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 02/10/2023 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),
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 Drama, 21 5USA, 29 ITV2 +1, 32 5STAR, 33 5Action, 38 Channel 5 +1, 41 Legend, 42 Great! Movies Action, 57 Dave ja vu, 58 ITVBe +1, 59 ITV3 +1, 64 Blaze, 67 CBS Reality, 68 RealityXtra, 78 TCC, 81 Blaze +1, 89 ITV4 +1, 91 WildEarth, 209 Ketchup TV, 210 Ketchup Too, 211 YAAAS!, 267 Al Jazeera English, plus 35 others
COM5 ArqA	H max	C33 (570.0MHz)	591m	DTG-8	100,000W
	Smithsonian Channel, 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, 60 Drama +1, 65 That's 60s, 70 Quest +1, 74 Yesterday +1, 75 That's 80s, 233 Sky News, plus 11 others
COM6 ArqB	H max	C36 (594.0MHz)	591m	DTG-8	100,000W
	Quest Red +1, Classic Hits, 12 Quest, 25 W, 27 Yesterday, 34 GREAT! movies, 39 DMAX, 44 HGTV, 52 Great! Movies Christmas, 56 That's TV (UK), 61 GREAT! movies +1, 63 Great! Movies Christmas 1, 71 That’s 60s, 73 HobbyMaker, 82 Talking Pictures TV, 83 Together TV, 84 PBS America, 235 Al Jazeera Eng, plus 20 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?

C

Chris.SE

_{sentiment_very_satisfied}Platinum

2:49 AM

Alan_C:

Hi Alan, I do apologise about the confusion over the , I'd been reading some other performance reports and clearly had the wrong one in mind!
As far as the XB10K tests by ATV go, the at & and and (they didn't measure as there was no transmission on C36 at the time the tests were done) was 5dBuV compared to 4dBuV on & . It peaks at 8dBuV at & , so the results you are getting are a bit of a puzzle if attenuation post amp is not having any effect on the relative and Strength figures.
As far as goes, it should have identification marking on its sheath. There is 50ohm cable but it's used in other applications. 75ohm is what should be used as you know.

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Chris.SE's 3,724 posts GB flag

C

Chris.SE

_{sentiment_very_satisfied}Platinum

8:55 AM

All:

Just a reminder as the listings at the top of the page haven't been correctly updated -
Check you are tuned to 's correct UHF , , , , , , , . That's is the order PSBs1-3, COMs 4-7, Local mux.

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Chris.SE's 3,724 posts GB flag

S

Steppy
7:25 PM

Can I get Sony Classic ( 51) from the ?

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Steppy's 1 post GB flag

S

StevensOnln1

_{sentiment_very_satisfied}Platinum

11:38 PM

Steppy: Sony Classic Movies is carried on the , which is broadcast from , but only in the direction of Bristol and some of the surrouding areas.

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StevensOnln1's 3,553 posts GB flag

A

Andrew Sparkes
7:57 PM

Is there any issues with channel4 and film 4 . Seem to be having signal issues recently. I have rescanned and the has no issues with other . Have notice that it seems to be during poor weather that we get the issues

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Andrew Sparkes's 4 posts GB flag

C

Chris.SE

_{sentiment_very_satisfied}Platinum

9:17 PM

Andrew Sparkes :

Channel4 and Film4 are both on the D3&4/PSB2 the same as a number of ITV - see Channel listings for Industry Professionals | Freeview for which channels are on which multiplex. Did you not notice similar problems with ITV?

had been listed for Planned (Possible weak ) so that might have caused an issue. As you probably know, in your location (assuming you haven't moved) you can receive two other main transmitters - & . If Mendip was weak when you retuned you might have become inadvertently not tuned to Mendip. Check in your TV's tuning section that you are correctly tuned to Mendip's UHF channels. See my post 3 before yours (9th Jan.).

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Chris.SE's 3,724 posts GB flag

F

Fiona
11:42 AM

I'm in Chipping Sodbury and don't seem to be able to get 51 Sony Classic Movies. I've tried a rescan but no joy. The .co.uk site mentions "planned work" at . Might this be the problem?

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Fiona's 1 post GB flag

B

Barrie
12:32 PM

For last few days (5 March) no BBC (all stations, TV and Radio).
Other stations OK.
Usual advice from BBC - do reset, old etc.
Please explain - why suddenly, why only BBC?

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Barrie's 2 posts GB flag

B

Barrie
12:34 PM

For last few days (March 5) no BBC stations received.
All other stations OK.

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Barrie's 2 posts GB flag

S

StevensOnln1

_{sentiment_very_satisfied}Platinum

2:25 PM

Fiona: Please provide a full postcode so that we can see what the predicted is at your exact location. Were you previously receiving Sony Classic Movies? If you were, it may be that broadcast has been reduced temporarily whilst the work is taking place.

Barrie: We need to know where you are (please provide a full postcode) to know what reception is predicted to be like at your location. There is currently planned engineering work taking place at , which may result in the broadcasting at lower power temporarily whilst the work takes place. Have you checked for any loose or damaged cables or connections behind your TV? If you retuned whilst the were missing you may have deleted the correct tuning data for the missing channels.

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StevensOnln1's 3,553 posts GB flag

Page 212

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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If you have other problems, please provide a full (not partial) postcode (or preferably enter it in box at the top right) and indicate where if aerial is on the roof, in the loft or elsewhere.

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