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Full Freeview on the Mendip (Somerset, England) transmitter

First published
by
on 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

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.

loading...map is loading, please wait...

The symbol shows the location of the Mendip (Somerset, England) transmitter which serves 720,000 homes.

Other mapstxfvMendip FreeviewtxdabMendip DABtxregionMendip TV regiontx1BBC West
tx3WesttxdabxxDAB in SomersettxradioxxAM/FM in Somerset

Is the transmitter output the same in all directions?

Internet Explorer 9+, Firefox, Opera, Chrome, and Safari required

What do the colours on the map mean?

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.


List by multiplex|List by channel number|List by channel name|See terrain plot

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.

MuxAerial positionFrequencyHeightModeWatts
PSB1
BBCA
 horizontal max
C49 (698.0MHz)591m64QAM 8K 2/3
24.1Mb/s DVB-T MPEG2
100,000W
Channel icons
1 BBC One West, 2 BBC Two England, 7 BBC Three, 9 BBC Four, 120 CBBC, 121 CBeebies, 130 BBC News, 131 BBC Parliament, 301 BBC Red Button 1, plus 13 others

PSB2
D3+4
 horizontal max
C54 (738.0MHz)591m64QAM 8K 2/3
24.1Mb/s DVB-T MPEG2
100,000W
Channel icons
3 ITV (West), 4 Channel 4 South ads, 5 Channel 5 Part Network ads, 6 ITV 2, 13 Channel 4 +1 South ads, 14 More 4, 15 Film 4, 28 E4, 33 ITV +1 (West),

PSB3
BBCB
 horizontal max
C58 (770.0MHz)591m256QAM 32KE 2/3
40.2Mb/s DVB-T2 MPEG4
100,000W
Channel icons
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 BBC Three HD, 123 CBBC HD, plus 1 others

COM4
SDN
 horizontal max
C48 (690.0MHz)591m64QAM 8K 3/4
27.1Mb/s DVB-T MPEG2
100,000W
Channel icons
10 ITV 3, 20 Drama, 25 Dave ja vu, 26 ITV Be, 27 ITV 2 +1, 30 5*, 31 5USA, 34 ITV 3 +1, 37 Quest, 44 Channel 5 +1, 55 Channel 5 +24, 61 True Entertainment, 62 ITV 4 +1, 66 CBS Reality, 122 CITV, plus 21 others

COM5
ArqA
 horizontal max
C56 (754.0MHz)591m64QAM 8K 3/4
27.1Mb/s DVB-T MPEG2
100,000W
Channel icons
 BBC Red Button 2, 11 pick, 12 Dave, 17 Really, 29 E4 +1, 32 Movie Mix, 38 Quest +1, 41 Food Network, 42 Travel Channel, 46 Challenge, 48 Movies4Men, 63 Community Channel, 68 truTV, 69 truTV +1, 126 Pop +1, 132 Sky News, 242 Vintage TV, plus 11 others

COM6
ArqB
 horizontal max
C52 (722.0MHz)591m64QAM 8K 3/4
27.1Mb/s DVB-T MPEG2
100,000W
Channel icons
18 4Music, 19 Yesterday, 21 VIVA, 24 ITV 4, 45 Film 4 +1, 47 4seven, 58 BT Sport 1 (not free), 59 BT Sport 2 (not free), 70 CBS Action, 133 Al Jazeera English, 135 RT English , plus 21 others

LBS
 horizontal -10dB
C51 (714.0MHz)591mQSPK 8K 3/4
8.0Mb/s DVB-T MPEG2
10,000W
Channel icons
from 22nd September 2014: 8 Made in Bristol, 67 Chart Show TV, 125 Pop, plus 1 others

com7
 horizontal -1.4dB
C33 (570.0MHz)591m256QAM 32KE 2/3
40.2Mb/s DVB-T2 MPEG4
72,400W
Channel icons
71 Motors TV, 106 BBC Four HD, 107 BBC News HD, 108 Al Jazeera HD, 109 Community Channel HD, 110 Channel 4+1 HD, 111 4seven HD, 124 CBeebies HD, 134 Al Jazeera Arabic, plus 1 others

com8
 horizontal -7.6dB
C35 (586.0MHz)591m256QAM 32KE 2/3
40.2Mb/s DVB-T2 MPEG4
17,500W
Channel icons
starts sometime during 2014:



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
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
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?

years1984-971997-981998-20102010-1327/3/13-2013-182019-
aerial groupC/D EEEC/D EC/D EWK
C22SDN
C25ArqA
C28ArqB
600C33com7
C35com8
C37C5C5
C40BBCB
C43D3+4
C46BBCA
C48SDNSDNSDN
700C49 BBCABBCA
C51LBS
C52ArqBArqBArqB
C54C4C4C4D3+4D3+4D3+4
C55+2
C56+CArqAArqAArqA
C58BBC1BBC1BBC1BBCBBBCBBBCB
C59+1
800C61ITVITVITVBBCA
C62+A
C64BBC2BBC2BBC2
C65+B
C67D

orange background for multiplexes names moregreen background for transmission frequencieslilac background for power levels in watts800MHz band: 4G mobile to start in 2013700MHz band: possible 4G in 2019 more600MHz band: new or moved digital TV services more
Notes: + and - denote 166kHz offset; aerial group are shown as A B C/D E K W
Italics for analogue, digital switchover was Wednesdays 24th March and 7th April 2010.

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(-14.6dB) 17.5kW
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.



Your comments: most recent posts are at the bottom

firstFirst comments prevEarlier comments  ◊ 

Your comments are always welcome. Please use the form below to add your thoughts or questions to this page. We will get back to you as soon as we can.

