 mile from you, plus as its shown as being located at approx 5 degrees from you I would have expected maximum strength considering the transmitter radiation pattern is basically heavily biased towards the South / South East, with a rapid cut off from the South sweeping towards West.

However all six multiplexes from Wenvoe are shown as good, particularly BBC1 etc, as so for maximum channels you would be best concentrating on reception efforts from Wenvoe as Burrington as you will probably realise is a PSB only station anyway. (limited channels)

I think you are a bit over the top in the aerial you are using, and in the circumstances you are in a Log 40 would have been much better, as these larger aerials only really come into their own in line of sight (or near) situations where exceptional distances are involved, and indeed can perform very inferior to smaller aerials when not used in the circumstances mentioned.

This is the type of aerial referred to.

Online TV FM DAB Aerial sales

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jb38's 7,179 posts GB flag

5:45 PM

Lance Forbat: Just to add, Wenvoe is shown as being located at 25 miles from you at a bearing of 292 degrees and the mux channels used by Wenvoe are:- 41 - 44 - 47(HD) - 42 - 45 - 49. Its always best though to scrub anything stored before trying another station, and with Wenvoe using lower channel numbers it should (hopefully) populate the EPG before Burrington as it spans Ch53 - 60.

Nothing can be guaranteed with RF reception, and the fact of you stating that the signal vanished with the aerial being higher up suggests some signal path peculiarities are occurring in your area, especially where a transmitter at only 1 mile away is involved, as radiation patterns do not generally show any upwards cut off measures that "may" have been taken.

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jb38's 7,179 posts GB flag
Monday, 16 January 2012
Tracy Gill
7:17 PM

Could someone please tell me why I keep being unable to watch any of the BBC channels. They frequently have either no signal or are so pixellated that they are unwatchable. Seeing as the BBC is the one I pay the licence fee for this is extremely annoying. I live in BA4 area.

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Tracy Gill's 17 posts GB flag
Tuesday, 17 January 2012
6:11 PM
Shepton Mallet

Thought I might post this as it may be of help...

BA4 5XD, steep wooded valley in Bowlish, Shepton Mallet. I have had 70%/low/disappearing signals varying across the spectrum from Mendip, even though the transmitter is only a couple of miles away. This weekend the neighbour's 3 gigantic Leyland Cypress (Lelandii) trees were removed from the general line of sight and now I'm getting 88-95% signal on all free-view channels. Although the transmitter tower is still not visible the signal must be bouncing around better from the sides of the valley.

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Jon's 7 posts GB flag
Jon's: mapJ's Freeview map terrainJ's terrain plot wavesJ's frequency data J's Freeview Detailed Coverage
Tracy Gill
8:12 PM

I wish that could be of help to me but there is nothing I can do about trees.
Have done a retune and now have no BBC channels whatsoever.

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Tracy Gill's 17 posts GB flag
Wednesday, 18 January 2012
Mike Dimmick

11:23 AM

Tracy Gill: Check if you have another version of the BBC channels anywhere else in the channel list (usually from 800 upwards). If they do appear, the problem is that your box is tuning in the weaker signal from Stockland Hill rather than the strong one from Mendip.

Unfortunately a lot of equipment designed before switchover started simply stores the first channels it finds. That was fine when power was low and most people would only expect to have strong enough signals from one transmitter. After switchover, many - perhaps most - people will have strong enough signals from more than one transmitter, at least strong enough to decode and store the channel list even if not strong enough to actually use.

See Digital Region Overlap for thoughts on resolving this. Newer equipment should ask which region you want, if more than one is received, and use the best available transmitter for the selected region(s).

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Mike Dimmick's 2,486 posts GB flag
Dave Lindsay

12:42 PM

Tracy Gill: Following on from Mike Dimmick's suggestion that it could be that your receiver has tuned to Stockland Hill and put Mendip in the 800s, I looked at the channel (frequency) allocations for these transmitters.

If this is your problem, then you should be able to correct it by running the automatic tuning scan with the aerial unplugged up until about 45%.

Stockland Hill uses channels between 22 and 29 and Mendip uses 48 to 61.

You will need to retune on 28th March due to a channel change for Arqiva A which carries Pick TV and others. This will not affect the procedure I outlined above as it is still within that range of channels.

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Dave Lindsay's 5,724 posts GB flag
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