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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 19/09/2022 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-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, 26 ITV4, 30 E4 +1, 35 ITV +1 (West),

PSB3
BBCB
 H max
C35 (586.0MHz)591mDTG-6100,000W
Channel icons
56 5SELECT, 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, 106 BBC Four HD, 109 BBC Three HD, 204 CBBC HD, 205 CBeebies HD, plus 1 others

COM4
SDN
 H max
C48 (690.0MHz)591mDTG-8100,000W
Channel icons
12 Quest, 20 Drama, 21 5USA, 29 ITV2 +1, 32 5STAR, 33 5Action, 41 Legend, 42 GREAT! movies action, 46 Channel 5 +1, 58 ITVBe +1, 59 ITV3 +1, 64 Blaze, 67 CBS Reality, 74 Dave ja vu, 78 TCC, 81 Blaze +1, 89 ITV4 +1, 203 CITV, 208 POP MAX, 209 Ketchup TV, 210 Ketchup Too, 211 YAAAS!, plus 15 others

COM5
ArqA
 H max
C33 (570.0MHz)591mDTG-8100,000W
Channel icons
11 Sky Arts, 17 Really, 19 Dave, 31 E4 Extra, 36 pick, 40 Quest Red, 43 Food Network, 47 Film4 +1, 48 Challenge, 49 4seven, 57 Smithsonian Channel, 60 Drama +1, 70 Quest +1, 75 Yesterday +1, 83 Together TV, 233 Sky News, plus 8 others

COM6
ArqB
 H max
C36 (594.0MHz)591mDTG-8100,000W
Channel icons
 FreeSports, 25 W, 27 Yesterday, 34 GREAT! movies, 39 DMAX, 44 HGTV, 71 Quest Red +1, 73 HobbyMaker, 82 Talking Pictures TV, 84 PBS America, 88 Classic Hits, 235 Aljazeera English, plus 19 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


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 / 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, 19 February 2019
L
Lordgeous
sentiment_satisfiedBronze

10:24 PM

I too have been having trouble with freeview (from Mendip) not adjusting start and end times anymore. Most annoying and frustrating. I have two different top end Humax PVRs and smase has been happening with both.

link to this comment
Lordgeous's 25 posts GB
Wednesday, 20 February 2019
C
Clevedon Resident
12:20 AM

Intermittent loss of freeview signal from w/c 18/02/2019 confirmed by other Clevedon residents.
What's happening?

link to this comment
Clevedon Resident's 1 post GB
B
B Daniels Mr
9:17 AM

I have a phone number for you of 01752 663322 but is this right please as I can't raise you?
I have been getting short bursts of no signal o BBC1 latterly and wondered if this was common.

Thank you.

link to this comment
B Daniels Mr's 1 post GB
L
Lordgeous
sentiment_satisfiedBronze

9:49 AM

Yes, I've been getting "No Signal" bursts too for some weeks now. I also find the freeview programme guides very slow to load (same on 3 TVs and 2 PVRs. Never used to have these problems.

link to this comment
Lordgeous's 25 posts GB
MikeP
sentiment_very_satisfiedPlatinum

11:06 AM

Clevedon Resident etc:

There are no known faults at the Mendip transmitter. There are two possibilities. One is that there could be a poor connection in your aerial system, so please check all the cables and connection. Unplug all coaxial plugs/sockets and refit to clear any corrosion/oxidation on the contacts.
Another possibility is that you have too much signal;. Please check the signal strengths on all multiplexes (strength and not quality). It shoudl ideally be between 60% and 85%. If it is more then you have too much signal and it needs to be reduced. If it is less then you need a better aerial (preferrably a widband type or a log-periodic) to receive more signal.



link to this comment
MikeP's 3,056 posts PT
MikeP
sentiment_very_satisfiedPlatinum

11:08 AM

B Daniels Mr:

Please don't publish other people's contact details on a public forum. It is highly dangerous and unwarranted. Especially if it is done without the express permission of the individual concerned.



link to this comment
MikeP's 3,056 posts PT
C
Chris.SE
sentiment_very_satisfiedPlatinum

4:09 PM

Clevedon Resident: & B Daniels Mr: & Lordgeous

There have been a few "bursts" of No Signal over some recent days. As Mendip is not reporting any faults and there is no Planned Engineering this week, I suspect it's the current weather conditions with the high pressure weather system. Patience will be what's required and don't go retuning as you may lose more and tune to incorrect signals or none at all.

link to this comment
Chris.SE's 3,090 posts GB
Thursday, 21 February 2019
A
AntD
3:51 PM

I was having problems on the Mendip Transmitter with no start and finish signal when using a series link for Newsnight on BBC2 HD, which caused the end of the programme to be missed.
It is now working correctly.

link to this comment
AntD's 4 posts US
Friday, 22 February 2019
G
Geoff
7:22 PM

Weak tv signal problems over the last weak. Tonight, Friday, lost all tv between 6.00 pm and 7 pm. My equipment is set to receive TV direct from the Mendip transmitter which has work trouble free for years. I live in Nailsworth Gloucestershire. I have checked all my equipment and feel fairly confident all is ok. When I check the signal through my Youview Box on BBC I find that quality ican be 100% but signal strength is now always low at best around 27%. I presume tonight strength has dropped well below 27%. No reports of any problems with the Mendip Transmitter so does anyone have any ideas what may be the cause of these recent signal problems.

link to this comment
Geoff's 2 posts GB
Saturday, 23 February 2019
C
Chris.SE
sentiment_very_satisfiedPlatinum

12:08 AM

Geoff:

Some parts of Nailsworth could find reception difficult. Put your postcode details in Digital UK - Coverage checker to give predicted coverage for your location.
As I posted recently current high pressure weather has affected reception periodically.
The very large high pressure weather system is set to continue for a few more days yet and so may well cause reception difficulties at various times.

It would be advised to check all your coax connections (remove and re-insert the internal ones), if you've moved anything about in recent times, flyleads can sometimes become faulty. If your aerial installation is a few years old, water may have got into the aerial connector or the aerial may have moved a bit in the high winds in recent times or your downlead may have become damaged or degraded. Visual inspection is a good idea.

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Chris.SE's 3,090 posts GB
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Your comment please
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