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Full Freeview on the Mendip (Somerset, England) transmitter

first published this on - UK Free TV
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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.

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 1 (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 ITV1 +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 1 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
Saturday, 8 September 2018
MikeP
sentiment_very_satisfiedPlatinum

10:32 AM

Paul Jennings:

There were some changes made at Mendip in March 2018. I receive the Freeview service from that transmitter and had to retune after the changes. Most channels were unaffected as the alterations were relatively small. Some viewers posted here and asked about the changes back in March and their problems were resolved by retuning at that time.



link to this comment
MikeP's 3,056 posts GB
Monday, 10 September 2018
C
Chris.SE
sentiment_very_satisfiedPlatinum

11:40 PM

All: A reminder of my post on Tuesday, 6 March 2018 at 3.55pm on p171 where towards the end of the post I summarised the current mux allocations and where to look for details of changes at DigitalUK.

link to this comment
Chris.SE's 3,170 posts GB
Thursday, 13 September 2018
R
Richard Greenaway
7:44 PM

have lost sky news recently from one freeview antenna was ok until a week or so ago think it on channel 33 the antenna is quite low seems to be good signal on others . Get it from Mendip

regards

link to this comment
Richard Greenaway's 2 posts GB
S
StevensOnln1
sentiment_very_satisfiedPlatinum

11:00 PM

Richard Greenaway: Are you missing any other channels such as Pick and Dave, which are on the same multiplex (COM5) as Sky News? What signal strength and quality readings do you get for UHF channel 33? Do not attempt to retune.

link to this comment
StevensOnln1's 3,397 posts GB
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.

Digital UK | 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 comment
John-Ha's 2 posts GB
Saturday, 29 September 2018
MikeP
sentiment_very_satisfiedPlatinum

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 comment
MikeP's 3,056 posts 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 comment
John-Ha's 2 posts GB
Wednesday, 3 October 2018
MikeP
sentiment_very_satisfiedPlatinum

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.



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MikeP's 3,056 posts 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 comment
keith's 1 post US
S
StevensOnln1
sentiment_very_satisfiedPlatinum

4:48 PM

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

link to this comment
StevensOnln1's 3,397 posts US
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Your comment please
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