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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Monday, 21 September 2020
N
Neil Chilton8:41 AM
I have nothing, on three different receivers,
I did have for a while BBC1 SD with good quality and signal strength, but that has stopped now
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N
Neil Chilton8:56 AM
Swindon
Forgot to mention post code SN26 7DE
Now BBC 1and 2 SD are back, on "C32 (562.0MHz)"
Nope, they just dropped out.
I think i'll go back to bed
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Neil's: mapN's Freeview map terrainN's terrain plot wavesN's frequency data N's Freeview Detailed Coverage
B
bruce tearle2:03 PM
things are back to normal, guess it must have been the atmosphere!!!!!!!!!!!!
Msg appearing on Pick indicates that there is a need to retune to ch34 but when I try this I get nothing!!
Has it moved or not?
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Tuesday, 22 September 2020
C
Chris.SE12:06 AM
Bruce Tearle:
Yes it was "atmospherics" there's been a lot of "Tropospheric Ducting" around causing interference, see Effect of tropospheric ducting on Freeview | RTIS for a simplistic explanation. It may continue on and off for a day or two more.
Pick moved to LCN34 and Sky Arts has been put at LCN11, you may need to manually retune the ArqA/COM5 multiplex if you aren't seeing the change, UHF C33 at Mendip.
Neil Chilton:
Weather related issues, see comment above.
Also note that predicted reception at your location for COMs 4-6 is variable from Mendip.
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C
Chris.SE12:08 AM
All:
Just to add to the above, Mendip is currently listed for Planned Engineering with "Possible weak signal" !
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C
Chris.SE7:57 AM
All:
I'm not getting any signal from the Local multiplex (C30) at present. Whether or not this is down to the Planned Engineering is not confirmed.
Earlier Bristol TV was not broadcasting Bristol Live but Yorkshire Live. The other morning it was North Wales LIve, so it suggests there are some major issues at present!
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C
Chris.SE8:26 AM
The Local multiplex signal is coming and going, whether this is "tropo" at my location is as yet unconfined. However, why I have signal Bristol TV is now broadcasting North Wales live (not the listed Judge Judy). It's been suggested that they may have had some servers crash!!
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C
Chris.SE8:50 AM
Tropospheric Ducting confirmed here, so not everyone will be having the signal issues.
However whilst North Wales Live is far more interesting than endless repeats of Judge Judy, uklocal.tv really need to sort out their servers or their listings for Bristol TV!!
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Saturday, 3 October 2020
B
bruce tearle9:49 AM
Just looking for help & suggestions!!!!!!!
Can no longer get any BBC channels on my TV. All others tried [ITV, Channels 4&5, UKTV, etc.] are coming through fine. My set-top box is a HUMAX; I have tried a factory reset on this without any success. Any & all suggestions gratefully received?
Regards
Bruce
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C
Chris.SE12:41 PM
bruce tearle:
Well, as you know you shouldn't have any problems with all the main muxes from Mendip. When was he last time you tried a retune, can you do a manual one for C32?
Looking in the tuning section, what are the signal strengths and quality showing for other multiplexes?
This might indicate an issue with the received signals being fed to the box.
Has the box recently had a firmware update? There might be some sort of issue there, but that would surprise me if you are getting the other muxes ok.
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