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 06/12/2021 Screen may go black 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-3	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, 250 BBC Red Button, plus 16 others
PSB2 D3+4	H max	C34 (578.0MHz)	591m	DTG-3	100,000W
	3 ITV (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, 25 ITV4, 30 E4 +1, 35 ITV +1 (West),
PSB3 BBCB	H max	C35 (586.0MHz)	591m	DTG-6	100,000W
	73 Shopping Quarter , 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, plus 1 others 66 TBN UK,
COM4 SDN	H max	C48 (690.0MHz)	591m	DTG-8	100,000W
	CCXTV, 12 Quest, 20 Drama, 21 5USA, 29 ITV2 +1, 32 5STAR, 33 5Action, 42 GREAT! movies action, 45 Channel 5 +1, 56 5SELECT, 58 ITVBe +1, 59 ITV3 +1, 60 ITV4 +1, 64 Blaze, 67 CBS Reality, 68 Horror Channel, 74 Drama +1, 78 TCC, 81 Blaze +1, 203 CITV, 211 Ketchup TV, 212 YAAAS!, plus 16 others
COM5 ArqA	H max	C33 (570.0MHz)	591m	DTG-8	100,000W
	11 Sky Arts, 17 Really, 19 Dave, 31 4Music, 36 pick, 40 Quest Red, 43 Food Network, 46 Film4 +1, 47 Challenge, 48 4seven, 57 Smithsonian Channel, 70 Quest +1, 75 Yesterday +1, 83 Together TV, 233 Sky News, plus 9 others
COM6 ArqB	H max	C36 (594.0MHz)	591m	DTG-8	100,000W
	25 Dave ja vu, 27 Yesterday, 34 GREAT! movies, 39 DMAX, 41 CBS Justice, 44 HGTV, 68 CBS Drama, 82 Talking Pictures TV, 84 PBS America, 234 RT, 235 Aljazeera English, plus 17 others
LBS	H -10dB	C51 (714.0MHz)	591m	DTG-12	10,000W
	from 22nd September 2014: 7 Made in Bristol,
com7	H -1.4dB	C55 (746.0MHz)	591m	DTG-6	72,400W
	Together TV +1, Merit, Court TV, 65 FreeSports, 71 Quest Red +1, 76 Now 70s, 86 More4 +1, 87 PBS America +1, 91 That's TV , 96 Forces TV, 106 BBC Four HD, 107 BBC News HD, 113 RT HD, 114 Quest HD, 205 CBeebies HD, plus 2 others 111 QVC HD, 112 QVC Beauty HD,

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?

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	27 Mar 13	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 - 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 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

2:48 PM

Zena:

The is listed for Planned this week with "Possible Pixelation or flickering on some or all ", so this is most likely what you've been experiencing.
You didn't say which news , but the other news channels aren't carried on the same multiplexes (groups of channels) so may not be affected at the same time.

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Chris.SE's 2,914 posts

P

Peter Robinson
4:32 PM

UHF 35 & 55 are splitting into wide horizontal bars. The TV program is still there - just split into bands. Other programs other channels are OK. The is in the and points towards Bristol. I think I'm off the . There is no . NP26 5WA Sudbrook (Caldicot).

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Peter Robinson's 1 post

C

Chris.SE

_{sentiment_very_satisfied}Platinum

11:30 PM

Peter Robinson:

Is your receptionOK now?
I can only assume that is could have been some "passing" as the BBC are normally very good at reporting any problems that affect their and I can't find any reports affecting BBC channels on the BBCB HD / PSB3 on from , or COM7 HD on .

I am currently having no problems either and I'm a bit further away than you. Your pointing rowards Bristol is abour right, it should be compass bearing 171 degrees, that's 9 degrees E of due S at your locale.
You are predicted to to get excellent of all multiplexes from Mendip (and also !).

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Chris.SE's 2,914 posts

Page 220

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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