Full Freeview on the Mendip (Somerset, England) transmitter
Brian Butterworth first published this on - UK Free TV
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.
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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, 28 April 2018
S
StevensOnln111:31 PM
Jackie Webb: Sky News is on the COM5 multiplex which moved to a new frequency a couple of months ago, which is outside the range that a Group C/D aerial (which you are likely to be using for Mendip) was designed to receive. If you don't have satellite or cable you may be eligible to have a replacement wideband aerial fitted free of charge, which can be arranged by contacting the Freeview Advice Line (see link below).
Important changes to Freeview TV signals | Freeview
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Tuesday, 1 May 2018
C
Chris.SE1:05 AM
SJ Dunnett: In addition to what has already been said by StevensOnln1, you heed a high(ish) gain wideband (group T) or log periodic (log36) aerial. You have line of sight to the transmitter so should not have any problems. You should not need anything as big and clumsy as a Tri-beam or a 22 element. Unless you are planning to install the aerial yourself, I would seek the advice of a CAI registered aerial installer.
Jackie Webb: A lot will depend on your location (need your postcode to see what predicted reception is for your location) and how old your current aerial is. After Ch.5 analogue (UHF35) started transmitting from Mendip (long before digital), there were some "enhanced" C/D group aerials produced which weren't too bad at the 30's UHF channel range. It would be a good idea to check that you are actually tuned to the correct UHF channel for COM5. See my post Tuesday, 6 March 2018 3:55 PM for detail. Check your TV manual for how to do this & manual tuning.
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Wednesday, 9 May 2018
A
A G Hearn11:12 AM
Hello,
Since the change in frequencies I have been unable to receive Sky News and Dave.
I have installed what I thought was an upgraded wide band aerial Screwfix high gain 48 element code30515 but no better. I note both are on channel 36 ARQA.
I also have a Tevion 14dB amp in circuit.
Can you advise further please. Aerial is on roof. Thought of higher pole as on bungalow.
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J
js11:26 AM
A G Hearn: ARQ A is on UHF channel 33 from Mendip. see:
Coverage Checker - Detailed View
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Saturday, 12 May 2018
N
Norman Lambert12:37 PM
I'm confused. Recently I changed my tv aerial and started to receive signals from Mendip (before that I was tuned in to Hannington, all legit because I live on the border between these two transmitters). I did a complete retune and now get a bunch of channels with BBC1 West (etc) on channel 49, with good reception. So far so good. But your table shows (I think!) that on 31 March this year BBC1 (etc) moved to Channel 32. I get nothing at all on Channel 32. What gives, please?
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Wednesday, 16 May 2018
B
Bill McDonald2:09 PM
Just purchased a brand new up to date TV and had a new K aerial installed and guess what from my location here in Somerset I still cannot get consistent reception of all the HD channels, it has now proved beyond doubt that digital reception on the Mendip transmitter is worse than useless in the Yeovil area. We sit on the crosswires of Mendip, Stockton Hill and Rowridge and none of them give us a decent service. If ever a place needed a relay it's here. I think it's time to pack it all in and go back to radio.
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Bill McDonald2:13 PM
Sorry that should be Stockland Hill and not Stockton!
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C
Chris.SE2:57 PM
Bill McDonald: I can see that parts of Yeovil seem to be a bit of a no-go area, but obviously it depends on where you are, your postcode will enable a better prediction of likely reception.
Is it only the HD channels you are having a problem with - if so which mux? BBCB, COM7 or 8?
Another possibility you might consider, does your new TV have a built-in Satellite tuner?
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Chris.SE3:12 PM
A G Hearn: Is it only Sky News and Dave you are having a problem with on the ARQA/COM5 mux - ie. are you getting - Pick (11), Sony Movie Channel (32), Movies4Men (48)? If you are getting these other channels, then it's possible that retuning hasn't put all the channels in the correct location - you might find them in the 800's. In which case I would suggest a full reset - see your TV manual if need be, but the usual method is the do a full automatic scan with the aerial unplugged.
You may get some help from the Freeview reset procedure link (in the top area of the comment box here).
However there are other possible reasons and your postcode would help to look at the likely reception in your location. You may be in a difficult spot, there may be local interference, you may possibly now have too much signal.
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M
MikeB4:23 PM
Bill McDonald: put your postcode into the site, and it should tell you signal you should get at your location. If it's rubbish because of geography etc, just get Freesat.
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