D
David Newton
Monday 29 September 2014 5:49PM

jb38 - thanks..

Ok, I've no idea how old the aerial is. It is obviously 'old fashioned' looking compared to others nearby.

Sorry, I can't get easy access to the attic to check for any other components,
without moving wardrobes.

I can confirm 124 / 134 or 64 are absent from the EPG of The HD devices I've just checked.

Would it be any use for test purposes to try and find a mains powered set top aerial
stored in a box somewhere in the house.
Or would it be too old to function with HD channels ?

cheers.

J
jb38
Monday 29 September 2014 7:16PM

David Newton: Aerials will receive anything within the range of frequencies they are designed to cover irrespective of whatever the transmission mode might be, and so if you have an old set top aerial of the powered variety kicking about it could be used for a "manual tune" test of the type described in a previous reply.

That said, I wouldn't put too much reliance on the outcome of the test, as set top aerials even of the powered variety, might not detect anything in your area when installed at only a few feet above ground level.

Of course, should you manage to find the aerial, it goes without saying that you would first of all try it out on the channels that's known to be receivable on the main aerial, as the outcome of that test would at least give you an idea of whether or not you are liable to be wasting your time using an aerial of that type for tests.

By the way, the reason for emphasising the "manual tune without pressing scan or search" procedure, is simply because that this procedure effectively uses the receivers tuner as a form of signal meter free from threshold cut off levels, meaning that extremely low level signals will still be shown on the strength bar even although the strength of anything indicated might well be under a level that's capable of resolving a picture, plus the quality will be zero. But though, it doesn't really matter about this, as you are only interested in knowing if any RF signals exist from Mux33.

I would also like to say, that even although I have referred to issues concerning the sensitivity of tuner used in your 2000t, the Humax is still the best device to use for tests of this sort, always remembering to select DVB-T2 for HD signals.

Pity you are unable to access the loft, but have a look up at your aerial just to make sure the coax coming down from same is not seen to be passing through any small boxes strapped to the mast, or brickwork.


jb38's 6,028 posts
Platinum Platinum GB
M
Mike
Friday 3 October 2014 3:41PM Poole

For the past 10 days I have been having considerable interference on most freeview channels.Aerial firm insisted it was 4G interference . Filters supplied byat800 have made no difference.The main com causing problem is Com5.Don't know if high pressure is the cause but have not had this much on Mendip before.Post code BH15 3RJ.{or whether it is connected to dual aerial system I use]

Dave Lindsay
Friday 3 October 2014 4:40PM

Mike: If you've got an aerial amplifier then any filter will need to go before it.

M
Mal
Sunday 5 October 2014 12:57PM

Com5 is at 754MHz

There is the N+9(72MHz) problem with can tuners that have IF frequency.

754 + 72 = 826MHz which would put in the 4Gs duplex gap (821 - 832).

It seems that the interference shouldn't be 4G.

Transmitter engineering
Wednesday 8 October 2014 7:31PM

MENDIP transmitter - Freeview: HD Digital TV Off Air from 18:33 today to 18:33 today. [BBC]

Transmitter engineering
Thursday 9 October 2014 4:32AM

MENDIP transmitter - Freeview: HD Digital TV Off Air from 18:33 yesterday to 18:33 yesterday. [BBC]

Transmitter engineering
Friday 10 October 2014 4:31AM

MENDIP transmitter - Freeview: HD Digital TV Off Air from 18:33 on 08 Oct to 18:33 on 08 Oct. [BBC]

J
Jeff
Tuesday 21 October 2014 10:58PM

Anyone know of any problems affecting COM7 (BBC4 HD, etc)? Over the past few days it's been very intermittent, sometimes with no signal at all (even through a booster). As it's now listed above at 72 400w (up from 10000) there should be no reception problems. No problems are reported at Mendip. Any information?

updates
Automatic update every 1 minute



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.

If you have no satellite signal, see Sky Digibox says 'No Signal' or 'Technical fault'

If you have other problems, please provide a full (not partial) postcode (or preferably enter it in box at the top right) and indicate where if aerial is on the roof, in the loft or elsewhere.

UK Free TV is here to help people. If you are rude or disrespectful all of your posts will be deleted and you will be banned.








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Briantist: http://t.co/WngshJiV1c Fɑirheɑd indicates support for BBC3 online move News Broadcast BBC Trust chairman Rona Fairhead has indi
Briantist: http://t.co/I7uNKBQfA9 Arιel Rona Fairhead has not gone native Fairhead also believed the business was being run more efficientl
Briantist: http://t.co/8y10gIb1Ng BBС Trust chair appears to back BBC3 TV closure Media theguardian com Her fellow trustee David Liddiment
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Briantist: http://t.co/Hss6Q28JYo Article Тhe postponement concluded temporarily at least a long period of impassioned debate from
Briantist: http://t.co/uViGCia4vI BBC DAB Phase 4 Help Receiving TV and Radio This phase of national DAB expansion is expected to b
Briantist: http://t.co/DBWZNukll4 Arιel Fran Unsworth to lead World Service She will also continue to be deputy director of news a
Briantist: Dearest, beloved @guardian why have you made the #android app keep reseting the comments to the top. So very hard to read on a treadmill.
Briantist: http://t.co/Hss6Q28JYo Artιcle The postponement concluded temporarily at least a long period of impassioned debate from
Briantist: http://t.co/uViGCia4vI BBС DAB Phase 4 Help Receiving TV and Radio This phase of national DAB expansion is expected to

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