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 11/11/2024 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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Sunday, 15 May 2011
J
jb385:04 PM
Christopher Innes: If you are presently receiving the BBC and ITV1 channels in a satisfactory fashion then I would wait until after the changes take place in September before making a decision to alter anything, the reason being that provided the person who fitted your aerial 12 years ago didn't choose to "over" cater for channel 5 analogue being on much lower power than the other analogue stations then the present aerial should be OK for Freeview without compromising anything.
It should be said though, that even with the changes that's being made in September you will really have to wait until early 2012 before everything is finally stabilised, as some of the Multiplexes will still be transmitting on a reduced output up until then.
You should have a study at the info on the top header to this page, as you will find most of what you require to know amongst the wealth of info there, including by the way the coloured end caps that are used to identify aerial groups, these end caps being on the common horizontal crossbar that holds the elements, although you possibly might not see them easily on a roof mounted aerial.
You should also carry out a signal check (associated with TV's tuning menu) to see what the strength / quality indications are on each of the Mux channels you receive, the MUX channel numbers / frequency (in brackets) indicated at the bottom of each section.
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Monday, 16 May 2011
J
Jim F.6:57 PM
Steve (Melksham),
The replacement Humax box seemed also to have a somewhat wobbly centre socket for the coax plug to go into, but behaved totally differently when subjected to the coax wiggle test - not a hint of a hiccup or hesitation; rock solid. Its now on for a couple of weeks test including recording (where it used to show trouble).
I'm still wondering whether your Panasonic might be doing something similar, even if the aerial plug is a good fit.
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Tuesday, 17 May 2011
P
Patrick Hewitt2:48 PM
when freeview first came out I used to get all the channels but for the last 2 months I am miss channels 11,15,18,19,21,22,24,25,29,35,44,45,47,48,82 and I have had now signal on channels 10,23,26,27,30,31,34,43 and 46. I have 2 tvs both on different freeview boxes and both on different aerials, one is new and the other is old. Both aerials are outside on the roof and I have retuned them both over 10 times what is wrong.
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Patrick Hewitt: I would see Freeview reception has changed? | ukfree.tv - independent free digital TV advice .
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Sunday, 22 May 2011
M
MFPA7:33 PM
Bath
Hi. Block of 6 flats in Peasedown St John . Communal TV aerial on the roof is a 14-element group c/d contract aerial pointing at Mendip (but first it points through the branches of a tree about 12 feet away and then a line of trees about 40 yards away on a hill). Distribution amplifier in the loft of one of the flats. The old analogue service was watchable but fuzzy, and an additional signal amp near the TV set made it close to perfect. Freeview has frequent dropping-out of sound and blockiness or freezing of pictures; the "no signal" message is less frequent but still multiple times per day. Without the set-back amp, Freeview shows only the "no signal" message.
Are any of the following likely to improve the reception?
* relocate the aerial to miss the nearest tree?
* put it on a taller pole to maybe help with the next line of trees?
* replace the aerial with a Log 40, Yagi 18, or DY14WB?
* I know nothing about the quality of the distribution amp; might it be better to replace it with a masthead amp and a splitter?
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MFPA's: mapM's Freeview map terrainM's terrain plot wavesM's frequency data M's Freeview Detailed Coverage
Monday, 23 May 2011
MFPA: Yes, the first two options are the best, you can't compensate for the loss of signal to the trees with a larger aerial or amplifier.
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Wednesday, 1 June 2011
L
leeroy9:08 AM
We live in Enmore
Have lost several channels recently - Fiver, 5USA ITV4 etc
Also BBC channels are pixelating
This has only happened in the last few days, Mid May 2011 onwards.
Is this related to Low Power on Transmiter, as we've had good reception until now
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Thursday, 2 June 2011
leeroy: The transmitter has not changed. Please can you see Freeview reception has changed? | ukfree.tv - independent free digital TV advice for help.
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Tuesday, 21 June 2011
C
Colin11:15 PM
Gillingham
We live in Gillingham, Dorset
Have lost several channels recently - Fiver, 5USA ITV4 etc
I have the biggest aerial one can buy and I still cant pick up all the free view channels!! When will the "very Low" band be improved. Why do we pay 100% TV licence when we do get 100% of the channels
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Colin's: mapC's Freeview map terrainC's terrain plot wavesC's frequency data C's Freeview Detailed Coverage
Wednesday, 22 June 2011
M
Mike Dimmick3:13 PM
Colin: Check that your box hasn't decided to tune into Stockland Hill instead. Some just store the first version of the channels that they find, and Stockland Hill is on lower frequencies. The prediction for the commercial muxes from Stockland Hill is variable or poor, and the aerial will pick up less signal from that direction, but it could still be enough to detect the services. Changes at other transmitters, particularly Ridge Hill which now uses the same frequencies, could have made it worse. See Digital Region Overlap for some thoughts on how to fix this.
"I have the biggest aerial one can buy."
That could be your problem. Digital UK's postcode checker shows a prediction of 99-100% across the board, and it's usually a bit pessimistic.
There's a slight terrain restriction which will reduce levels slightly compared to clear line-of-sight. Line-of-sight levels are expected to be 80 dBuV max, on Mux 2/D3&4 (C54) and minimum 69.6 dBuV on Mux A/SDN (C62). These figures include 10 dBd of aerial gain, which is what Digital UK use in their predictions. The recommended upper limit, to avoid intermodulation, is 65 dBuV.
If you have any amplification, you should remove it. You will probably also need to add some attenuation to bring levels into spec.
As far as the TV licence goes, it's your licence to own and operate a TV. That's it. You have to pay the full rate if you own a colour TV. You can still pay a reduced rate for a monochome TV, bizarrely. The funds from the licence fee go to the BBC only, so even if it were based on reception - which it is not - I can't see that you'd be entitled to any discount if you were getting all BBC services.
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