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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 04/11/2024 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), 71 That’s 60s,

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 U&Drama, 21 5USA, 29 ITV2 +1, 32 5STAR, 33 5Action, 38 Channel 5 +1, 41 Legend, 42 GREAT! action, 57 U&Dave ja vu, 58 ITV3 +1, 59 ITV4 +1, 64 Blaze, 67 TRUE CRIME, 68 TRUE CRIME XTRA, 81 Blaze +1, 83 Together TV, 91 WildEarth, 93 ITVBe +1, 209 Ketchup TV, 210 Ketchup Too, 211 YAAAS!, 251 Al Jazeera English, 255 FRANCE 24 (in English), 265 Rok Sky +1, plus 29 others

COM5
ArqA
 H max
C33 (570.0MHz)591mDTG-8100,000W
Channel icons
11 Sky Mix, 17 Really, 19 U&Dave, 31 E4 Extra, 36 Sky Arts, 40 Quest Red, 43 Food Network, 47 Film4 +1, 48 Challenge, 49 4seven, 60 U&Drama +1, 65 That's TV 2, 70 Quest +1, 74 &UYesterday +1, 76 That's TV 2 MCR, 233 Sky News, plus 13 others

COM6
ArqB
 H max
C36 (594.0MHz)591mDTG-8100,000W
Channel icons
12 Quest, 25 U&W, 27 U&Yesterday, 34 GREAT! movies, 39 DMAX, 44 HGTV, 52 GREAT! christmas, 56 That's TV (UK), 63 GREAT! romance mix, 73 HobbyMaker, 75 That's 90s, 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
Tuesday, 21 June 2022
B
B Fair
8:58 PM

Surely viewers living in the drop out zones should receive a TV License rebate? Improving transmission would be one of the cheapest ways to level up society in 2022.

link to this comment
B Fair's 1 post GB flag
S
StevensOnln1
sentiment_very_satisfiedPlatinum

10:22 PM

B Fair: What do you mean by dropout zones? The TV Licence is not a subscription, it only funds the BBC and S4C who make their channels available as widely as possible, i.e. every national BBC channel is broadcast from all 1,100+ transmitters, S4C is broadcast from every transmitter in Wales, BBC Scotland & BBC Alba are broadcast from every transmitter in Scotland, as well as all BBC regions being available on satellite and iPlayer. Viewers in Freeview Lite areas who don't have satellite or cable are still receiving all the channels funded by the licence fee, the commercial channels that aren't available in those areas don't receive a penny of licence fee funding.

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StevensOnln1's 3,669 posts GB flag
Wednesday, 22 June 2022
C
Chris.SE
sentiment_very_satisfiedPlatinum

3:00 AM

B Fair:

If you have been experiencing some breaks in your signals in the last couple of weeks it's because Mendip is currently listed for Planned Engineering with Possible effect on TV reception "Pixelation or flickering on some or all channels".
If it's been going on for longer than that (continuously) please provide a full postcode and we can check your predicted reception. Other than that you may of course have some sort of fault on your aerial installation or cabling, check all your coax connections behind your TV.

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Chris.SE's 4,356 posts GB flag
Wednesday, 3 August 2022
C
Chris.SE
sentiment_very_satisfiedPlatinum

4:20 PM

I see Mendip is still listed for Planned Engineering, but information on Engineering work isn't automatically coming up on Transmitter pages.
See Planned engineering works | Freeview

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Chris.SE's 4,356 posts GB flag
Sunday, 14 August 2022
M
Melita Davis
4:55 PM

Having problems with Channel 50. I have tried everything to try and get this Channel to work. No other channels are affected. It keeps coming up as no signal. Have checked the aerial, have tried re-tuning, have tried the lot and still nothing. Strange how no other channels are affected.

link to this comment
Melita Davis's 1 post GB flag
C
Chris.SE
sentiment_very_satisfiedPlatinum

10:22 PM

Melita Davis:

Hi, you say no other channels are affected, 50 (LCN50) is carried on the Local multiplex, do you get the following (also on the Local multiplex) -
LCN7 Bristol TV, LCN52 GREAT! movies classic, LCN61 GREAT! movies +1, LCN68 RealityXtra, LCN207 Tiny Pop ?

If you are not getting any of them then you are not receiving the Local multiplex.
If you are getting any of them, it's possible that LCN50 may actually be in the 800s and your sets memory needs clearing, so unplug the aerial and do an automatic full retune. No channels should be found and this should clear memory.
Plug the aerial back in and do a retune. Hopefully all channels will be correctly restored.

link to this comment
Chris.SE's 4,356 posts GB flag
Thursday, 1 December 2022
J
John Balchin
3:25 PM

I appear to be getting picture breakup and a poor signal from mendip transmitter channel 48

link to this comment
John Balchin's 1 post GB flag
C
Chris.SE
sentiment_very_satisfiedPlatinum

4:18 PM

John Balchin:

The transmitter isn't currently listed for Planned Engineering, nor has it been recently and there don't appear to be any faults listed. As far as I can tell it's operating normally.

As you haven't given a full postcode, I can't check your normal predicted reception which may be marginal in your location under adverse weather conditions, also depending on aerial location.

Your problems with reception are most likely due to current weather conditions causing some "Tropospheric Ducting" resulting in Interference coming from distant transmitters (in Europe or the UK) which is currently affecting some parts of the south and southwest.

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Chris.SE's 4,356 posts GB flag
Friday, 2 December 2022
P
Paul Jennings
7:09 PM
Worcester

i continue to get very variable reception at WR5 2HZ no 10. It is in the green area for Mendip.
Is there a good reason why COM7 ARQB and SDN are so unreliable. They appear to be broadcast at the same power as BBC and D3+4 which are fine. The aerial is mounted on the lefthand side of house at a height which I believe is the optimum to avoid the trees in the direction of the aerial. Thank you

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Paul Jennings's 2 posts GB flag
Paul's: mapP's Freeview map terrainP's terrain plot wavesP's frequency data P's Freeview Detailed Coverage
S
StevensOnln1
sentiment_very_satisfiedPlatinum

11:43 PM

Paul Jennings: COM7 closed at the end of June, perhaps you mean COM5/ArqA? You're 109km away from Mendip and your postcode is predicted to get better reception of the COM4/5/6 multiplexes and similar reception of the PSB1/2/3 muxes from Malvern (only 11km away approximately to the south-west of you) so it may be worth considering having your aerial turned towards Malvern and rotated from horizontal to vertical polarity, or perhaps fit a new wideband type which will perform better on the lower frequencies used for COM4/5 if you're currently using an older grouped aerial (Mendip was historically Group C/D which only covered the higher frequencies of the UHF band).

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StevensOnln1's 3,669 posts GB flag
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