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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 27/05/2024 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 Drama, 21 5USA, 29 ITV2 +1, 32 5STAR, 33 5Action, 38 Channel 5 +1, 41 Legend, 42 GREAT! action, 57 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 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 TV 2, 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
12 Quest, 25 W, 27 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.

Thursday, 3 February 2011

2:23 PM

Miss Moppet: Right, and your wall socket connects to ... oh yes, an outside aerial...

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Briantist's 38,915 posts GB flag
David Pickering

7:22 PM

As has been said so many times down leads are as important if not more important than your aerial.
TX100 OR EQ.min
Dont think just because you have a nice looking aerial mounted on a wall bracket that is drilled on your chimmney stack, that shouldnt have been mounted there in the first place is meaning your reception is A1, because your proberly wrong.
1st A wall bracket is designed to be mounted on a wall.
2nd a chimmney mount is lashing wire thats wound round a chimmney stack with a bracket thats held by the wires, reasons for this are to balance the strain on the stack, because its a single brick assembly thats acually not that strong.
Maybe people like the CAI should look at these simple things because many members of there memberships dont seem to know the difference between the two.
I mean after all just check a advert on the top of this page, a lovely picture of the royal crescent, then another click... and what do we have, a rigger mounting a wall bracket on a chimmney pot of a listed building, made of no less than soft Bath stone, that says it all.
To be honest im so suprised that even the most basics of skills that i teached so many years ago have been negelected.
I personally do alot of work for trusts in Bath and would be kicked off site if i produced some of the workmanship i see today.

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David Pickering's 41 posts GB flag

8:01 PM

David Pickering: Yes indeed, excellent points.

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Briantist's 38,915 posts GB flag
David Pickering

8:11 PM

You do a good job here Brian, I take my hat off to you.
All the best mate

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David Pickering's 41 posts GB flag
Friday, 4 February 2011

8:36 AM

David Pickering: Thank you very much.

link to this comment
Briantist's 38,915 posts GB flag
7:48 PM

I am getting very variable signal strength on the BBC multiplex at 7:45 tonight watching the England-Wales rugby programme. Normally the quality is rock steady at 100% but while it is at 100% mostly, it is dropping to 30% or 40% for a second every now and then. Strength is 58 to 60%.
Strangely, all the other multiplexes, including the low power ones, are absolutely fine, with rock steady 100% quality (eg ITV is 62% strength, 100% quality).
It is very windy but I have checked and my aerial is not moving in the wind.
Does anyone have any ideas?

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John's 8 posts GB flag
8:05 PM
Shepton Mallet

Since yesterday we have been unable to watch any of the bbc channels, all of them are blocky and keep on freezing. Its been very windy today but yesterday it wasn't like that.

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Tracy's 17 posts GB flag
Tracy's: mapT's Freeview map terrainT's terrain plot wavesT's frequency data T's Freeview Detailed Coverage
Saturday, 5 February 2011

8:34 AM

John: There is a weather front moving over the UK causing tropospheric ducting aka What is the Inversion Effect and why does it effect my Freeview TV reception?
| - independent free digital TV advice

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Briantist's 38,915 posts GB flag

11:18 AM

When I check my terrain to the transmitters it shows my alitude as 79 meters. Google earth shows 6 meters which is correct. Is it possible to to change this. Pete.

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PeteGreen's 54 posts GB flag

11:39 AM

Hi Brian, an update to the "Transmission frequencies" section (just above "Notes") on this page would be a nice idea to resolve some confusion.
In the Note below "After Wednesday 7th April 2010" it still mentions C59+ for ArqB now on C67 until 28 Sep 2011, when it moves to C52. On the same date SDN moves to C48.
Also C48 and C52 are missing from the "After Wednesday 7th April 2010" mux list row.
Regards, Chris.

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Chris.SE's 251 posts GB flag
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