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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-100,000W
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-100,000W
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-100,000W
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
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 14 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 9 others

COM6
ArqB
 H max
C36 (594.0MHz)591mDTG-8100,000W
Channel icons
12 Quest, 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 Al Jazeera Eng, plus 19 others

LBS
 H -10dB
C30 (546.0MHz)591mDTG-1210,000W
Channel icons
from 22nd September 2014: 7 Made in Bristol,

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, 5 April 2013
Mike
6:35 PM
Worcester

jb38: Many thanks for your suggestions. You are so right about seasonal variations. Some people near-by get a better signal from Ridge Hill or even Malvern. We are right down at sea level too. So the diagnosis is leading to low signal strength combined with a difficult to reset tv, that now has a less than adequate signal.

Thanks for your help. Mike

link to this comment
Mike's 8 posts GB
C
chloe
7:16 PM

Still no BBC, will we ever get it back???

link to this comment
chloe's 7 posts GB
Michael Perry
sentiment_very_satisfiedPlatinum

8:49 PM

Hi Chloe
What have you tried and what equipment are you using? Plus what area?
The transmitter at Mendip is not faulty and is radiating a proper full strength set of programmes in the BBCA multiplex (thats all the BBC TV and radio services apart from the HD ones) and all the others as well.
So we need to help you find out why your equipment is not showing the programmes, hence the request about equipment, location, etc.

link to this comment
Michael Perry's 3,056 posts GB
C
chloe
9:50 PM

We have a panasonic tv which we have reset to factory setting almost on a daily basis to try and gain a signal, we have tried manually retuning channels 48 & 49 both showing nearly no signal or quality, we have a single aerial on our roof which was only installed a few years ago. We live in Taunton and had no problems before the 27th.

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

11:18 PM

Mike Perry: Although the Philex signal meter referred to in the link is a well designed little device than can under certain conditions serve a useful purpose, but the main problem with any of these devices is that they are incapable of measuring the most important aspect of any digital signal, that of its quality, and with this deficiency being something that can be a real impediment if the device is being used in a somewhat iffy reception area.

The reason for this being, that these type of devices work in a similar fashion to that of the low cost satellite types which are in effect not much more than an amplified RF sniffer device but fitted with a band pass filter, the difference when using satellite types is that although they also only give indications of strength its not just so important because the quality associated with a peaked sat signal is never that far away (if at all) from the strength when checked on a proper meter, or alternatively the sat boxes signal check screen, this simply being due to the fact that sat reception does not suffer from near the same level of variables that can exist with a DTT signal when being received in non line of sight situations.

This lack of a DTT quality indication can create a situation where a person attempting to align an aerial can possibly be pleased with themselves at witnessing a 70dB signal being indicated on the meter, but unknown to them with that level only being accompanied with a very low quality to the extent that any subsequent scan carried out might not result in a workable (or any) signal being received, this I am sure causing a great deal of frustration to the person attempting to align the aerial and who no doubt will be mystified by this. That said though, if they carry out a manual tune (equipment allowing) mux check this problem will soon be revealed if the TV or box used is capable of displaying a signals quality as well as the usual strength.

By the way, the reason that none of these low cost devices can differentiate between muxes is simply because that for any device to be capable of doing that requires it to be fitted with a tuner / decoder similar to that used in a Freeview receiver, although by the device being designed for accurate signal measuring purposes it has to be of a somewhat superior circuitry as far as stability is concerned, and with a price tag to match.




link to this comment
jb38's 7,179 posts GB
Saturday, 6 April 2013
R
Rob
11:24 AM

Thanks for the suggestions! Tried all options re my tv. However - as every flat in my block without a sky dish, local house, the local pub and the hotel down the road has also lost every BBC channel - i'd suggest the problem lies somewhere outside of my 2 month old Toshiba!

But having contacted digital Uk several times via email and spending a couple of hours on the phone to them the response has been exactly the same - there's no fault with the signal!

link to this comment
Rob's 3 posts GB
R
Rob
11:27 AM

Oh and to Michael Perry - i'm in Swindon. But was in a Bridgwater hotel most of last week - and guess what! They've lost all BBC channels too!

link to this comment
Rob's 3 posts GB
Dave Lindsay
sentiment_very_satisfiedPlatinum

12:03 PM

Rob: Communal aerial systems may need adjustment to work with the new channel. This could, perhaps, explain why a hotel may have lost access to BBC services.

link to this comment
Dave Lindsay's 5,724 posts GB
M
mwhite
12:04 PM

Now over a week without the BBC. Watched Doctor Who on the computer last Saturday, other than that what exactly is the license fee for????


link to this comment
mwhite's 2 posts GB
G
Geoff
12:19 PM

Since digital signal switch over, get more picture disturbance, when we pay television licence fees we should receive signals that avoid this

link to this comment
Geoff's 1 post GB
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