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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 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
Friday, 24 March 2017
S
StevensOnln1
sentiment_very_satisfiedPlatinum

5:11 PM

Iain Davies: There has been no announcement yet of any date for any channels to switch to HD only output, or for any further multiplexes to switch to broadcasting in DVB-T2. Although the BBC have said they intend to switch to HD only broadcasting in the future.

link to this comment
StevensOnln1's 3,376 posts GB
Saturday, 25 March 2017
Transmitter engineering
sentiment_very_satisfiedOwner

4:32 AM

MENDIP transmitter - DAB: BBC National DAB Radio Weak Signal from 11:07 yesterday to 11:25 yesterday. [BBC]

link to this comment
Transmitter engineering's 138,029 posts xx
Sunday, 26 March 2017
Transmitter engineering
sentiment_very_satisfiedOwner

5:31 AM

MENDIP transmitter - DAB: BBC National DAB Radio Weak Signal from 11:07 on 24 Mar to 11:25 on 24 Mar. [BBC]

link to this comment
Transmitter engineering's 138,029 posts xx
D
Dave
sentiment_satisfiedBronze

8:28 PM

My reception in Bath (BA1) has been terrible for the last year or so. Quality interrmittent, some channels I cant receive at all some days and hardly ever able to get HD channels. I'm high up, have had 2 ariel firms in, have new high gain ariel and have replaced ariel distribution amp but to little avail. Have a number of different makes of high end TVs and PVRs - Humax seems to be the worst! When engineers have measured the signal strength it seems to be good but they do warn that there's a fairly narrow acceptability band for digital and too strong a signal can be as bad as too little!

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Dave's 25 posts US
MikeP
sentiment_very_satisfiedPlatinum

8:57 PM

Dave:

Would you please give us both a full post code and the signal strength readings for several channels. Then we may get some ideas on how to proceed and p[otentially resolve the issues.


link to this comment
MikeP's 3,056 posts GB
Sunday, 14 May 2017
Transmitter engineering
sentiment_very_satisfiedOwner

5:34 PM

MENDIP transmitter - DAB: BBC National DAB Radio Off Air from 14:40 today to 14:45 today. [BBC]

link to this comment
Transmitter engineering's 138,029 posts xx
Monday, 15 May 2017
Transmitter engineering
sentiment_very_satisfiedOwner

5:32 AM

MENDIP transmitter - DAB: BBC National DAB Radio Off Air from 14:40 yesterday to 14:45 yesterday. [BBC]

link to this comment
Transmitter engineering's 138,029 posts xx
Tuesday, 16 May 2017
Transmitter engineering
sentiment_very_satisfiedOwner

5:33 AM

MENDIP transmitter - DAB: BBC National DAB Radio Off Air from 14:40 on 14 May to 14:45 on 14 May. [BBC]

link to this comment
Transmitter engineering's 138,029 posts xx
J
Jane crabb
11:35 AM
Bridport

Charles Stuart: hi ive been on google for hours trying to find which analogue number i need for my magic eye.....it worked fine on C48 then all off a sudden the picture is snowy here are the things i have tryed

Been up and down the stairs trying the analogue different numbers
Retuning the tv with magic eye
Tryed manual tune and fine tune
Checked all wires
Bought a new magic eye

I have a outside aerial with a booster box all lights are on green
Turned everything off to let it reboot
Any help would be appreciated

link to this comment
Jane crabb's 5 posts GB
S
StevensOnln1
sentiment_very_satisfiedPlatinum

2:31 PM

Jane crabb: Unless you've changed the RF output channel on your Sky box, it will still be using C48, however as C48 is used by Mendip for the SDN multiplex (which is predicted to have variable reception at your location) it would be a good idea to change it (C38 is usually a good choice as it isn't used by any UK transmitter). You'll then need to retune the analogue channel on your second TV to match the one set on the Sky box. See the link below for a guide to change the RF output channel on your Sky box.

How do I change the RF output channel on a Sky Digibox?

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StevensOnln1's 3,376 posts GB
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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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