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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.

This transmitter has no current reported problems

The BBC and Digital UK report there are no faults or engineering work on the Mendip (Somerset, England) transmitter.

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
Thursday, 19 May 2016
C
Chris.SE
sentiment_very_satisfiedPlatinum

7:55 AM
Salisbury

David: Have you noticed any degradation at all in the signal/quality for the main HD channels (BBC B mux) - BBC, ITV etc? This is on C58 from Mendip.
Sky News etc is on the Arq A (Com5) mux on C56. If you are also seeing some degradation of those HD channels, then I'd start suspecting some issues with damp/water in the aerial connections or the coax which will start affecting the higher frequency channels first.

link to this comment
Chris.SE's 4,343 posts GB flag
Chris.SE's: mapC's Freeview map terrainC's terrain plot wavesC's frequency data C's Freeview Detailed Coverage
D
David
sentiment_satisfiedBronze

10:23 AM

Thanks Chris, all HD channels have strong signal. MikeP, I have some signal attenuators which I'll try again. Thankyou.

link to this comment
David's 25 posts GB flag
T
Tim
5:25 PM

David, there is an outside chance you are seeing co-channel interference from the Huntshaw Cross transmitter, which reuses UHF channels 52 and 56, the ones you are having problems with. The transmitter is more or less behind Mendip from your location though much more distant. You may be able to confirm this by getting your equipment into a portable state and testing it from a location where Huntshaw Cross is not in the frame to see if it behaves the same. Neighbours are likely to be suffering the same issue.

link to this comment
Tim's 8 posts GB flag
Friday, 20 May 2016
A
alan swinburne
6:54 AM

This Morning (Friday 20th April) at 6:30 am:
All the PSB2 MUX (ITV) channels have suddenly disappeared from the freeview box and yet there is no planned maintenance from the Mendip transmitter page.
Anyboby else have this problem?

link to this comment
alan swinburne's 1 post GB flag
Wednesday, 25 May 2016
D
Dave
3:19 PM

Used to get Dave and Challenge (Freeview 12 and 46) very well until recently. No signal the last few days. Post code TA24 near Williton .
Not a techie, so any ideas please and anyone else experiencing this? Only the last 10 days or less. Before, it was very good.

link to this comment
Dave's 12 posts GB flag
Sunday, 29 May 2016
G
GEM
1:41 PM

I'm in Sturminster Newton and our reception on Freeview has been difficult (not available or breaking up both TV and radio) but it's usual with this weather.

link to this comment
GEM's 14 posts GB flag
Monday, 30 May 2016
M
MikeB
sentiment_very_satisfiedPlatinum

3:13 PM

GEM: We need a postcode to know what your signal should normally be like, but weather shouldn't normally be a factor in the breakup of your TV signal.

link to this comment
MikeB's 2,579 posts GB flag
Wednesday, 1 June 2016
M
Martin B
2:57 PM

I cannot receive CITV on channel 122. Retuned chan 48 Com 4 but still no CITV. Get the message No Service. All other channels fine.

Does anyone know what's going on?

link to this comment
Martin B's 6 posts GB flag
Thursday, 2 June 2016
R
Richard Cooper
sentiment_satisfiedGold

10:53 AM
Norwich

GEM: As I mentioned in my post replying to Nick Anderson, high atmospheric pressure can indeed affect digital terrestrial television (DTT OR 'Freeview') television reception and if everything such as your aerial (type & condition), aerial alignment, aerial cable (type and length) and connectors have all been checked, and you have also carried out a 'first time installation' retune recently, then you have done all you can, and you simply have to wait until the weather changes and you have low atmospheric pressure again. If you are using the Mendip transmitter, make sure you are using a group E or a wideband aerial, horizontally polarised.Also check whether there are many 4G phone masts close to your location. If there are you may need a 4G filter. You can get them free via the at800 website. Hope the info I've provided here will help you. Richard, Norwich, 2nd June 2016.

link to this comment
Richard Cooper's 471 posts GB flag
Richard's: mapR's Freeview map terrainR's terrain plot wavesR's frequency data R's Freeview Detailed Coverage
R
Richard Cooper
sentiment_satisfiedGold

11:06 AM
Norwich

Martin B: Hi Martin B. There are no faults or engineering work taking place at the Mendip transmitter at the moment and CITV is currently transmitting, "The Dawn of Morphos (Part 2), which looks very exciting! You could watch it live on the itv hub instead of getting it from Freeview. Your Freeview reception may be marred due to high atmospheric pressure, which is dominant across southern UK at present! Hope this helps, Richard, Norwich, 11:05 on Thursday 2nd June 2016.

link to this comment
Richard Cooper's 471 posts GB flag
Richard's: mapR's Freeview map terrainR's terrain plot wavesR's frequency data R's Freeview Detailed Coverage
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