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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Wednesday, 14 September 2016
J
jb3812:36 AM
David: Although fully appreciating that your reply/query is directed at MikeP, I would like to add that the difficulties experienced with the reception of Mux 33 is possibly related to the usual problems experienced during waves of high pressure sweeping across the country, such has been happening for around the last two weeks or so now and indeed continues to do so.
One of the undesirable side effects of same being by allowing reception of distant stations (not necessarily UK based) transmitting on the same Mux channel numbers as that used by the local station, the effect of being erratic intermittent reception dependant on the strength of the alien station.
Needless to say, nothing can be done to help alleviate this type of problem except to wait until the situation improves.
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Friday, 16 September 2016
MikeP
10:13 AM
10:13 AM
David Price:
JB38 says exactly what I would have said. Do NOT try to retune your equipment until at least the warm weather has cooled.
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Wednesday, 21 September 2016
D
David8:52 PM
Mike and JB38 This problem is persisting and I am informed many people in the Frome and Warminster area cannot get a good signal on Flux 33.It is intermittent. The TV engineer I mentioned who claims a perfect signal in Warminster cannot get it either. At what stage do we stop blaming the weather . Note there are BBC stations on this frequency, like BBC4HD and BBC News HD.
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Thursday, 22 September 2016
MikeP
10:24 AM
10:24 AM
David:
Above your posting is a statement to the effect that Mendip may be on reduced power currently due to engineering works. That can be the cause of your problem so do not try to retune until the work is completed.
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Sunday, 25 September 2016
D
David3:58 PM
MikeP: Is there any way of discovering when the engineering is likely to be completed. Can we contact Mendip transmsitter direct?
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G
GEM4:02 PM
Sturminster Newton
I'm in an appartment (with a communal aerial) in Sturminster Newton and we have been unable to watch any Freeview channel for some weeks now. Luckily we also have a communal Sat dish so those of us who use satellite are ok.
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GEM's: mapG's Freeview map terrainG's terrain plot wavesG's frequency data G's Freeview Detailed Coverage
R
Richard Cooper5:42 PM
GEM: Hi, Gem. as I've said before on here, it is the landlord's duty and responsibility to ensure the communal aerial system is working, but the landlord may not do anything if residents don't inform him that there is no Freeview signal, so someone needs to report it! Richard in Norwich.
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Monday, 26 September 2016
MikeP
10:14 AM
10:14 AM
David:
The transmitters are operated by Arqiva and any questions about their operation should be aimed at them.
Details of how to contact them are at Contact Us
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Monday, 28 November 2016
S
Stephen10:01 AM
Bristol
Over the weekend 26,27 Nov 2016 we have had none of the channels on com7 (eg BBC4 HD, BBC news HD). Checking the signal strength it is given as 0% - absolutely nothing. In the past values below 25% in heavy rain have given occasional blocky pictures. All other channels are fine with signal strengths in the 30-50% range so the roof aerial is still working OK. The web site says that there are no transmitter problems. Re-tuning in case com7 has moved frequency finds nothing. Our postcode is BS6 7JR.
Any ideas?
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Stephen's: mapS's Freeview map terrainS's terrain plot wavesS's frequency data S's Freeview Detailed Coverage
M
MikeB1:45 PM
Stephen: If all the other channels are working in the 30-50% range and your just 24km from Mendip, then its unlikely that ' the roof aerial is still working OK', or at least something is up with part of your system. At that distance, you might even need an attenuator - 75% should be perfect, so your at the low end of workable, even on the OK channels.
Com 7 is a weaker signal with lower power, so if there is a problem, thats the canary in the coalmine. Check your system, starting back from the TV - could be something as simple as a dodgy fly lead. Then follow the path up. But it sounds like your system is just hanging on, and the probalems your getting in heavy rain point to moisture getting in somewhere, and kiling the signal. Once it dries out, it gets a bit better, but the underlying problem will not go away.
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