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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 15/04/2024 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
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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-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

PSB2
D3+4
 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),

PSB3
BBCB
 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

COM4
SDN
 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, 83 Together TV, 89 ITV4 +1, 91 WildEarth, 209 Ketchup TV, 210 Ketchup Too, 211 YAAAS!, 267 Al Jazeera English, plus 30 others

COM5
ArqA
 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

COM6
ArqB
 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), 61 GREAT! movies extra, 63 GREAT! romance mix, 71 That’s 60s, 73 HobbyMaker, 82 Talking Pictures TV, 84 PBS America, 235 Al Jazeera Eng, plus 18 others

LBS
 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
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 / 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.

Comments
Saturday, 8 June 2019
B
Barrie Peers
10:47 AM

I live on the welsh side of the Bristol channel and use Mendip transmitter for my Freeview reception. I must manual tune to ensure I get the correct channels and not ones from wenvoe. Here are the Frequencies that are working for me at this time, they seem at odds with what is published above here. Hope this is of use to others struggling.
ch32 562000
ch33 570000
ch34 578000
ch35 586000
ch36 594000
ch48 690000
ch51 714000
ch52 722000
ch56 754000

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Barrie Peers's 1 post GB flag
S
Smiffy
11:03 AM

I'm in Wells, line of sight from my wideband aerial to the transmitter.
I'm seeing nothing on ch51 714000 so I doubt what you are seeing is from Mendip.
ch36 594000 is very poor. A scan picks up all the channels, but HD ones don't play at all and SD ones are jerky.

link to this comment
Smiffy's 4 posts GB flag
S
Smiffy
11:12 AM

It may also be worth mentioning, I only picked up on ch36 594000 a couple of days ago, and at that point, all the channels were fine, just yesterday and today that I have had a problem viewing them.

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Smiffy's 4 posts GB flag
Sunday, 9 June 2019
C
Chris.SE
sentiment_very_satisfiedPlatinum

12:26 AM

ALL:

Please read various previous posts from p186 onwards from myself, MikeP, StevensOnln1 and some others which explain about the retune events, some of the bugs/errors on this site and give links to DigitalUK and Freeview pages where you can get the correct up-to-date & forthcoming change information. There's also explanation on how to do a reset/retune (as there is elsewhere on this site) to ensure your system(s) is cleared of any out of date tuning information which can "confuse" some equipment and get the correct multiplexes from Mendip.

Some of you MAY require a new T-band/Wideband aerial where your old aerial doesn't provide an adequate signal for some of the new UHF channel allocations for the multiplexes. Links to the Freeview site give pages where you can get help and may qualify for a free aerial upgrade if you don't have cable and/or satellite.

For anyone on a communal aerial where others are having an identical problem not receiving some multiplexes, as already mentioned you will need to contact the manager of your complex for the distribution system and/or aerial to be checked/upgraded.

For anyone still having problems after following the previous links and advice, please post details of your problem and state which steps/advice you have already followed from previous posts and what happened.

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Chris.SE's 4,133 posts GB flag
S
Smiffy
11:29 AM

Noon on Sunday 9th June, and all the channels (SD and HD) on ch36 594000 are working for me.

link to this comment
Smiffy's 4 posts GB flag
P
Phil
4:03 PM

SInce update to Menip transmitter on 5th June.our PSB1 (channel 32) signal is very low. Our signal comes via Hutton relay post. Are there plans to amplify the signal as have had problems with signal breakup sincere tuning TV with this channel only

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Phil's 1 post GB flag
MikeP
sentiment_very_satisfiedPlatinum

9:50 PM

Phil:

Hutton, being a relay, is very unlikely tpo have its power output changed.

Do you have a wideband aerial in use? If not you need to have one fitted. That is likely to be the cause of your problems.



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MikeP's 3,056 posts GB flag
Monday, 10 June 2019
S
StevensOnln1
sentiment_very_satisfiedPlatinum

9:41 AM

Phil: According to Digital UK, the Hutton relay is changing frequencies and increasing power output on 19th June. You will likely need a new aerial (if your existing one isn't wideband) as the transmitter is changing from Group C/D to Group A frequencies. This should be available free of charge if you don't have satellite or cable.

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StevensOnln1's 3,620 posts GB flag
Wednesday, 12 June 2019
S
Smiffy
12:49 PM

1pm on 12th June, and a scan is showing nothing on ch36 594000 (com7 HD) again.
All the websites are reporting 100% signal/no problems.
Hopefully after the next retune it will settle down.

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Smiffy's 4 posts GB flag
D
David Kirton
2:42 PM
Caldicot

Since the recent update at the Mendip transmitter, we have a reduced signal quality. Resulting in the picture pixating and sound quality poor. My post code is NP26 5RN.

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David Kirton's 1 post GB flag
David's: mapD's Freeview map terrainD's terrain plot wavesD's frequency data D's Freeview Detailed Coverage
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