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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

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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.



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.

MuxH/VFrequencyHeightModeWatts
PSB1
BBCA
 H max
C49 (698.0MHz)591mDTG-3100,000W
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, 601 BBC Red Button 1, plus 13 others

PSB2
D3+4
 H max
C54 (738.0MHz)591mDTG-3100,000W
Channel icons
3 ITV (West), 4 Channel 4 South ads, 5 Channel 5 Part Network ads, 6 ITV2, 13 Channel 4 +1 South ads, 14 More4, 15 Film4, 28 E4, 33 ITV +1 (West),

PSB3
BBCB
 H max
C58 (770.0MHz)591mDTG-6100,000W
Channel icons
45 Film4 +1, 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, 602 BBC Red Button 2, 603 BBC Red Button 3, plus 1 others

COM4
SDN
 H max
C48 (690.0MHz)591mDTG-8100,000W
Channel icons
10 ITV3, 20 Drama, 21 5 USA, 26 ITVBe, 27 ITV2 +1, 30 5*, 34 ITV3 +1, 37 Quest, 44 Channel 5 +1, 55 Channel 5 +24, 61 True Entertainment, 62 ITV4 +1, 66 CBS Reality, 72 ITVBe+1, 122 CITV, 242 Vintage TV, plus 25 others

COM5
ArqA
 H max
C56 (754.0MHz)591mDTG-8100,000W
Channel icons
11 pick, 12 Dave, 17 Really, 29 E4 +1, 32 Movie Mix, 41 Food Network, 46 Challenge, 48 Movies4Men, 68 truTV, 69 truTV +1, 126 Tiny Pop, 132 Sky News, plus 18 others

COM6
ArqB
 H max
C52 (722.0MHz)591mDTG-8100,000W
Channel icons
 BT Sport 1 (not free), 18 4Music, 19 Yesterday, 24 ITV4, 25 Dave ja vu, 31 Spike, 38 Quest +1, 42 Travel Channel, 47 4seven, 59 BT Showcase (not free), 64 CBS Action, 70 Horror Channel, 74 VIVA, 133 Al Jazeera English, 135 RT HD, plus 18 others

LBS
 H -10dB
C51 (714.0MHz)591mDTG-1210,000W
Channel icons
from 22nd September 2014: 8 Made in Bristol, 125 Pop, plus 1 others

com7
 H -1.4dB
C33 (570.0MHz)591mDTG-672,400W
Channel icons
63 Community Channel, 71 Motors TV, 106 BBC Four HD, 107 BBC News HD, 108 Al Jazeera Eng HD, 109 Channel 4+1 HD, 110 4seven HD, 124 CBeebies HD, 134 Al Jazeera Arabic, plus 4 others

com8
 H -7.6dB
C35 (586.0MHz)591mDTG-617,500W
Channel icons
starts sometime during 2014/5: plus 2 others



DTG-3 64QAM 8K 2/324.1Mb/s DVB-T MPEG2
DTG-6 256QAM 32KE 2/340.2Mb/s DVB-T2 MPEG4
DTG-8 64QAM 8K 3/427.1Mb/s DVB-T MPEG2
DTG-12 QSPK 8K 3/48.0Mb/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
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 more
green background for transmission frequencies
lilac background for power levels in watts
800MHz band: 4G mobile started in 2013
700MHz band: possible 4G in 2019 more
600MHz 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.
Click/touch here to read How do the old analogue and currrent digital signal levels compare?Analogue 1-4 500kWAnalogue 5
Click/touch here to read Other mapsMendip Freeview, Mendip DAB, Mendip AM/FM, Mendip TV region, BBC West, West, DAB in Somer
Click/touch here to read Which companies have run the Channel 3 services in the Mendip transmitter areaJan 1958-Jul 1968Te
Click/touch here to read Is the transmitter output the same in all directions? Internet Explorer 9+, Firefox, Opera, Chrom

Comments
Saturday, 11 July 2015
B
Bizman
2:28 PM

Ch4 +1 HD should be LCN109 replacing the Community Channel.

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Bizman's 1 post xx
Thursday, 23 July 2015
A
Anthony
8:29 PM Weston-super-mare

BS22 8QF
Aerial on roof.

