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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 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?

1984-971997-981998-20102010-1327 Mar 132013-1727 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
Thursday, 5 April 2012
C
Chris.SE
sentiment_satisfiedSilver

10:23 PM

Malcolm Brooks:
As you live in a block of apartments, the distribution system will no doubt be channelised and a filter will need changing with the channel change, this is why you experienced things working correctly after a week last time - the length of time the Management took to get the aerial contractor in to change the filters. I'd be asking for a refund on some rental or maintenance fees!!

Amphy:
If you live in flats, you may have the same issue as Malcolm Brooks.
However, if you have an aerial amplifier, it is also possible you may have too much signal. If it's an internal one, try taking it out of circuit.

Bizman:
Whilst it's possible that Alison Armshaw may have too much signal it is also possible that her PSB1/2/3 muxes have tuned to the local Bath repeater as these are lower UHF channel numbers - she didn't specify which programmes she had problems with!

link to this comment
Chris.SE's 251 posts GB
C
Chris.SE
sentiment_satisfiedSilver

10:37 PM

Alison Armshaw:
If you are still having problems then do a full factory reset of your TV/box as described at the top of this page My Freeview box has no EPG, is blank on FIVE, ITV3, ITV4, ITV2+1, has no sound or the channel line up is wrong | ukfree.tv - independent free digital TV advice
At step 6, I would then leave the aerial unplugged until the scan has got to about say 40% or above UHF channel 30 depending on your display. If that doesn't work, do the clear/reset again and the do a manual retune using UHF channels C61, C54, C48, C52, C56 and if you HD C58.

link to this comment
Chris.SE's 251 posts GB
C
Chris.SE
sentiment_satisfiedSilver

10:41 PM

Sue:
Have you had any channel loss with any of the previous retunes that have eventually got resolved? If so, you may have a channelised system as I mentioned to Malcolm Brooks.
If not, try the reset I've just mentioned for Alison Armshaw.

link to this comment
Chris.SE's 251 posts GB
Saturday, 7 April 2012
B
Ben Ward
sentiment_satisfiedBronze

11:42 AM
Melksham

Dave Lindsay, you said "Check that the receivers are tuned to the channels used by Mendip and not Bath." How do I do this exactly, please?

Thank you,
Ben

link to this comment
Ben Ward's 28 posts GB
B
Ben Ward
sentiment_satisfiedBronze

11:56 AM

...and Mike Dimmick, is this a suitable attenuator do you reckon? Adjustable 0-20dB attenuator, coaxial connector version: Amazon.co.uk: Electronics

Thanks!
Ben (SN126BF)

link to this comment
Ben Ward's 28 posts GB
Dave Lindsay
sentiment_very_satisfiedPlatinum

12:15 PM

Ben Ward: Hopefully the signal strength screen gives the UHF channel that the receiver is tuned to (most do, although some don't).

As services are transmitted in groups known as multiplexes or "muxes", you only need check one service from each mux.

Bath only transmits only Public Service channels (BBC, ITV1, C4, C5 etc) so if this is the problem then it will only affect them.

BBC One should be tuned to C61 for Mendip and not C25 for Bath. ITV1 should be tuned to C54 for Mendip and not C28 for Bath. If any of these receivers are HD, then BBC One Hd should be tuned to C58 and not C22.

link to this comment
Dave Lindsay's 5,724 posts GB
Dave Lindsay
sentiment_very_satisfiedPlatinum

12:17 PM

Ben Ward: If this does turn out to be the case, run the automatic tuning scan with the aerial unplugged up to 50% and you'll miss out channels used by Bath and those immediately above it but be plugged in for Mendip.

link to this comment
Dave Lindsay's 5,724 posts GB
Sunday, 8 April 2012
C
Chris.SE
sentiment_satisfiedSilver

12:40 AM

Ben Ward:
The attenuator you have asked Mike about should be fine.

link to this comment
Chris.SE's 251 posts GB
Tuesday, 10 April 2012
E
Ed Stone
6:38 PM

Im in street. Today we seem to be experiencing very bad break up on the bbc channels i recently rescanned them following the advice on here. Anyone got any ideas?

Ive tried doing a rescan on c61 for the bbc channels.

Cheers

Ed

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Ed Stone's 1 post GB
T
The Wakefield
11:52 PM

Hello there, knowledgeable people! ^_^ I'm having a terrible problem with Freeview Reception and was wondering if anyone could confirm or deny that the Mendip Transmitter is having any engineering work done to it? After the slight channel change on the 28th of March when all the channels were set to full whack, we had perfect reception for a day or two (I forget how long exactly ^_^;) but after that day or two, like I said, our reception is terrible. Channels 54 & 48're not perfect but definitely the strongest, next is 52, and depending on the time of day 61 & 56 are unwatchable. I've noticed a few other people with similar problems so is it us, or is there something going in Mendip that we don't know about? Thanks for reading! ^_^

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The Wakefield's 6 posts GB
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