Full Freeview on the Mendip (Somerset, England) transmitter
 | Google Streetview |  | Google map |  | Bing map |  | Google Earth |  | 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 05/06/2023 Pixelation or flickering on some or all channels 
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Digital television services are broadcast on a multiplexes (or Mux) where many stations occupy a single broadcast frequency, as shown below.
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 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.
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?
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 | C5waves | C5waves | |||||||
| C48 | SDN | SDN | SDN | SDN | |||||
| C49tv_off | BBCA | BBCA | |||||||
| C51tv_off | LBS | LBS | |||||||
| C52tv_off | ArqB | ArqB | ArqB | ||||||
| C54tv_off | C4waves | C4waves | C4waves | D3+4 | D3+4 | D3+4 | |||
| C55tv_off | com7tv_off | ||||||||
| C56tv_off | ArqA | ArqA | ArqA | COM8tv_off | |||||
| C58tv_off | BBC1waves | BBC1waves | BBC1waves | BBCB | BBCB | BBCB | |||
| C61 | ITVwaves | ITVwaves | ITVwaves | BBCA | |||||
| C64 | BBC2waves | BBC2waves | BBC2waves |
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
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Saturday, 5 January 2013
R
Richard Hibberd7:33 AM
Does anybody know the exact distance that will affect my freeview reception when 4G comes on line this year? I have an O2 mast on a small industrial estate roughly 60yds from my house.Actually, I am hoping that the company who has been given the job of sorting all this out will give me a freesat dish and I can then connect to my tv which has the tuner in it already. (Chippenham).
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Richard Hibberd: The "exact distance" is a function of
a) the EIRP power output of the 4G transmitter;
b) the ERP power output of your Freeview transmitter;
c) the frequencies used by the 4G mast;
d) the frequencies used by the Freeview transmitter and if these are certain numbers of channels away.
e) the angle between the Freeview transmitter and the 4G determined from your rooftop aerial's POV;
f) if a filter has been fitted.
g) which companies win the upcoming auction and which existing mobile phone sites they decide to use for the 800MHz band services.
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... and, of course, if you have any 4G 800MHz-band devices in your home...
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Richard Hibberd: Presumably, if a filter will work, then you will be supplied with (as I understand it) ONE filter.
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B
Bob F3:32 PM
Stonehouse
Please can someone advise if one can receive Points West from Wenvo Transmitter?
I currently receive signal from Mendip to get Points West, but the predictions are that the reception will become poorer next year.
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Bob F: No because Wenvoe is in Wales and therefore broadcasts BBC Wales and ITV Wales!
I shouldn't be concerned about the change in the prediction. It is probably down to another transmitter becoming co-channel. Predictors should always be taken with a pinch of salt, and in any case, I assume that you are actually more interested in what happens in practice. What's more, October 2013 is a long way away!
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Monday, 7 January 2013
M
Matt3:30 PM
My 1 year old Sony Bravia TV with Freeview HD built-in only finds 20 TV channels (BBC, some ITV, 4, 5 and HD channels) and most Radio stations - all with a strong signal. If I plug the same ariel into my old Freeview box I get absolutely every Freeview TV and Radio channel, all with a strong signal.
The TV software is up to date and apparently some neighbours have seen the same thing with their setup where some devices only see the main (i.e. old terrestrial/analog) channels where other devices find all the channels on the same ariel.
Has anyone come across this behaviour before? I'm in BA15, access the Mendip transmitter and the problem has existed for well over 12 months.
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Matt: It is the case that there is now a two-tier terrestrial television transmitter network. About 98.5% of the population can receive terrestrial television with about 8.5% of those only receiving PSB channels.
Refer to this page for a list of Freeview services by multiplex (mux):
DTG :: DTT Services by Multiplex
Each mux is a single signal which occupies the same space as a single former analogue service.
The PSB network has been designed such that it will be available everywhere that the former four analogue channels were. The COM network fits but doesn't provide as good a coverage.
Refer to this page which the last graph shows the (then) 80 full-Freeview transmitters with projected figures for the number of homes that will receive PSB+COM and PSB-only. Whilst, undoubtedly, the figures are estimates, they nonetheless give a general indication that the COM signals are, to some degree, inferior to the PSBs.
The outcome you have could be as a result of this. Is it the COMs that are always iffy?
From what you describe, the PSBs are fine.
Try manually tuning the COMs but, having gone to the manual tune screen, enter/select the UHF channel number but don't press the button to scan straight away. See whether it gives any indication as to the strength and quality of the signal. Once you have the reading, then scan.
The COM channels from Mendip are:
- COM4 (ITV3) C48
- COM5 (Pick TV) C56
- COM6 (Film4) 52
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M
Matt6:01 PM
Dave: Thanks for the reply, from a quick test it does seem to be the COMs so I'll try what you suggested.
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Thursday, 10 January 2013
I've lost all signal within my house on both outside aerial and an indoor digital one my post code is TA6 4RB please help
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