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 18/09/2023 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, 19 March 2016
S
Sandra Hares9:28 AM
I live in Trowbridge and one of our TVs cannot get a good signal on any channels...the other TVs in the house work fine...even changed cable and tried another TV with the same aerial cable in the same room and that works fine...what could have changed...I have tried re-tuning and manual tuning with the correct UHF numbers but stil pixellating on all channels with poor signal
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J
jb388:58 PM
Sandra Hares: If the TV that you report as not getting a good signal on any channels is found to be the same when tested on any of the outlet sockets used by other TV's? then the TV is defective.
One possible reason for the problem could be that the "inside" of the TV's aerial socket ("o" shaped section) has widened to the extent that it isn't gripping the aerial plugs middle pin, meaning that there is no electrical contact between both.
If on a visual inspection the inside section of the TV's aerial socket does appear to have widened, slightly crimp it together, or just crimp it slightly no matter what it looks like!
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Tuesday, 29 March 2016
S
Steve Poile2:42 PM
Just moving to wellingtonand would appreciate which direction to point my ariel?
Appreciate
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J
jb388:19 PM
Steve Poile: Although in the interests of accuracy a post code is really required, however, if you are referring to Wellington - Somerset? (TA21) the two transmitters covering the area are Mendip @ 32miles / 57 degrees and Stockland Hill @ 13 miles / 153 degrees, the degrees in both cases only being approximate, hence why a post code is required.
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Wednesday, 30 March 2016
MikeP
8:05 AM
8:05 AM
Steve Poile:
There is also the issue about terrain. Some of the hills around Wellington, Somerset may make reception from one or other of the main transmitters somewhat difficult. A Post Code will allow examination of the terrain and reception predictions for a particular area. These would show as the blue boxes below ypur submission, like those below this for my location.
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Monday, 11 April 2016
Transmitter engineering
10:09 AM
10:09 AM
MENDIP transmitter - Possible weak signal [DUK]
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Tuesday, 19 April 2016
Transmitter engineering
12:09 AM
12:09 AM
MENDIP transmitter - Possible weak signal [DUK]
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D
Dr J Harvey12:39 PM
Hi, I live in the Chippenham area and we used to have good reception of all the multiplex channels including SDN & BBCA. Recently SDN has moved to C48 which is adjacent to the BBCA mux on C49 and we now have appalling/ unwatchable reception on all program channels on C48 & C49 as evidenced by signal measurements giving good signal strength but very poor and highly variable signal quality for BOTH C48 & C49 (other muxes still give good reception).
I understand that in RF planning one never collocates transmissions on adjacent frequency bands on a given transmitter as this reduces the usable range on these bands arising from increased cross interference.
I would prefer not to have to move to satellite reception or internet to receive Freeview programs.
Why has this been done and are there any plans to move either of these muxes to other frequency bands in the near future to avoid this problem ?
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Friday, 22 April 2016
Lost signal on com7 C33 (570.0MHz) in the BA1 6xx area of Bath.
I performed a reset (first-time-install) on the tv and all programmes in that block have now been removed from the EPG.
Any advice please?
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J
jb387:06 PM
fade2gray: Mendip is listed on this weeks engineering page with the status of "possible weak signal", the most likely reason for your problem.
If you had refrained from retuning your Freeview device the signal would have returned of its own accord, as the channel would still have been stored in the tuners memory system, retuning having deleted same, as things are, the only way of restoring it is by carrying out a "manual" tune on Mux C33 now and again in the hope that the signal level has risen high enough for the tuner to lock on to it.
By the way, the only reason a manual tune was suggested is to avoid upsetting the programmes already stored.
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