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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 25/03/2024 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
Monday, 18 October 2021
M
MossMan
6:50 AM

Does the announced engineering for week commencing 11/Oct affect DAB as well?

I've been experiencing the signal dropping out when listening to BBC 6 music in the car when normally it's string enough to play when I take aerial off to go through the car wash!

link to this comment
MossMan's 6 posts GB flag
M
MossMan
6:52 AM

"string enough" should read "strong enough" of course... :-)

link to this comment
MossMan's 6 posts GB flag
Transmitter engineering
sentiment_very_satisfiedOwner

8:36 AM

Mendip transmitter - Mendip transmitter: Possible effect on TV reception week commencing 18/10/2021 Possible Pixelation or flickering on some or all channels [DUK]

link to this comment
Transmitter engineering's 149,799 posts GB flag
S
StevensOnln1
sentiment_very_satisfiedPlatinum

10:06 AM

MossMan: Any engineering work which involves reducing the transmitter power temporarily will potentially require other services to be reduced in power or switched off temporarily whilst the work takes place. This is often done for the safety of the engineers working on the transmitter.

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StevensOnln1's 3,606 posts GB flag
C
Chris.SE
sentiment_very_satisfiedPlatinum

10:14 PM

MossMan:

It could depend on where the car wash is :D
Mendip is not the only transmitter in the area transmitting the BBC National mux on 12B.
I can't find any reports of other transmitters in the immediate Bristol region being affected, but I've not found the BBC Engineering list too reliable when it comes to just DAB Planned Engineering unless there an actual service interruption.

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Chris.SE's 4,102 posts GB flag
Sunday, 24 October 2021
M
MossMan
10:49 PM

Thanks guys. Well the poor DAB signal affected most stations where I am (North Somerset) for about a week but now it's fine again. So I expect it was the transmitter after all. Can't be sure though - didn't go through the car wash to check. ;-)

link to this comment
MossMan's 6 posts GB flag
Monday, 25 October 2021
Transmitter engineering
sentiment_very_satisfiedOwner

5:43 AM

Mendip transmitter - Mendip transmitter: Possible effect on TV reception week commencing 25/10/2021 Possible Pixelation or flickering on some or all channels [DUK]

link to this comment
Transmitter engineering's 149,799 posts GB flag
Friday, 19 November 2021
Transmitter engineering
sentiment_very_satisfiedOwner

12:13 PM

Mendip transmitter - Mendip transmitter: Possible effect on TV reception week commencing 15/11/2021 Screen may go black on some or all channels [DUK]

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Transmitter engineering's 149,799 posts GB flag
Saturday, 20 November 2021
C
Chris Fennell
4:21 PM

Please can you explain why my TV can pick up Freeport's but neither of my set top boxes do. I have noticed a signal strength of 78 per cent, but quality is 0.

Thank you

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Chris Fennell's 2 posts GB flag
C
Chris.SE
sentiment_very_satisfiedPlatinum

7:49 PM

Chris Fennell:

I'm sure you meant FreeSports (LCN64 in your EPG). FreeSports is carried on the COM7 (HD) mulitplex so your TV obviously has a T2/HD tuner.
See Channel listings for Industry Professionals | Freeview for which channels are carried on which multiplex.
You presumably don't get LCNs 70, 76, 86, 87, 91 or 96 on your set top boxes either.

I assume on your TV you'll be getting LCNs 101-107, but do you get LCNs 101-105 on either set top box? If not they probably don't have T2/HD tuners. If they do get 101-105 then where are they in relation to the TV? Are they indifferent rooms, or how are all the aerial connections done - what plugs into what etc.?

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Chris.SE's 4,102 posts GB flag
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