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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Thursday, 22 September 2011
Also just found this on the website for Challenge:
Important Information For Freeview Viewers | Challenge
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Saturday, 24 September 2011
C
Chris1:30 PM
When is the power going to be increased on the Mendip tranmitter for those showing as very low currently ?
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Sunday, 25 September 2011
M
Mr M. Lee5:53 PM
Leicester
Mike from LE4 0US. Since the changeover my signal strength has gone from 60% to an erratic 40, 30, 20 15 while i,m watching tv and then I lose it altogether. I.v tweaked my aerial about 10 times and I still cant get common stations such as BBC1, 2, ITV2, Film 4. I have freeview built in the tv But the day of the changeover everything changed. My girlfriend at LE3 1ST also in Leicester along with others have the same promblem. We both have Digial tv aerials. This is seethingly frustrating!!!! Grrr! Can anyone help? (LE4 0US)
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Mr's: mapM's Freeview map terrainM's terrain plot wavesM's frequency data M's Freeview Detailed Coverage
J
Jim F8:53 PM
Chris: DUK show March 28th next year as the date for the COM mode change (SDN from 2k to 8k) and power up.
N.B. There's a retune event this Wednesday (28th) - all three COM MUXs change channel and Arq A changes mode (16QAM 2k to 64QAM 8k). Don't know if you may get some interim power increase at the same time.
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Tuesday, 27 September 2011
C
Chris.SE10:25 PM
There is some confusion as to where mux ArqA will be later tonight. The OFCOM document Digital Switchover Transmitter Details for the West Region Issue 4
http://stakeholders.ofcom….pdf says it's moving from 56+ to 56.
But DigitalUK Trade View says it's moving to 67 (vacated by ArqB).
Interestingly, DigitalUK TX details page for the West Tranbsmitters shows it as being 56.
We will see later :)
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C
Chris.SE10:29 PM
Part of my previous post disappeared!!
I further added -
"Interestingly DigitalUK's Transmitter Details page for the West shows ArqA as being on 56!
We shall see later which is right :)
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Wednesday, 28 September 2011
C
Chris.SE4:50 AM
Well, the TradeView was right, ArqA is on 67.
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M
Mal8:49 AM
Changes so far at Mendip this morning.
COM4 is now on C48(690MHz)
COM6 is now on C52(722MHz)
Power now much higher.
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C
Chris.SE12:16 PM
Briantist: Hi Brian, any chance you can update the Mendip UHF Channel numbers at "Digital switchover process details" & "After Wednesday 7th April 2010".
It's somewhat confusing for the uninitiated when looking at the MUX lists above these.
To clarify for anyone who is confused, currently -
Arq A is on C67, Arq B is on 52, SDN is on C48.
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M
Mike Dimmick12:55 PM
Chris.SE: The move to C67 was a very late-breaking change, the Digital UK Installers Newsletter describing today's retune was issued on the 29th of August showing the move to C56 (with no offset), then reissued a day later showing the move to C67.
The trade view when plugging in a postcode does show the correct information, but the 'trade region' page doesn't.
Ofcom's most recent licensing document http://licensing.ofcom.or….pdf also shows C67 from 28/9/11 to 28/3/12.
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