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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Tuesday, 1 April 2014
S
Susan4:49 PM
Com 7 on ch 33 went live today around lunchtime been watching BBC News HD all afternoon.
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Charles Stuart5:58 PM
Bristol
I am confident that I can fit a rooftop aerial myself. Which one would be good for an area with medium to strong signals, where do I buy it and how much does it cost?
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Charles's: mapC's Freeview map terrainC's terrain plot wavesC's frequency data C's Freeview Detailed Coverage
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Mike 7:31 PM
Com 7 Bh15 Poole You View Signal 45% quality 100%
Slightly lower on Samsung TV signal 36% Bit error level 1500
All channels ok
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Charles Stuart: A log periodic:
Aerials, TV Aerial and Digital Aerial
Mendip Transmitter
Other retailers and aerial models are available.
ATV's "DM Log" is a Blake DML26WB.
The "Log 36" (previously "Log 40") is a Vision:
TV & Radio Aerials Catalogue » Vision Products - Powerful Products. Easy Installation. Excellent Value
The gain curves of logs are much flatter than those of yagis, plus you would appear to be in a good signal area so the log must be the best bet.
You can't use a Grouped aerial because Mendip uses channels across the entire band. Also, current Mendip Group C/D channels may be moved downwards in future to accomodate more mobile services.
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Colin8:10 PM
New channels found on my Panny in West Somerset, channel 33. Max strength 10 via log periodic aerial.
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Charles Stuart10:22 PM
Bristol
Interesting thing is that I can receive Com 7 using an indoor aerial, with a signal booster, but the old roof aerial gets nothing. Definitely need a new roof aerial.
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Charles's: mapC's Freeview map terrainC's terrain plot wavesC's frequency data C's Freeview Detailed Coverage
Charles Stuart: I suspect you've got a "grouped" rooftop aerial, whereas your indoor aerial is wideband.
The "old" allocation for this transmitter was C/D. If you didn't get Channel 5 on analogue very week, this would certainly be the case.
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Charles Stuart10:36 PM
Bristol
Dave Lindsay, thanks for your post, though I already knew the information you've given me. Being in Bristol, a Sheffield retailer isn't very convenient - I try to avoid mail order. Specifically what I want to know is where can I buy one locally and how much does it cost?
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Charles's: mapC's Freeview map terrainC's terrain plot wavesC's frequency data C's Freeview Detailed Coverage
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Charles Stuart10:42 PM
Bristol
Briantist, yes, it is C/D group. I suspect it's the aerial put up with the house in 1972 and probably needs to be renewed anyway. The cable probably needs to be renewed too but income limitations mean that I can't do that yet. I'll just change the aerial for now.
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Charles's: mapC's Freeview map terrainC's terrain plot wavesC's frequency data C's Freeview Detailed Coverage
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