Full Freeview on the Mendip (Somerset, England) transmitter

Brian Butterworth first published this on 1st May 2004 at 08:20 - UK Free TV

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51.237,-2.626 or 51°14'12"N 2°37'33"W

BA5 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.

Are there any planned engineering works or unexpected transmitter faults on the Mendip (Somerset, England) mast?

Mendip transmitter - Mendip transmitter: Possible effect on TV reception week commencing 25/11/2024 Pixelation or flickering on some or all channels

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.

Mux	H/V	Frequency	Height	Mode	Watts
PSB1 BBCA	H max	C32 (562.0MHz)	591m	DTG-	100,000W
	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, plus 17 others
PSB2 D3+4	H max	C34 (578.0MHz)	591m	DTG-	100,000W
	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, 28 ITVBe, 30 E4 +1, 35 ITV1 +1 (West), 71 That’s 60s,
PSB3 BBCB	H max	C35 (586.0MHz)	591m	DTG-	100,000W
	46 5SELECT, 101 BBC One HD West, 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, 107 BBC Three HD, 204 CBBC HD, 205 CBeebies HD, plus 1 others 66 TBN UK,
COM4 SDN	H max	C48 (690.0MHz)	591m	DTG-8	100,000W
	20 U&Drama, 21 5USA, 29 ITV2 +1, 32 5STAR, 33 5Action, 38 Channel 5 +1, 41 Legend, 42 GREAT! action, 57 U&Dave ja vu, 58 ITV3 +1, 59 ITV4 +1, 64 Blaze, 67 TRUE CRIME, 68 TRUE CRIME XTRA, 81 Blaze +1, 83 Together TV, 91 WildEarth, 93 ITVBe +1, 209 Ketchup TV, 210 Ketchup Too, 211 YAAAS!, 251 Al Jazeera English, 255 FRANCE 24 (in English), 265 Rok Sky +1, plus 29 others
COM5 ArqA	H max	C33 (570.0MHz)	591m	DTG-8	100,000W
	11 Sky Mix, 17 Really, 19 U&Dave, 31 E4 Extra, 36 Sky Arts, 40 Quest Red, 43 Food Network, 47 Film4 +1, 48 Challenge, 49 4seven, 60 U&Drama +1, 65 That's TV 2, 70 Quest +1, 74 &UYesterday +1, 76 That's TV 2 MCR, 233 Sky News, plus 13 others
COM6 ArqB	H max	C36 (594.0MHz)	591m	DTG-8	100,000W
	12 Quest, 25 U&W, 27 U&Yesterday, 34 GREAT! movies, 39 DMAX, 44 HGTV, 52 GREAT! christmas, 56 That's TV (UK), 63 GREAT! romance mix, 73 HobbyMaker, 75 That's 90s, 82 Talking Pictures TV, 84 PBS America, 235 Al Jazeera Eng, plus 18 others
LBS	H -10dB	C30 (546.0MHz)	591m	DTG-12	10,000W
	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?

BBC Points West 0.9m homes 3.4%
from Bristol BS8 2LR, 25km north (3°)
to BBC West region - 60 masts.

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?

Cheddar	Transposer	15 km E Weston-super-Mare	1674 homes
Luccombe	Active deflector	6 km w Minehead	38 homes

How will the Mendip (Somerset, England) transmission frequencies change over time?

	1984-97	1997-98	1998-2010	2010-13	2013-18	2013-17	27 Feb 2018
	C/D E	E	E	C/D E	C/D E T	W T	W T
C30							_local
C32							BBCA
C33						com7	com7
C34							D3+4
C35						com8	com8
C36							ArqB
C37		C5_waves	C5_waves
C48				SDN	SDN	SDN	SDN
C49_{tv_off}					BBCA	BBCA
C51_{tv_off}						LBS	LBS
C52_{tv_off}				ArqB	ArqB	ArqB
C54_{tv_off}	C4_waves	C4_waves	C4_waves	D3+4	D3+4	D3+4
C55_{tv_off}							com7_{tv_off}
C56_{tv_off}				ArqA	ArqA	ArqA	COM8_{tv_off}
C58_{tv_off}	BBC1_waves	BBC1_waves	BBC1_waves	BBCB	BBCB	BBCB
C61	ITV_waves	ITV_waves	ITV_waves	BBCA
C64	BBC2_waves	BBC2_waves	BBC2_waves

_{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

Local transmitter maps

Mendip Freeview Mendip DAB Mendip AM/FM Mendip TV region BBC West West

Which companies have run the Channel 3 services in the Mendip transmitter area

Jan 1958-Jul 1968	Television Wales and the West
Jul 1968-Feb 2004	Harlech Television
Feb 2004-Dec 2014	ITV plc

Feb 1983-Dec 1992	TV-am•
Jan 1993-Sep 2010	GMTV•
Sep 2010-Dec 2014	ITV 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.

