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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, 12 May 2018
Norman Lambert
12:37 PM

I'm confused. Recently I changed my tv aerial and started to receive signals from Mendip (before that I was tuned in to Hannington, all legit because I live on the border between these two transmitters). I did a complete retune and now get a bunch of channels with BBC1 West (etc) on channel 49, with good reception. So far so good. But your table shows (I think!) that on 31 March this year BBC1 (etc) moved to Channel 32. I get nothing at all on Channel 32. What gives, please?

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Norman Lambert's 10 posts GB flag
Wednesday, 16 May 2018
Bill McDonald

2:09 PM

Just purchased a brand new up to date TV and had a new K aerial installed and guess what from my location here in Somerset I still cannot get consistent reception of all the HD channels, it has now proved beyond doubt that digital reception on the Mendip transmitter is worse than useless in the Yeovil area. We sit on the crosswires of Mendip, Stockton Hill and Rowridge and none of them give us a decent service. If ever a place needed a relay it's here. I think it's time to pack it all in and go back to radio.

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Bill McDonald's 40 posts GB flag
Bill McDonald

2:13 PM

Sorry that should be Stockland Hill and not Stockton!

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Bill McDonald's 40 posts GB flag

2:57 PM

Bill McDonald: I can see that parts of Yeovil seem to be a bit of a no-go area, but obviously it depends on where you are, your postcode will enable a better prediction of likely reception.

Is it only the HD channels you are having a problem with - if so which mux? BBCB, COM7 or 8?

Another possibility you might consider, does your new TV have a built-in Satellite tuner?

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Chris.SE's 3,935 posts GB flag

3:12 PM

A G Hearn: Is it only Sky News and Dave you are having a problem with on the ARQA/COM5 mux - ie. are you getting - Pick (11), Sony Movie Channel (32), Movies4Men (48)? If you are getting these other channels, then it's possible that retuning hasn't put all the channels in the correct location - you might find them in the 800's. In which case I would suggest a full reset - see your TV manual if need be, but the usual method is the do a full automatic scan with the aerial unplugged.
You may get some help from the Freeview reset procedure link (in the top area of the comment box here).

However there are other possible reasons and your postcode would help to look at the likely reception in your location. You may be in a difficult spot, there may be local interference, you may possibly now have too much signal.

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Chris.SE's 3,935 posts GB flag

4:23 PM

Bill McDonald: put your postcode into the site, and it should tell you signal you should get at your location. If it's rubbish because of geography etc, just get Freesat.

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MikeB's 2,579 posts GB flag
Tuesday, 22 May 2018
Bill McDonald

3:28 PM

Hi Folks, thanks for getting back with the information, postcode is BA22 8TX and it is the Com 7/8 channels that are a nightmare. Mike nice suggestion on Freesat, but why should I spend even more money, as far as I can see digital is a hit and miss service, I hope to God they increase the power on Com 7/8 eventually.

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Bill McDonald's 40 posts GB flag
Bill's: mapB's Freeview map terrainB's terrain plot wavesB's frequency data B's Freeview Detailed Coverage

3:55 PM

Bill McDonald:

I note from the Freeview Map that we can now see, that you are near to a generic mobile phone mast. It is possible that you are having interference from that mast. Contact AT800 at Contact us | Advice or general enquiries | at800 They well provide a filter free of charge to try and eliminate any problems due to 4G signals.

As for power output on COMs 7&8, there is no plan to increase the output of these multiplexes. If they are the ones giving most problems, then it may be that your aerial is not the required wideband type. If you have not had it changed in the last teo/three months then it is likely to not be a wideband type and I'd advise having it changed for a good quality one, but don't fall for the 'digital aerial' con as there is no such thing.

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MikeP's 3,056 posts GB flag
Transmitter engineering

6:05 PM

MENDIP transmitter - DAB: BBC National DAB Radio Weak Signal from 15:15 today. [BBC]

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Transmitter engineering's 146,829 posts xx flag
Transmitter engineering

9:05 PM

MENDIP transmitter - DAB: BBC National DAB Radio Weak Signal from 15:15 today to 18:53 today. [BBC]

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Transmitter engineering's 146,829 posts xx flag
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Please post a question, answer or commentIf you have Freeview reception problems before posting a question your must first do this Freeview reset procedure then see: Freeview reception has changed, Single frequency interference, and Freeview intermittent interference.

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