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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.

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-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
C30 (546.0MHz)591mDTG-1210,000W
Channel icons
from 22nd September 2014: 7 Made in Bristol,

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, 16 December 2011
R
Rod Roberts
5:40 PM

Postcode SN126JE

Its not only freeview i have it can be any channel i get interference sometimes i lose the channel and the no signal sign comes up,i have retuned my tv and Humax box i do not have Sky,would this help if i had Sky installed.

link to this comment
Rod Roberts's 5 posts GB
Monday, 19 December 2011
J
JimF
sentiment_satisfiedSilver

7:53 PM

Rod Roberts: Your postcode should get a good signal from Mendip, but you're very nearly in line with the Westwood relay transmitter (Bradford on Avon).
Have you tried a manual tune for the Mendip channels rather than an autotune (which might pick up Westwood)?

link to this comment
JimF's 141 posts GB
Dave Lindsay
sentiment_very_satisfiedPlatinum

8:05 PM

Rod Roberts: Ditto JimF's comments. I would manually tune in your case.

Alternatively, run the scan with the aerial unplugged and plug it in when it gets to 61%.

If, once you've done this, ITV3 is missing, then manually tune to Ch48 and this will add it and associated channels.

If Yesterday is missing, tune to Ch52. If ITV1 is missing, tune to Ch54.

link to this comment
Dave Lindsay's 5,724 posts GB
Thursday, 22 December 2011
B
bruce
sentiment_satisfiedBronze

1:11 PM
Yeovil

My Humax freeview box failed to function again, causing my wife considerable stress which inn turn gave me gbh of the ear. Problem has been solved by a software upgrade issued by Humax. The reason for the problem [according to Humax] is 'There was a change in the broadcast signals that we werent aware of which has now been rectified by this update.' My question is who is responsible for the changes and why are they occuring. This is the 2nd time I have had this problem in recent weeks

link to this comment
bruce's 45 posts GB
Tuesday, 27 December 2011
P
Pogle
4:30 PM

I'm just back from Somerset where the BBC channels on C61 were very unreliable, stuttering and sometimes cutting out altogether. The other channels on C54 and C48 were mostly fine. The signal strength was a constant 70% or more on all but Quality fluctuated wildly on C61, often falling from 100% to 40% and sometimes lower while staying constant on the other channels.

Why would different channels, apparently with the same power rating behave so differently? Is there anything to be done without replacing the aerial. Maybe a signal booster?

link to this comment
Pogle's 3 posts GB
Wednesday, 28 December 2011
B
bruce
sentiment_satisfiedBronze

1:19 PM
Yeovil

The Humax box has stopped working yet again. If this is for the same reason as given before [see my entry for 22nd December], just what is happening to digital transmissions?

link to this comment
bruce's 45 posts GB
Thursday, 29 December 2011
B
bruce
sentiment_satisfiedBronze

6:15 PM
Yeovil

My Humax box is once again working as expected following the s/w upgrade. The reason for the need to upgrade is:-

'We believe that this problem is being caused the broadcasters changing the way that they send out the signals. The unit should now work fine.'

How much more disruption can we expect before digital switch-over is complete?

Are any other freeview boxes experiencing similar issues; feedback would be appreciated!!

link to this comment
bruce's 45 posts GB
D
DENNIS MARRABLE
7:41 PM
Street

loft aerial fitted serving 46 apartments through an amplifier.no channel reception problems for two years until now.cannot recieve itv3,itv4,chan.5.on freq54.have retuned.the apartments have a door camera system fitted which uses an analogue signal which is signal connected to the input side of the digital amplifier serving all the t.v sets in the apartments.could this be the problem.please help if you can



link to this comment
DENNIS MARRABLE's 1 post GB
J
jb38
sentiment_very_satisfiedPlatinum

8:34 PM

bruce: Just purely out of interest, what model of Humax box are you referring to? as these are amongst the best boxes around in the technical sense and so I am rather intrigued as regards to the model that is seemingly causing you so much problems.

I also noted that you predicted as having excellent reception from Mendip on the main PSB muxes, and although the predictor indicates the same on all six muxes I feel that ArqA and ArqB (Ch67 & 52 respectively) could be a bit glitchy side as they are on much lower power until the end of next March.

link to this comment
jb38's 7,179 posts GB
J
jb38
sentiment_very_satisfiedPlatinum

9:34 PM

DENNIS MARRABLE: It could well be! if the analogue signal used by the door camera system is going through the same distribution amplifier used to feed the TV's "if" its tuned to either the same, or very near to Ch54 from Mendip.

The only positive way of verifying (or not) if this is the problem being to temporarily pull its connection to the amplifier out, "not" switching the amp off or the TV's will obviously be affected.

If this proves to be the problem then the cameras analogue signal will require to be tuned elsewhere, the difficulty being that you have to watch you don't clash with one of the other five multiplex channels used by Mendip.

If the cameras modulator has a channel indicator set it to anything under Ch45.



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jb38's 7,179 posts GB
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