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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 06/12/2021 Screen may go black on some or all channels Digital tick


Choose from three options: ■ List by multiplex ■ List by channel number ■ List by channel name
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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.

MuxH/VFrequencyHeightModeWatts
PSB1
BBCA
 H max
C32 (562.0MHz)591mDTG-3100,000W
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, 250 BBC Red Button, plus 16 others

PSB2
D3+4
 H max
C34 (578.0MHz)591mDTG-3100,000W
Channel icons
3 ITV (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, 25 ITV4, 30 E4 +1, 35 ITV +1 (West),

PSB3
BBCB
 H max
C35 (586.0MHz)591mDTG-6100,000W
Channel icons
73 Shopping Quarter , 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, plus 1 others

COM4
SDN
 H max
C48 (690.0MHz)591mDTG-8100,000W
Channel icons
 CCXTV, 12 Quest, 20 Drama, 21 5USA, 29 ITV2 +1, 32 5STAR, 33 5Action, 42 GREAT! movies action, 45 Channel 5 +1, 56 5SELECT, 58 ITVBe +1, 59 ITV3 +1, 60 ITV4 +1, 64 Blaze, 67 CBS Reality, 68 Horror Channel, 74 Drama +1, 78 TCC, 81 Blaze +1, 203 CITV, 211 Ketchup TV, 212 YAAAS!, plus 16 others

COM5
ArqA
 H max
C33 (570.0MHz)591mDTG-8100,000W
Channel icons
11 Sky Arts, 17 Really, 19 Dave, 31 4Music, 36 pick, 40 Quest Red, 43 Food Network, 46 Film4 +1, 47 Challenge, 48 4seven, 57 Smithsonian Channel, 70 Quest +1, 75 Yesterday +1, 83 Together TV, 233 Sky News, plus 9 others

COM6
ArqB
 H max
C36 (594.0MHz)591mDTG-8100,000W
Channel icons
25 Dave ja vu, 27 Yesterday, 34 GREAT! movies, 39 DMAX, 41 CBS Justice, 44 HGTV, 68 CBS Drama, 82 Talking Pictures TV, 84 PBS America, 234 RT, 235 Aljazeera English, plus 17 others

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

com7
 H -1.4dB
C55 (746.0MHz)591mDTG-672,400W
Channel icons
 Together TV +1,  Merit,  Court TV, 65 FreeSports, 71 Quest Red +1, 76 Now 70s, 86 More4 +1, 87 PBS America +1, 91 That's TV , 96 Forces TV, 106 BBC Four HD, 107 BBC News HD, 113 RT 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?

1984-971997-981998-20102010-132013-182013-1727 Feb 2018
C/D EEEC/D EC/D E TW TW T
C30_local
C32BBCA
C33com7com7
C34D3+4
C35com8com8
C36ArqB
C37C5wavesC5waves
C48SDNSDNSDNSDN
C49tv_off BBCABBCA
C51tv_offLBSLBS
C52tv_offArqBArqBArqB
C54tv_offC4wavesC4wavesC4wavesD3+4D3+4D3+4
C55tv_offcom7tv_off
C56tv_offArqAArqAArqACOM8tv_off
C58tv_offBBC1wavesBBC1wavesBBC1wavesBBCBBBCBBBCB
C61ITVwavesITVwavesITVwavesBBCA
C64BBC2wavesBBC2wavesBBC2waves

tv_off Being removed from Freeview (for 5G use) after November 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.

Comments
Wednesday, 5 January 2022
J
John B
4:46 PM

Thank you Chris.SE. Very helpful!

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John B's 2 posts GB
John's: mapJ's Freeview map terrainJ's terrain plot wavesJ's frequency data wifiJ's R&TI Service businessJ's digitaluk trade radioJ's DAB coverage
Monday, 10 January 2022
T
Tracey Williams
1:56 PM

I have lost my local news program which I received from the Mendip transmitter. When checked in manual settings it provides a poor signal now and i have been switched to the Stockland hill transmitter. How do I return to the channels provided by the Mendip transmitter as other channels seem to have gone as well?
Thank you

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Tracey Williams's 1 post GB
C
Chris.SE
sentiment_very_satisfiedPlatinum

11:01 PM

Tracey Williams:

Without a postcode, I can only assume you are in the Southern/SouthWestern part of Somerset if you can also receive Stockland Hill. How did you get tuned to Stockland Hill? Did you do a retune and why?
If you happened to retune when you had no signal (from Mendip) then that's why. If you were correctly tuned to start with, It is never advised to retune when you have no signal.

The best solution in these situations is usually as follows -
Unplug your aerial from the TV and then do an automatic full retune. As you should have no signal at all, this should clear all previous tuning.
If you are using something like a Youview box instead, this might not clear the channels, you may have to end up doing a reset and so watch what it may do to any recordings, you'll probably have redo any scheduled recordings you've set.

