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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

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, 9 BBC Four, 201 CBBC, 202 CBeebies, 231 BBC News, 232 BBC Parliament, 601 BBC RB 1, plus 17 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, 6 ITV 2, 13 Channel 4 +1 South ads, 14 More4, 15 Film4, 24 ITV4, 24 ITV4 +1, 28 E4, 33 ITV +1 (West), 73 Sewing Quarter,

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 Channel 5 HD, 204 CBBC HD,

COM4
SDN
 H max
C48 (690.0MHz)591mDTG-8100,000W
Channel icons
10 ITV3, 20 Drama, 21 5 USA, 26 ITV Be, 27 ITV 2 +1, 30 5STAR, 34 ITV3 +1, 37 Quest, 44 Channel 5 +1, 54 My5, 57 Paramount Network, 58 ITV Be +1, 59 ITV4 +1, 61 True Entertainment, 63 Blaze, 64 CBS Action +1, 66 CBS Reality, 70 Horror Channel, 80 Blaze +1, 83 Quest +1, 203 CITV, 211 Ketchup TV, plus 17 others

COM5
ArqA
 H max
C56 (754.0MHz)591mDTG-8100,000W
Channel icons
11 pick, 12 Dave, 17 Really, 29 E4 +1, 32 Sony Movie Ch, 38 Quest Red, 41 Food Network, 46 Challenge, 48 Movies4Men, 72 YourTV, 233 Sky News, plus 10 others

COM6
ArqB
 H max
C52 (722.0MHz)591mDTG-8100,000W
Channel icons
18 4Music, 19 Yesterday, 25 Home, 31 5Spike, 39 CBS Action, 42 Travel Channel, 47 4seven, 62 True Movies, 71 CBS Drama, 79 Dave ja vu, 81 Talking Pictures TV, 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
C33 (570.0MHz)591mDTG-672,400W
Channel icons
56 5USA +1, 67 CBS Drama, 82 Vintage TV, 84 Quest Red +1, 87 Keep It Country, 107 BBC News HD, 108 Al Jazeera Eng HD, 109 Channel 4+1 HD, 110 4seven HD, 113 RT HD, plus 1 others

com8
 H -1.6dB
C35 (586.0MHz)591mDTG-669,100W
Channel icons
55 5STAR+1, 86 More4 1, 95 Freesports, 96 Forces TV, 106 BBC Four HD, 115 BT Showcase HD (not free), 205 CBeebies HD, plus 4 others



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
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?

years1984-971997-981998-20102010-1327/3/13-2013-1731st Mar 2018-
aerial groupC/D EEEC/D EC/D EWK
600C32BBCA
C33com7D3+4
C34BBCB
C35com8SDN
C36ArqA
C37C5C5
C48SDNSDNSDNArqB
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: 4G from 30 June 2020more
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.

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, 28 September 2018
J
John-Ha
7:59 PM

I have recently lost signal strength and quality on Channel 48 (Drama, 5USA, 5Star) etc, although other multiplexes are OK. I am in a marginal area for Mendip.

http://www.digitaluk.co.uk/operations/planned_engineering_works says "Mendip: Possible weak signal for week commencing 24 Sept" but this site says "Mendip: No engineering works".

Can anyone add anything?

Secondly, there appears to be an error somewhere because this site says ITV3 (Station 10) is in the COM4/SDN multiplex on Mendip C48. When I check my ITV3 station, which is received from Mendip Main, it is definitely on Mendip C58 and reception is good unlike the Mendip C48 stations.

Where am I going wrong?

link to this
John-Ha's 2 posts GB
Saturday, 29 September 2018
MikeP
11:07 AM

John-Ha:

It is known that the channel usage data on this website is out-of-date as the owner is unavailable and has been for some months now. Only he can make the needed updates happen. Use the Digital UK Coverage Checker to find details of the channels used for the 8 multiplexes available from Mendip.

The Mendip transmitter does not have any reported faults at present (I know that because we use Mendip services ourselves in Trowbridge). The work indicated has been completed yesterday and no changes to TV transmissions were required, so you should not retune. Instead, check all your aerial connections and if there are coaxial plugs/sockets then unplug them and refit. That will clear any corrosion/oxidation that is known to cause the symptoms you describe.




link to this
MikeP's 2,350 posts Platinum Platinum GB
Tuesday, 2 October 2018
J
John-Ha
10:54 AM

Mike

Thanks. I did nothing and it fixed itself - both signal strength and quality have improved and I can receive it again.

I think that what may have happened is that Mendip was transmitting on a "reserve aerial" and my aerial sits in, or close to, a null for C48 from that aerial. As a consequence, all is OK when Mendip transmits on the main antenna, where I don't sit in a null; but I have problems when Mendip transmits on the reserve antenna.

link to this
John-Ha's 2 posts GB
Wednesday, 3 October 2018
MikeP
11:04 AM

John-Ha:

Television transmitters do not normally have a 'reserve' aerial and Arqiva do not admit that there is one at Mendip, nor any other main transmitter.

So you need to look for some other cause, such as problems with the cables and connections as previously suggested. That is known to cause the type of problems you reported, including problems with reception of just one multiplex. You might also look at what is in direct line between your aerial and the transmitter mast.



link to this
MikeP's 2,350 posts Platinum Platinum GB
Thursday, 11 October 2018
K
keith
1:02 PM Bristol

For the mendip receiver do I need an aerial position (horizontal or vertical)

link to this
keith's 1 post US
keith's: Freeview map terrain plot frequency data R&TI Service digitaluk trade DAB coverage
S
StevensOnln1
4:48 PM

keith: To receive all channels from Mendip you would need a wideband aerial mounted with horizontal polarity.

link to this
StevensOnln1's 2,039 posts Platinum Platinum US
Monday, 15 October 2018
C
Clive Austin
10:30 PM

Is anyone else experiencing 'West' programme reception issues? We have picture break-up fairly regularly on the weekend, but after the storm, we can only get Welsh versions in Clevedon...

link to this
Clive Austin's 1 post US
S
StevensOnln1
11:07 PM

Clive Austin: If the problem only started after the storm then chances are your aerial has been moved or damaged by the storm, or water is getting in to the cable somewhere. Is the aerial still attached and pointing the say way as those on neighbouring properties?

link to this
StevensOnln1's 2,039 posts Platinum Platinum US
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