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Full Freeview on the Mendip (Somerset, England) transmitter

first published this on - UK Free TV
sa_streetviewGoogle Streetviewsa_gmapsGoogle mapsa_bingBing mapsa_gearthGoogle Earthsa_gps51.237,-2.626 or 51°14'12"N 2°37'33"Wsa_postcodeBA5 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 Digital tick


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 (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)591mDTG-6100,000W
Channel icons
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

COM4
SDN
 H max
C48 (690.0MHz)591mDTG-8100,000W
Channel icons
 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)591mDTG-8100,000W
Channel icons
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)591mDTG-8100,000W
Channel icons
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)591mDTG-1210,000W
Channel icons
from 22nd September 2014: 7 Made in Bristol,

com7
 H -1.4dB
C55 (746.0MHz)591mDTG-672,400W
Channel icons
 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

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 - 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
Thursday, 3 July 2014
J
jb38
sentiment_very_satisfiedPlatinum

9:03 PM

There could be a number of possible sources, therefore in order for anyone to provide an answer with any level of accuracy its essential to know where you are located relative to that of the Mendip transmitter.

link to this comment
jb38's 7,179 posts GB
J
jb38
sentiment_very_satisfiedPlatinum

11:48 PM

bruce : Checking back on your previous postings provided me with the info required, and although none of the alternative signal sources matches up exactly with the direction your aerial is facing the signal is possibly being picked up from either Stockland Hill or the Rowridge transmitter, Wenvoe being another possibility.

Your best action would be to carry out a signal check whilst on BBC1 (likewise on ITV1), the purpose not being so much to check the level of the signal being received but to observe the Mux channel number indicated along with the strength / quality bars.

Stockland Hill : BBC1 Ch26 - ITV1 Ch23.

Wenvoe : BBC1 Ch41 - ITV1 Ch44.

Rowridge : BBC1 Ch24 - ITV1 Ch27.

If though none of the channel numbers mentioned matches up, then check the Mux channel numbers indicated on the two programmes mentioned and give an update on the results.

link to this comment
jb38's 7,179 posts GB
Friday, 11 July 2014
C
Charles Stuart
sentiment_satisfiedSilver

6:27 PM
Bristol

I finally got around to fitting a new aerial. I fitted in the loft because reaching the roof in this house was too difficult. First I bought a cheap aerial but it wouldn't pick up PSB3, though it got all the other MUXes, including the local one. Then I bought a second cheap aerial, one of the ones with three rods (don't know what they're correctly called). It worked but but reception of PSB2 was dodgy unless I used an amplifier. I then improvised. The loft mounting rod I bought was too short, so I bought a wooden broom handle that fitted in the bracket. I mounted the aerial higher up and pointed the nose more noticeably upwards and the problems with PSB2 were solved. The reception quality went from about 55% to 100%. Oddly, the MUX with Pick on it stayed with a signal quality of about 78% but that seems good enough for error-free reception. The local MUX only has a signal strength of 28% but gives a quality level of 100%.

To make sure that the aerial was facing the right direction, I used the compass app on my phone.

The aerial that works is made by Labgear and I have found their products very good in the past. The aerial that wouldn't pick up PSB3 I'll use for my bedroom TV that doesn't have HD reception capabilities.

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Charles Stuart's 159 posts GB
Tuesday, 15 July 2014
S
Scope
8:34 PM

The transponder with BBC News HD, etc is currently black with no signal.. Anybody else having any problems? Other transponders seems to work fine..

link to this comment
Scope's 4 posts GB
Wednesday, 16 July 2014
MikeP
sentiment_very_satisfiedPlatinum

9:08 PM

Scope

I use Mendip as our main signal source and have no problems. All the transmitters are working correctly broiadcasting all the intended mutliplexes. (Transponders are what satellites use to rebroadcast the signlas uplinked to them.)

If you have problems with one particular programme but the others on the same multiplex are OK then you may need to look at you own equipment settings. The com7 mux has several other programmes and they all appear to be working correctly

link to this comment
MikeP's 3,056 posts GB
Friday, 25 July 2014
J
Jon
10:45 PM

Nothing on the com7 multiplex (BBC Four HD etc) from Mendip is receivable by me in Bristol. Because it is on channel 33 a wideband aerial is probably required, which is a bit of a pain.

link to this comment
Jon's 4 posts GB
Sunday, 27 July 2014
C
Charles Stuart
sentiment_satisfiedSilver

10:15 AM
Bristol

Jon, it's quite easy to fit a new aerial if you're able to reach the old one. A decent wideband aerial can be bought for £20 - I got one at Maplin - and if you have a compass or a compass app on a phone, you can align it easily.

link to this comment
Charles Stuart's 159 posts GB
C
Charles Stuart
sentiment_satisfiedSilver

10:16 AM
Bristol

For some reason this site doesn't like the symbol for pounds sterling and it came out as a question mark.

link to this comment
Charles Stuart's 159 posts GB
J
jb38
sentiment_very_satisfiedPlatinum

2:05 PM

Jon: On the assumption that your TV or box is capable of receiving HD transmissions? such as BBC1HD / ITV1HD etc, then in order to determine if any signal is being received from the COM7 transmitter on Mux33, go into the tuning menu on whatever you are using and select "manual tune", if you then enter (or select) 33 but "not" followed by pressing search or scan, the strength of any signal being received (no matter how low) will appear on the signal bars.

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jb38's 7,179 posts GB
Friday, 1 August 2014
Transmitter engineering
sentiment_very_satisfiedOwner

10:39 AM

MENDIP transmitter - DAB: BBC National DAB Radio Weak Signal from 09:06 today. [BBC]

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Transmitter engineering's 138,015 posts xx
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