Then, plug the aerial back in and on your set select manual tuning do you can tune to Mendip's UHF channels.
Mendip's correct UHF channels are C32, C34, C35, C48, C33, C36, C55, C30. That's is the order BBCA/PSB1, D3&4/PSB2, BBCB HD/PSB3, SDN/COM4, ArqA/COM5, ArqB/COM6, COM7; Local mux. You most likely won't get the Local Mux to the south of Mendip as the Local mux is beamed northerly towards Bristol and South Gloucestershire. You may not get COM7, that's very location dependent.

See https://www.freeview.co.uk/corporate/platform-management/channel-listings-industry-professionals for which channels are carried on which multiplex.

If for some reason your set doesn't give a manual tuning option, then automatic retune should allow you to select the region which should be West not Southwest.

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Chris.SE's 2,900 posts GB
Thursday, 13 January 2022
J
Jacky Davis
7:20 PM

I am on the Mendip Transmitter and today the signal is scrambled or I have no signal at all. I have unplugged re plugged, reset etc but I am still not getting a signal. I am not technically minded please can you help.
Post code Bs284aw

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Jacky Davis's 1 post GB
C
Chris.SE
sentiment_very_satisfiedPlatinum

9:40 PM

Jacky Davis:

I have to say considering your locale and distance from the transmitter I'm a bit surprised that you've still got a problem.
There's no reported faults or Planned Engineering at Mendip and the transmitter seems to be operating normally.

Have you looked at your aerial to make sure it looks intact and is still pointing in the correct direction which for you should be fractionally N of due E (compass bearing 85 degrees). Also check that your aerial downlead isn't flapping in the wind (assuming it's external).

Unfortunately the current high pressure weather system has also brought some "tropospheric ducting" where signals from distant transmitters in Europe or the UK can be received locally and cause interference to your wanted signals. This is the most likely cause of the problem, but should have now eased.

See the post before your about manual retuning especially as in your location, in normal circumstances you could receive 3 main transmitters of which Mendip is the only one which is West region.
The main message is IF your set was correctly tuned to start with, then do NOT retune if you lose signal, whether this be due to a transmitter fault, a fault on your aerial system or weather conditions.

If you need further help post back again with specific detail about the particular difficulty you are encountering.

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Chris.SE's 2,900 posts GB
Monday, 17 January 2022
N
Nick Richards
11:23 PM
Bristol

Hi
I'm having issues with com7,ch55 from Mendip transmitter. Sometimes the channels are available other times not. My post code is BS14 9BT
Been like this for the last week.
Have carried out retune with no difference.

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Nick Richards's 2 posts GB
Tuesday, 18 January 2022
C
Chris.SE
sentiment_very_satisfiedPlatinum

12:34 AM

Nick Richards:

You are not in the best of locations for COM7 reception unfortunately. It's predicted to be potentially variable but otherwise good when not subject to any interference conditions which is what is currently the problem.

Your intermittent loss is most likely due to current weather conditions. Unfortunately temperature inversion/tropospheric ducting is accompanying the high pressure weather system causing signals from distant transmitters in Europe or the UK to affect reception of wanted signals. COM7 can be more vulnerable than some multiplexes due to operating as an SFN and at lower power than most of the other multiplexes, but it is very much depends on location. Freeview and the BBC have current warning about potential intermittent disruption to reception.

Do NOT retune, when correctly tuned, all this is likely to do is clear your current tuning if no signal is found at that time.
There are no faults or Planned Engineering currently listed for Mendip.

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Chris.SE's 2,900 posts GB
Monday, 31 January 2022
M
michael
2:04 PM

i am in wellington ta21 and there is confusion as to which is the best transmitter for us
We have 2 tv sets and the main ones areial points to Mendip
The other tv has 2 aerials ,one points to Stockland Hill and the other to Mendip which we cant seem to get Plymouth on
What should we do to get Plymouth?
Thanks

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GB
C
Chris.SE
sentiment_very_satisfiedPlatinum

2:26 PM

michael:

If you want Plymouth Local News BBC/ITV then you need to tune to the Stockland Hill transmitter. As you haven't given a full postcode we can't advise on the sort of signal you may get, TA21 is a large area and reception could vary significantly across the area.
You don't say how these two aerials are used. Is it plug into one or the other or are they couple together, if the latter, how?
If they are coupled together, you'll probably need to manual tune the two UHF channels for the BBCA/PSB1 and D3&4/PSB2 multiplexes which carry the BBC and ITV channels respectively. They are C26 and C23 for Stockland Hill.

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Chris.SE's 2,900 posts GB
Wednesday, 16 March 2022
Z
Zena
12:55 PM

I like to watch the News channel and there is is intermittent interference today. It also happened yesterday but is worse today. I rely on my TV as I'm disabled so can you help me with this please. I am unable to reach but the cables look ok.

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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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