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, 10 September 2011
K
KMJ,Derby10:41 PM
Pete Green: On 28th March 2012 MuxA/SDN changes mode from 2k to 8k(at high power). Although the frequency remains the same you will still need to retune in order to view this mux after the change takes place.
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Sunday, 11 September 2011
P
Pete Green10:27 AM
KMJ,Derby: Thank you. I've learned a bit more about how things work.
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M
Mike Dimmick12:07 PM
KMJ,Derby: The Digital UK Almanac is showing a change that is not yet in the postcode checker. ArqA will now be moving to C67 (taking over from ArqB) on 28 September. The final channel adopted on 28 March 2012 is now shown as 'TBC'.
http://www.digitaluk.co.u….pdf
This document was republished only a day after its initial release, which did show the same information as the postcode checker.
I assume this is to do with the 800MHz clearance, making space for BBC A to move to a different channel.
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Monday, 12 September 2011
K
KMJ,Derby9:26 PM
Mike Dimmick: Thanks for the info. The postcode checker is usually correct in such matters. I wonder if there were concerns about C56 usage possibly causing interference to the signal from Salisbury.
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Tuesday, 13 September 2011
C
colin armstrong4:50 PM
Hi,
I suspect that I am being a Muppet but where do I find the frequency for a particular freeview channel??
I want to do a manual tune for, say, film 4. I can see that film 4 is mux ARQB but try as I might I can not ascertain the actual frequncy.
Any help greatly appreciated
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C
colin armstrong5:26 PM
Bristol
Hi,
BS36 2hp
I have read and reread the articles re tuning and I want to do a manual tune. However my set asks for a frequency rather than a channel number. Where do i find a listing that cross references channels to frequncies?
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colin's: mapC's Freeview map terrainC's terrain plot wavesC's frequency data C's Freeview Detailed Coverage
colin armstrong: At the top of the page
"COM6 ArqB - as a digital multiplex transmitted on frequency C67 (842.0MHz)"
One for each Mux.
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R
Rune9:01 PM
Swindon
Any idea when the channels currently transmitting @ 10000 will be increased?
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Rune's: mapR's Freeview map terrainR's terrain plot wavesR's frequency data R's Freeview Detailed Coverage
Rune: From above:
Mendip SDN and Arqiva A will temporarily operate on channels 62+ and 56+ respectively (both at 10kW ERP) until September 2011. Final DSO channels will then be adopted, though ERP levels will remain limited until early 2012. Arqiva B will operate on channel 59+ (10kW ERP) until January 2011, when it will move to channel 67 at 26kW ERP until September 2011. Arqiva B's final DSO channel will then be adopted, though ERP will remain limited until early 2012.
ArqA increases from 10kW to 12.5kW on 28 September (changes to 64QAM mode and loses its current +167kHz offset.
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From Switchover events September- December 2011 | ukfree.tv - independent free digital TV advice - 28th September Mendip - MuxA on C62 becomes SDN on C48 (final due to Oxford end), Mux C on C56 becomes ArqA on C67 (moves again 28 Match 2012), ArqB moves from C67 to C52 (final due to Oxford end).
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