I seem to have a problem with Channel 33: All the HD channels break up and are unwatchable.

I don't know what to do first to work out what the problem is.

Anyone know of a aerial installer who knows what they are doing and won't rip you off?

Thanks

link to this
Anthony's 4 posts xx
Anthony's: Freeview map terrain plot frequency data R&TI Service digitaluk trade DAB coverage
Saturday, 25 July 2015
A
Anthony
1:34 PM Weston-super-mare

It seems to be intermittent.

BBC News channel seems to break up quite often, but I recorded 'Film review' and it recorded without a single problem, but that was for only 15 minutes though?

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Anthony's 4 posts xx
Anthony's: Freeview map terrain plot frequency data R&TI Service digitaluk trade DAB coverage
Dave Lindsay
2:23 PM

Anthony: Should you have two aerials - one on Mendip and one on Wenvoe - and these combine into one downlead, then this may be the cause of your issue receiving PSB1 on C49, and indeed any channel below C51 from Mendip.

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Dave Lindsay's 5,683 posts Platinum Platinum xx
A
Anthony
8:12 PM Weston-super-mare

Dave Lindsay:

Thanks for the reply.
Can you recommend a professional aerial installer in the Weston Super Mare area (I'm not sure if you are from the Weston super mare area?)?

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Anthony's 4 posts xx
Anthony's: Freeview map terrain plot frequency data R&TI Service digitaluk trade DAB coverage
Dave Lindsay
9:13 PM

Anthony: Unfortunately not. I'm not an aerial installer myself and I'm a long way away in Yorkshire.

If you have two aerials, wired as described in my previous posting, then you will probably be able to turn the Wenvoe-facing aerial to Mendip, this obviously forfeiting reception of Wenvoe. The other alternative is to replace the Mendip aerial with a log periodic such as the Log 36 mentioned here (this, I believe, being a 36 element log made by Vision Products):

http://www.aerialsandtv.com/mendiptx.html#txt_1027

http://www.vision-products.co.uk/catalogue/product/V10-36L

A terrain plot shows you would have a clear path were it not for high ground at about 3.5 to 4 miles out and 6 to 7.5 miles out:

http://www.megalithia.com/elect/terrain.php?Make=1&ngr=ST345615&bht=10&ngr1=ST564488&daod=591&dname=Mendip&dht=0&go=go

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Dave Lindsay's 5,683 posts Platinum Platinum xx
A
Anthony
10:43 PM Weston-super-mare

Thanks for the detailed reply.

I only have one aerial on my roof facing towards the Mendip transmitter.

You know a lot more about aerials than I do, I don't understand what type of aerial I should have or anything else for that matter, so thanks again for your help.

So you think from the link for the aerial you mention that it would be a good idea to get this aerial?

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Anthony's 4 posts xx
Anthony's: Freeview map terrain plot frequency data R&TI Service digitaluk trade DAB coverage
Sunday, 26 July 2015
D
David Pickering
6:16 PM

The only way you can be sure what Aerial is required, if infact one does need replacing is for a aerial rigger to various test procedures with his or her meter.
Far as replacment Aerial there is no one including myself that could give you a competent answer sat round a desk without getting on your roof with a aerial and meter to deside what is or would be required.
However if you dont mind a over size aerial to play safe make sure your chimney lashing mounts and mast are adequate to take the load, after all signal can be reduced in various ways , its just big Aerials look horrible and if not needed its amature and not practical.
If you want my advise I would be looking at your coaxial downlead because quite often substandard or old coaxial cable can deteriorate and often not handling the lower frequencys as well as further up the scale , although adequate signal strenth often remains it is the errors within the bits that give the problems measured as bit error rate. (BER) which should be the first thing the rigger does soon as he/she walks through your front door. Firstly before calling anyone out check the fly lead running from wall socket to TV , if its one of those molded end type thin leads replace with better quality after that without a meter your fairly knackered.
All the best
Dave

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David Pickering's 39 posts Bronze Bronze xx
Monday, 27 July 2015
A
Anthony
8:22 PM Weston-super-mare

David: Thanks for the details.
I'll look into your suggestions.

link to this
Anthony's 4 posts xx
Anthony's: Freeview map terrain plot frequency data R&TI Service digitaluk trade DAB coverage
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Your comment please
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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