Is the transmitter output the same in all directions?

MikeP

_{sentiment_very_satisfied}Platinum

8:27 PM

Hooded Oracle

Please look at my response to your post on this subject under the page.

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MikeP's 3,056 posts GB flag

M

MikeB

_{sentiment_very_satisfied}Platinum

8:32 PM

HoodedOracle: There doesn't seem to be anything wrong with the , and in fact after the power tends to go up, to the point where its often too much.

Your only 24km from the transmitter, so low signal is unlikely to be a problem. You should get something at least, even with engineering work.

I'd check the signal chain, starting from your TV and work backwards. Aerials might not suddenly stop working, but cables can, etc.

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MikeB's 2,579 posts GB flag

H

HoodedOracle
7:58 PM
Weston-super-mare

MikeP and MikeB
Thanks I have taken the time to look at all the cables and and have decided to plunge for a new aerial as it is getting tired, also by doing this I can get all the cables replaced as they too came with the house and seem rather dated too. Though my neighbours are also having issues - but it is likely because they are using boosters - they have taken the boosters out and seem to have better signal now?
I that this will resolve the issue - also the engineer may do me a favour (cash in hand) and move the sat that leads to a different room to my lounge so I can utilise the twin tuner on it... *here's hoping*
Once I have all this done - I will let you know if I have any further probs... (hoping not).
But thanks for your.

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HoodedOracle's 8 posts GB flag

HoodedOracle's: H's Freeview map H's terrain plot H's frequency data H's Freeview Detailed Coverage

H

HoodedOracle
8:17 PM

Would you adam and eve it! Today the is now good again. I have moved nothing, changed noting on my cables - but both the box and the Vision box are working?? Still going to have the cables looked at just in case it is a loose wire o/s from the - especially as I have booked him now.

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HoodedOracle's 8 posts GB flag

P

paul
4:46 PM

gems tv and rocks an co have on anyone else have the same problem?

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paul's 1 post GB flag

H

HoodedOracle
8:04 PM

I spoke too soon - all gone again!
Let's that the new being fitted tomorrow will rectify our issues.

I wonder about all the mobile transmitters around our house (some quite close) and whether they are interfering with the signal?

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HoodedOracle's 8 posts GB flag

M

MikeB

_{sentiment_very_satisfied}Platinum

8:17 PM

HoodedOracle: Blaming 3/4G is a bit of a favourite, although almost certain unfairly.

It sounds like you've got old coax which sometimes works, and sometimes doesn't. Let us know if things improve.

BTW - I just noticed on one of your previous posts that 'Though my neighbours are also having issues - but it is likely because they are using boosters - they have taken the boosters out and seem to have better signal now? '. Yep! Your 25km from the , which is fairly close when you consider how power levels have gone up.

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MikeB's 2,579 posts GB flag

A

Andrew
9:01 PM

Hello, We seem to have lost loads of tv , including Dave, Dave +1 and E4+1. It says when scanning for channels there is only 60 available, but ive also noticed that we have lost the ability to pick up the correct areas news program. we now get spotlight wheras it should be points
is there any advice??
We live in BS232NG area if this helps

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Andrew's 4 posts GB flag

G

Gareth Rhys
2:10 PM

worse since Apr retune. Also had for main TV (dual tuner).
We have a frequently poor signal on BBCA mux ch49 since it moved freq., but also on all the above (Ch52, Ch54, Ch56). Location top of hills GL6 8.
We have a Labgear 16.5dB high- (future proof for change) aerial installed, and then dual screened /F-Connectors to internal distribution amp, feeding dual screened cable to multiple televisions 3xPanasonic / 1xSony all seeing the same quality level issue (drops and then rises again) and breakup. The signal strength is middle and drops occasionally, with a concurrent drop in quality. It is poorer still with windy/wet weather. Have considered buying a 4G filter, but no 4G here yet (only in Bristol?).

Got better before analogy switch off when I removed the booster from circuit.
Have tried full reset/retune of TV's.
Have tried replacing dist amp with simple splitter
What next ??

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Gareth Rhys's 1 post GB flag

Andrew

_{sentiment_satisfied}Bronze

6:19 AM
Cinderford

Gareth: have you tried connecting the lead directly to one of the tv's (with an to f coupler) and seeing what the strength and are like then? i'm not a fan of any labgear product really but have you ruled out the aerial?

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Andrew's 57 posts GB flag

Andrew's: A's Freeview map A's terrain plot A's frequency data A's Freeview Detailed Coverage

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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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