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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 - Freeview: HD Digital TV Reduced Quality from 20:26 today to 20:32 today. BBC

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-3100,000W
Channel icons
1 BBC One (SD) West, 2 BBC Two England, 9 BBC Four, 201 CBBC SD, 202 CBeebies, 231 BBC News, 232 BBC Parliament, 250 BBC Red Button, plus 16 others

 H max
C34 (578.0MHz)591mDTG-3100,000W
Channel icons
3 ITV (SD) (West), 4 Channel 4 (SD) South ads, 5 Channel 5 (SD), 6 ITV 2, 10 ITV3, 13 E4, 14 Film4, 15 Channel 4 +1 South ads, 18 More4, 24 ITV4, 33 ITV +1 (West), 45 Film4 +1,

 H max
C35 (586.0MHz)591mDTG-6100,000W
Channel icons
86 More4 +1, 101 BBC One HD (England no regional news), 102 BBC Two HD (England), 103 ITV HD (ITV Meridian Southampton), 104 Channel 4 HD South ads, 105 Channel 5 HD, 204 CBBC HD,

 H max
C48 (690.0MHz)591mDTG-8100,000W
Channel icons
20 Drama, 21 5USA, 27 ITV2 +1, 30 5STAR, 34 ITV3 +1, 37 Quest, 44 Channel 5 +1, 54 Paramount Network, 55 5SELECT, 58 ITVBe +1, 59 ITV4 +1, 63 Blaze, 66 CBS Reality, 70 Horror Channel, 76 Quest +1, 77 TCC, 80 Blaze +1, 87 Keep It Country, 203 CITV, 211 Ketchup TV, plus 21 others

 H max
C33 (570.0MHz)591mDTG-8100,000W
Channel icons
11 pick, 12 Dave, 17 Really, 28 E4 +1, 32 Sony Movie Channel, 38 Quest Red, 41 Food Network, 46 Challenge, 48 Movies4Men, 61 True Entertainment, 72 YourTV, 233 Sky News, plus 9 others

 H max
C36 (594.0MHz)591mDTG-8100,000W
Channel icons
19 Yesterday, 25 Home, 29 4Music, 31 5Spike, 39 CBS Justice, 42 DMAX, 47 4seven, 62 True Movies, 71 CBS Drama, 73 Sewing Quarter, 79 Dave ja vu, 81 Talking Pictures TV, plus 16 others

 H -10dB
C51 (714.0MHz)591mDTG-1210,000W
Channel icons
from 22nd September 2014: 7 Made in Bristol,

 H -1.4dB
C55 (746.0MHz)591mDTG-672,400W
Channel icons
 Vintage TV, 57 5USA +1, 67 CBS Reality +1, 78 Quest Red +1, 92 Pick +1, 99 Smithsonian Channel HD, 107 BBC News HD, 108 Aljazeera English HD, 109 Channel 4+1 HD, 110 4seven HD, 113 RT HD, plus 2 others

 H -1.6dB
C56 (754.0MHz)591mDTG-669,100W
Channel icons
 CBS Action +1, 56 5STAR +1, 64 Freesports, 83 NOW 80s, 84 Now 90s, 89 Together, 91 PBS America, 96 Forces TV, 106 BBC Four HD, 114 Quest HD, 205 CBeebies HD, plus 2 others

DTG-3 64QAM 8K 2/3 24.1Mb/s DVB-T MPEG2
DTG-6 256QAM 32KE 2/3 40.2Mb/s DVB-T2 MPEG4
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?

1984-971997-981998-20102010-1327 Mar 132013-1727 Feb 2018
C49tv_off BBCABBCA

tv_off Being removed from Freeview (for 5G use) by 30 June 2020 - 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, 27 February 2018
11:43 PM

I re-scanned earlier and Channel 56 has moved to channel 36 ahead of the planned schedule.

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Ian's 1 post GB
Wednesday, 28 February 2018
Transmitter engineering

4:30 AM

MENDIP transmitter - Freeview: BBC Digital TV Off Air; DSO related from 00:14 yesterday to 04:27 yesterday, HD Digital TV Off Air; DSO related from 00:14 yesterday to 04:28 yesterday. [BBC]

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Transmitter engineering's 118,591 posts xx
8:51 AM

The schedule of the 700 MHz clearance changes on the Mendip transmitter shown on this web site is incorrect.

The correct information is published by digitaluk.
Coverage Checker - Detailed View

The channel 56 to 36 move was as listed by digitaluk and no further work takes place this year!

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Richard's 1 post GB

12:28 PM

To those having oproblems with receiving certain programmes from Mendip, I can assure you that it is not a fault at the transmitter as I have all the usual channels still. As I'm in Trowbridge, I have a Log36 aerial with a powered amplifier adjacent to it. I did the retune yesterday after the overnoght work and all is as expected. No channe;s are missing.

So some may have the wrong aerial to cover all the channels, which is why we recommend a log-periodic aerial as that covers all the frequencies used for Freeview TV and hence will not need replacing if/when there are further changes in the future.

Bruce: It is a well known that a poor connection in an aerial feed can cause loss of just one group of channels in a multiplex. So please do as suggested and check all the leads and connections (by unplugging and then refitting) behind the TV and as far as you can safely reach to the aerial.

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MikeP's 2,787 posts GB
9:53 PM

MikeP: word of advice before faffing with the aerial that was working perfectly fine previously, I recommend trying a re-tune!

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BrizzleRocker's 2 posts GB
Thursday, 1 March 2018
Transmitter engineering

4:30 AM

MENDIP transmitter - Freeview: BBC Digital TV Off Air; DSO related from 00:14 on 27 Feb to 04:27 on 27 Feb, HD Digital TV Off Air; DSO related from 00:14 on 27 Feb to 04:28 on 27 Feb. [BBC]

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Transmitter engineering's 118,591 posts xx

11:22 AM


It is always good advice to check all the aerial connections BEFORE attempting a retune. All a retune will do is wipe all the current tuning stettings and that is not something you want to do if the problem is with one multiplex.

Checking aerial connections is something that we television service engineers have been doing for more than 70 years, as even in the days of VHF TV there were problems of corrosion affecting coaxial plugs/sockets causing loss, or poor reception, of some signals whilst others were perfect.

I did not suggest any work on the aerial other than recommending use of a log-periodic aerial for all reception of all channel now and in the future.

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MikeP's 2,787 posts GB
Saturday, 3 March 2018
2:48 AM

This info is unhelpfully out of date. Ch56 is now defunct and Dave can now be found on Ch33.

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SimonP's 1 post GB

6:36 PM

SimonP: The frequency change only took place a few days ago. Have some patience, it takes time for websites to be updated by their owners.

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StevensOnln1's 2,442 posts GB
Sunday, 4 March 2018
VW Mike
10:17 AM

Just to help people out until the site is updated:

Since 28-02-18 :

ARQA is now on channel 33 (was 56)

COM7 is now on channel 36 (was 33)

I do not know if LBS is still on Channel 51 - all other channels were not changed.

The listed 31st March 2018 change above is completely fictitious - there is no change due before April 2019 and even then those channel numbers are completely wrong.

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VW Mike's 1 post GB
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Your comment please
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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If you have other problems, please provide a full (not partial) postcode (or preferably enter it in box at the top right) and indicate where if aerial is on the roof, in the loft or elsewhere.

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