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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.

Tuesday, 9 December 2014
Transmitter engineering

4:31 AM

MENDIP transmitter - MainPossible weak signal [DUK]

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Transmitter engineering's 146,549 posts xx flag
Friday, 12 December 2014
12:06 AM

Since late afternoon we have only had semi-reliable service on the Muxs on Channels 48 & 49, and dropping in and out (more out than in) on channels 52 & 56. Nothing at all on channel 54, so no HTV/Channel 4/Channel/E4. Is that likely to be the result of the planned "MENDIP transmitter - MainPossible weak signal" advertised on Digitul UK and mentioned above? Or just the weather?

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MFPA's 3 posts GB flag
Tuesday, 16 December 2014
R Bennett
12:55 PM

I live in Crewkerne and only get a few digital channels, it misses out lots of channel on my TV, Ive retuned and still cant get ITV B, why is this?

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R Bennett's 1 post GB flag
Dave Lindsay

1:45 PM

R Bennett: Because ITV Be is carried on COM4 multiplex, the Commercial (COM) multiplexes not being available from Crewkerne transmitter.

The thing to do is to see if you might be in with a shot at receiving from Mendip to give you all channels. A postcode would allow some idea of likelihood of success to be gauged.

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Dave Lindsay's 5,724 posts GB flag
Sunday, 21 December 2014

5:04 PM

I 'm sure I heard a little bird say that it was thought that BBC West was going HD, YES HD in 2015. Does anybody know if there's a grain of truth in this?

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Richard's 30 posts GB flag
Wednesday, 7 January 2015
11:04 PM

Hello team
I am having fun and games with 3 of 4 TV's since we moved to Portishead. An older Panasonic plasma (about 6 years without HD) always tunes to ITV Wales when I use auto tune but so long as I manually retune is fine but I don't understand why. Postcode is set to home.
In a variation my brand new Samsung and 3 year old Humax HD box works fine for normal TV broadcast but for ITV HD it selects the Central adverts and local news whether I tune manually or auto - I am selecting transmitter 2 on channel 58 which is what this site and the other sites have agreed with. A really basic TVonic box on an old analogue TV does not pick up basic Wales BTW and all are on a common aerial via an 8 way distribution box in the loft.

Any thoughts?

thanks, Andy

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Andy's 1 post US flag
Thursday, 8 January 2015

2:12 PM

Andy: You havn't given a postcode (please everyone, if you want help, then a postcode is extremely important!), but at a guess its the way the algorithm driving the TV's search software - each one is slightly different.

Have a look at your localish transmitters on Digital UK, the frequencies are different, but so is the response of the software. Really cheap set-top boxes like my Goodmans vaguely look in the right direction, and pick the first transmitter, even if its wrong. Better brands (like my Sony PVR) pick the proper transmitter perfectly. And of course you might be getting a strong signal from the transmitter facing away from the direction of the aerial as well.

I'm sure others can go further with the various quirks, etc of picking up the signal, but basically, if you want the all the same, you'll have to manually tune them.

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MikeB's 2,579 posts GB flag
Dave Lindsay

3:03 PM

Andy: It's probably got more to do with the different ways in which the devices "decide" which signals to go with. Some go with the first they find, others work out which is the strongest and others ask you which network/region you want (this actually being a question as to which transmitter where they are from differing regions).

We don't know your exact location but Portishead slopes downwards, towards the water, meaning that Mendip is likely to be out of line-of-sight, but Wenvoe, across the Severn, may be stronger.

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Dave Lindsay's 5,724 posts GB flag
Saturday, 10 January 2015

1:55 AM

Andy: All Welsh transmitters broadcast Central (West Midlands) ITV HD, so you're probably receiving that service from Wenvoe as suggested by Dave.

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Jim's 28 posts GB flag
Jim's: mapJ's Freeview map terrainJ's terrain plot wavesJ's frequency data J's Freeview Detailed Coverage
Sunday, 11 January 2015
1:28 PM
Sturminster Newton

Andy: As I understand it, ITV HD is only from Central TV regardless of where you live (I tghink Scotland is an exception).

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GEM's 14 posts GB flag
GEM's: mapG's Freeview map terrainG's terrain plot wavesG's frequency data G's Freeview Detailed Coverage
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