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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 25/03/2024 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),

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 Drama, 21 5USA, 29 ITV2 +1, 32 5STAR, 33 5Action, 38 Channel 5 +1, 41 Legend, 42 GREAT! action, 57 Dave ja vu, 58 ITVBe +1, 59 ITV3 +1, 64 Blaze, 67 TRUE CRIME, 68 TRUE CRIME XTRA, 78 TCC, 81 Blaze +1, 83 Together TV, 89 ITV4 +1, 91 WildEarth, 209 Ketchup TV, 210 Ketchup Too, 211 YAAAS!, 267 Al Jazeera English, plus 30 others

COM5
ArqA
 H max
C33 (570.0MHz)591mDTG-8100,000W
Channel icons
11 Sky Mix, 17 Really, 19 Dave, 31 E4 Extra, 36 Sky Arts, 40 Quest Red, 43 Food Network, 47 Film4 +1, 48 Challenge, 49 4seven, 60 Drama +1, 65 That's TV 2, 70 Quest +1, 74 Yesterday +1, 75 That's 90s, 233 Sky News, plus 11 others

COM6
ArqB
 H max
C36 (594.0MHz)591mDTG-8100,000W
Channel icons
12 Quest, 25 W, 27 Yesterday, 34 GREAT! movies, 39 DMAX, 44 HGTV, 52 GREAT! romance, 56 That's TV (UK), 61 GREAT! movies extra, 63 GREAT! romance mix, 71 That’s 60s, 73 HobbyMaker, 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, 23 July 2020
B
bruce tearle
sentiment_satisfiedBronze

1:23 PM

Hi Chris

Problem solved. It was a problem with my Freeview box. After lots of playing around have got it sorted. The 'good-woman' is not happy as she now has to fins all the programs that she had planned to watch/record!!!

Thanks again

Bruce

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bruce tearle's 55 posts GB flag
C
Chris.SE
sentiment_very_satisfiedPlatinum

1:52 PM

bruce tearle:

Whoops, let's hope she finds them all! At least the problem is solved :)

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Chris.SE's 4,102 posts GB flag
Saturday, 1 August 2020
O
Old Giff
8:31 AM

New Humax recorder signal strength in Stoke Gifford Quest HD 114 is 76% but channel sometimes drops out. What signal strength should I expect. Replaced old antenna on roof with new hi strength in loft and worked fine on my old Humax until the tuner died. So is the new Humax performing properly?
Thanks Giff

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Old Giff's 1 post GB flag
C
Chris.SE
sentiment_very_satisfiedPlatinum

3:42 PM

Old Giff:

The actual signal strength reading will vary with set/PVR/device, you should be fine with 76% for COM7. What is more important is the Quality figure which should be 100% for the greater part of the time. As long as that figure isn't dropping too low there ought not to be a problem.

Right now you should be finding things fairly stable but there is some variable intermittent "tropospheric ducting" around at present - https://www.bbc.co.uk/rec….jpg affecting different areas at different times & not all channels are necessarily affected at the same time or at all. There's likely to be some about for a couple more days but could become more variable and predictions can change.

Whilst you shouldn't have any particular reception problems in most of the Stoke Gifford area if you are still having problems now, we'd need a full postcode to look at the predicted reception at your location.

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Chris.SE's 4,102 posts GB flag
Monday, 21 September 2020
B
bruce tearle
sentiment_satisfiedBronze

5:41 AM

am using a humax box, can getting nothing on my tv this morning.

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bruce tearle's 55 posts GB flag
N
Neil Chilton
8:41 AM

I have nothing, on three different receivers,
I did have for a while BBC1 SD with good quality and signal strength, but that has stopped now

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Neil Chilton's 2 posts GB flag
N
Neil Chilton
8:56 AM
Swindon

Forgot to mention post code SN26 7DE
Now BBC 1and 2 SD are back, on "C32 (562.0MHz)"
Nope, they just dropped out.
I think i'll go back to bed

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Neil Chilton's 2 posts GB flag
Neil's: mapN's Freeview map terrainN's terrain plot wavesN's frequency data N's Freeview Detailed Coverage
B
bruce tearle
sentiment_satisfiedBronze

2:03 PM

things are back to normal, guess it must have been the atmosphere!!!!!!!!!!!!

Msg appearing on Pick indicates that there is a need to retune to ch34 but when I try this I get nothing!!

Has it moved or not?

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bruce tearle's 55 posts GB flag
Tuesday, 22 September 2020
C
Chris.SE
sentiment_very_satisfiedPlatinum

12:06 AM

Bruce Tearle:

Yes it was "atmospherics" there's been a lot of "Tropospheric Ducting" around causing interference, see Effect of tropospheric ducting on Freeview | RTIS for a simplistic explanation. It may continue on and off for a day or two more.

Pick moved to LCN34 and Sky Arts has been put at LCN11, you may need to manually retune the ArqA/COM5 multiplex if you aren't seeing the change, UHF C33 at Mendip.

Neil Chilton:

Weather related issues, see comment above.
Also note that predicted reception at your location for COMs 4-6 is variable from Mendip.

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Chris.SE's 4,102 posts GB flag
C
Chris.SE
sentiment_very_satisfiedPlatinum

12:08 AM

All:

Just to add to the above, Mendip is currently listed for Planned Engineering with "Possible weak signal" !

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Chris.SE's 4,102 posts GB flag
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Please post a question, answer or commentIf you have Freeview reception problems before posting a question your must first do this Freeview reset procedure then see: Freeview reception has changed, Single frequency interference, and Freeview intermittent interference.

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