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, 2 August 2015
Dave Lindsay
7:42 PM
7:42 PM
Mr stevens: To answer such a question with any degree of certainty isn't possible due to no location being given. As Tewkesbury is in a valley then this by definition often means reception is difficult or some options are out that are otherwise available to those on higher ground.
However, a cursory glance would suggest that, in general, the town is much better served by Ridge Hill, this offering ITV West which is relayed from Mendip (as well as ITV Central). However, only BBC Midlands is carried by Ridge Hill, this being due to differences in editorial regions of the BBC regions and ITV regions.
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Thursday, 27 August 2015
M
M J Levett-Scrivener5:20 PM
Trowbridge
I have just moved to BA14 8SA.
Aerial is high up on an external wall pointing at the Mendip transmitter.
I have carriedo ut factory reset of TV plus then
Automatic tuning only gave me 3 mux, manual tuning got me a fourth (BBCA). (poor signal strength)
I am missing Channel 54 PSB2 D3+4 738000Hz i.e. ITV 1 Channel 4 and Channel 5.
Do I need to install a wide channel aerial?
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M's: mapM's Freeview map terrainM's terrain plot wavesM's frequency data M's Freeview Detailed Coverage
Friday, 11 September 2015
M
Melanie Axon10:44 AM
TA13YD
Just wondered if we are served by this transmitter? We seem to get some very bad interference during the day where the screen freezes and sometimes the whole picture and sound is distorted! We have some very large trees at the back of us that may interfere? They are the responsibility of the council so if they are the problem I am not sure where to go further with this. Certainly when the wind is up the problem increases. Any advice would be welcome.
Thank you
Mel Axon
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Monday, 19 October 2015
@M J Levett-Scrivener - I used to live in Trowbridge and was able to get good reception from Mendip on all multiplexes using an indoor aerial both before and after digital switchover. Therefore, I would be inclined to guess that there's something wrong with your aerial or its connection to your TV/set-top box. Things to check would be alignment, aerial group, cable condition and the condition of your TV aerial socket. If the aerial is old, it may be group CD. This will give problems receiving Com7 and Com8. You really need group W, particularly if the government is going to impose yet more frequency changes upon us. If the alignment is out, you will receive fewer multiplexes with worse reception. Likewise if the cable is degraded.
One other thing that is possible is that your system is OK but that you live in a location where the path of transmissions is blocked. When I lived in Trowbridge, I lived just off Frome Road and had a west-facing window for my aerial. Mendip is more or less west of Trowbridge.
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Charles's: mapC's Freeview map terrainC's terrain plot wavesC's frequency data C's Freeview Detailed Coverage
Tuesday, 20 October 2015
C
Chris.SE8:18 AM
A bit late in the day for these comments, but for the record
@M J Levett-Scrivener
As Charles Stuart says you need to check your coax and TV connections and aerial connections. If there is any sign of corrosion, it's best replaced. You should have absolutely no problem with the signal strength even with your C/D aerial, but if you have to replace it do so with a group W.
@Melanie Axon
Very similar comment for you as well,you should have no problem with all multiplexes from Mendip.
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M
MikeP10:28 AM
Trowbridge
M J Levett-Scrivener:
Further to that said by Charles Stuart above, I currently live in Trowbridge, just off Hilperton Road. Reception of the signals from Mendip are generally very good unless:- there are trees in direct line between your aerial and the transmitter; or there is a physical obstruction between the two; or you have a problem with the aerial system.
If you need to change the aerial I would strongly suggest using a log-periodic aerial as that will cover all the proposed services for the next few years at least. A wide band aerial may work but is less sensitive to the HD services on channels 33 (COM7) and 35 (COM8) from Mendip (see the details at the top of this page for which channels carry the signals from Mendip.) Any aerial will need to be mounted as high as possible due to the proximity to the town centre buildings.
One thought, have you checked whether there is an amplifier fitted to the aerial system and is it working properly?
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MikeP's: mapM's Freeview map terrainM's terrain plot wavesM's frequency data M's Freeview Detailed Coverage
Wednesday, 13 January 2016
D
Dave10:29 PM
ITV HD from all West and West Country transmitters is currently ITV Central West on Freeview channel 103
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Thursday, 28 January 2016
T
Tom Meek7:08 PM
I live in Yate and I don't receive BBC1,ITV or BBC2 in HD yet I get random ones like BBC4 in HD?
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MikeP
8:41 PM
8:41 PM
Tom Meek:
A post code would help us determine whether you are served by a full Freeview Transmitter or a Freeview Lite one. The latter do not all yet carry the complete range of HD services.
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Wednesday, 10 February 2016
C
Chris.SE1:09 AM
@Tom Meek
Yate should be easily served by the Mendip Transmitter (though some locations near Westerleigh could be slightly tricky). Unless you are in some sort of dip or have a lot of trees near you on the line of sight between you and the transmitter, then you should have no trouble if your installation is not faulty.
The HD channels for BBC1,2,3, ITV & Ch.4 are carried on the BBC B (PSB3) multiplex which on Mendip broadcasts on UHF Ch.58 near the top end of the C/D aerial band.
HD channels for BBC4, BBC News, Ch.4+1, 4seven & etc are carried on the COM7 multiplex broadcast on UHF Ch.33 which is in the A aerial band. (see near the top of this page for a full listing of channels).
Ch.58 is the highest frequency from Mendip, and if you have any occasional intermittent problems with any of the regular ITV & Ch.4 channels carried on the D3&4 (PSB2) multiplex broadcast on UHF Ch.54 then there is a good possibility that your installation has deteriorated. Higher frequencies will usually suffer significant degradation with a failing installation, whether it be corroded connections especially at the aerial, elements missing from the aerial, or coax deteriorated from water ingress.
So if your installation is a number of years old, it could well be time to have it replaced, certainly checked by a competent person. If you are having it replaced then you should use a Group W or Log Periodic aerial, although the old group C/D aerials made in the latter days of analogue transmissions will just about give a reasonable signal on Ch.33. the current channels in the C/D band will be moved in future years down to Band A, so a wideband aerial is the correct one for a replacement.
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