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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, 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 Player, 211 Ketchup TV, 212 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 9 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, 91 Classic Hits, 235 Aljazeera English, plus 18 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?

1984-971997-981998-20102010-1327 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 / 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, 5 December 2017
S
StevensOnln1
sentiment_very_satisfiedPlatinum

11:21 PM

Tim Jeanes: You should be able to get good reception of all the HD channels from either Mendip or Wenvoe at your location. Have you checked for any loose or damaged cables or connections behind your TV? What signal strength and quality readings do you get for the SD and HD channels?

link to this comment
StevensOnln1's 3,358 posts GB
Tuesday, 12 December 2017
C
Chris.SE
sentiment_very_satisfiedPlatinum

4:23 AM

Tim Jeanes: Is this a recent change to your reception conditions? To confirm, are you having problems with ALL HD channels or is it just BBC1/ITV/Ch4 etc HD channels (all on BBC Mux B) or is it just BBC4/BBC News HD/QVC HD etc (all on COM7 & 8 muxes).
It may be worth checking that a "retune" has tuned to the correct UHF channels for the Mendip muxes - C58 for BBC B, C33 & C35 for the COM7 & 8 muxes.
The other consideration is the possibility that the recent high winds have moved/damaged your aerial or coax cable/connections to the aerial.

link to this comment
Chris.SE's 3,042 posts GB
B
Bill McDonald
sentiment_satisfiedBronze

8:49 AM

Retune, retune, retune, the order of the day for digital, maybe I'm getting old, but I liked being a TV engineer back in the analogue days, four channels that stayed where you put them (most of the time!), now days I seem to be retuning sets and digiboxs every other week!

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Bill McDonald's 40 posts GB
Monday, 18 December 2017
C
Charles Jeffrey
10:07 AM
South Petherton

Hi . I cannot access group ch 33 nor 41 [ BBc HD ch 4, news, etc]. No signal at all. My postcode is TA13 5EN
and the Mendip mast is fully visible from our house [even downstairs!]. I have 100% on all other channel groups. All connections seem OK. Do I need a retune? Any ideas? Many thanks.

link to this comment
Charles Jeffrey's 1 post GB
S
StevensOnln1
sentiment_very_satisfiedPlatinum

10:16 AM

Charles Jeffrey: If you can see the mast and have 100% signal strength then your TV's tuner is most likely being overloaded with too much signal, the same way you would be deafened if you stood too close to a loudspeaker. Search for the article "Too much of a good thing" on here for more info. Do not attempt to retune, this will not fix it.

link to this comment
StevensOnln1's 3,358 posts GB
J
John Haddock
10:49 AM

Has something happened to CGTN? It's just showing a colour spectrum and the time. All other connected channels eg catch up, Vision, RT, Planet Knowledge are working.

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John Haddock's 3 posts GB
Tuesday, 19 December 2017
C
Chris.SE
sentiment_very_satisfiedPlatinum

7:22 AM

CCTV Freeview channel 260 is a streamed channel (Internet, and so not dependant on the Transmitter) and is indeed showing the Colour Bars. I don't know how long this has been so as I look at those channels very infrequently. For example, Connect 4 on channel 262 (also streamed) has been showing the Test Card for some considerable time IIRC.
In all these cases you'd need to contact the service provider (CGTV for CCTV) to find out why this English service is not currently available. A quick search has not provided any readily available information.

link to this comment
Chris.SE's 3,042 posts GB
Wednesday, 27 December 2017
S
Sylvia
11:11 AM

Our postcode is GL68QG and we normally receive signals from the mendip transmitter. Today 27th November we have no BBC television or Radio as well as other tv programmes not working

Help

link to this comment
Sylvia's 1 post GB
S
StevensOnln1
sentiment_very_satisfiedPlatinum

2:09 PM

Sylvia: There are no reported faults with Mendip, so start by checking for loose cables or connections behind your TV. Do not attempt to retune as this will not fix a loss of signal and will just make the problem worse.

link to this comment
StevensOnln1's 3,358 posts GB
Saturday, 30 December 2017
A
Anthony
8:03 PM

All ITV channels are having signal loss issues in Frome Somerset (BA11). All other channels seem ok so far but havent checked everything.

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Anthony's 1 post GB
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