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 29/05/2023 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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Sunday, 15 July 2012
J
jb388:59 PM
Tracy Gill: I was reading the somewhat lengthy saga concerning your reception problems including "some" of the replies as they likewise can be time consuming to wade through, however what I wondered about was if at any time you had checked with anyone close by to find out if they experience similar reception problems to yourself?
The reason I ask, is because on a Google earth check I see that most aerials seem to be perched on top of high mounting poles, and with the property next to the mini roundabout sign having an aerial that's quite inappropriate for the situation that its in whereby its facing into trees, "inappropriate" by the fact of it being a high gain and likewise sharper pick up device whereas aerials of a much lower gain and likewise having a broader pick up pattern are usually far more effective in these type of situations, and with them not necessary being mounted high up unless by doing so clears the top of the trees, as if it doesn't then the aerial is effectively facing into a higher density parts of the tree vegetation.
Have you at any time purely for test purposes tried a set top aerial to verify or not if anything could be received at lower levels, although the impediment (as I see it) with trying this sort of thing in your type of situation is that the signal would be travelling through the gable end of the property, and so its not exactly a fair test.
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Thursday, 19 July 2012
T
Tracy Gill6:01 PM
Shepton Mallet
My aerial is mounted on my chimney stack, and my house is the middle one in a terrace. Unfortunately most of my neighbours use Sky. Also I don't know if this could be affecting the signal but a few years ago a load of trees were planted on the side of the hill between us and the mast.
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K
KMJ,Derby6:37 PM
Tracy Gill: Have you ever tried to receive a signal from Stockland Hill? S/H is SW of your location, would that avoid the trees? You would get the wrong regional news, of course, but that would be better than no BBC channels at all.
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Sunday, 22 July 2012
T
Tracy Gill8:10 PM
Shepton Mallet
Have finally decided enough is enough and have given in to my husband and kids and signed up to sky.
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J
jb388:44 PM
Tracy Gill: Well satellite reception virtually guarantees glitch free reception for 99.9% of the time 24/7 all the year round as nothing can really affect it, except that is sometimes during a really heavy thundery downpour when the signal might drop out for a minute or so, but though in cases like yours where reception is being spoiled by something out with your control i.e: trees, a satellite system is the only answer whether it be Sky or Freesat.
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Monday, 23 July 2012
O
Owen Lynch8:06 PM
Trowbridge
Post Code is BA14 6NT
Since early July, my Freeview reception has been poor (Mendip Transmitter) with Pixelation and after retuning, loss of Channels( Sky News / BBC1 / 2 etc). This problems happens regularly during the summer when the trees are in leaf. I fitted a new external aerial last year but still the problems persist. My house has three TVs and all suffer the problem. I also has an 8 Way Aerial Splitter installed (SLX8).
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B
Ben Ward9:31 PM
Success! I have sorted out my TV problems FINALLY. It was merely a failed line amplifier which wasn't putting out enough signal (so it was indeed a mains issue). Aerial reception was fine. Thanks go out to Kevin from Wiltshire Aerials.
With a fair few loss of signal/pixellisation problems on the Mendip transmitter reported on here, could some sort of spike have messed people's signal/splitter/amp/picture up?
jb38 especially, thank you for your help with this. I must say I am thankful that I've found this website.
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J
jb3811:50 PM
Ben Ward: Many thanks for your update on the situation and pleased to hear that you are fully operational again.
With regards to the powered splitter having failed, this as you will most likely have sussed out was the reason for my request (13th July @ 2.21pm) for you to try switching off the mains supply to the splitter, as if nothing changed by you having taken that action then it was positive proof that the unit was faulty, as of course it transpired that it was, but though I do fully understand your reasons for not being able to carry out the request by fact of its power source actually being in the loft thereby not being easily accessible.
And on the subject of the booster / splitter, if indeed its actual power supply had failed then nothing could really have caused that to happen excepting the possibility of its power transformer having tripped out (thermal fuse) through running continually in a slightly overheated state.
On the other hand though if it wasn't the more usual fault of the power supply having failed and the input to the device was connected to your outdoor aerial, then its likely that its transistorised input amplifier had failed through the aerial having picked up an excessively high level of static rain during some thundery conditions that may have occurred at some time, as boosters / splitters can suffer from this in exactly the same way as do some mast head amplifiers when connected to roof aerials.
Of course this latter comment re: input amp failing is never applicable at any time to loft mounted aerials.
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Thursday, 26 July 2012
Iestyn: If you still have problems, please can you see the Freeview reception has changed? | ukfree.tv - 10 years of independent, free digital TV advice page?
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A
A N Alder10:58 PM
Weston-super-mare
Hi
I have a major problem with the BBC broadcast channel. Channel 48, 52, 54, 56 all reporting strength and quality 10 except Chan 61 carrying BBC transmissions. This has been constantly measuring poor to very poor on all receivers, PVR's dropping serial link on most programmes. Seem to have near perfect line of sight to Mendips. Post code BS22 9EF (Weston-super-Mare).
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