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.
This transmitter has no current reported problems
The BBC and Digital UK report there are no faults or engineering work on the Mendip (Somerset, England) transmitter._______
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, 23 July 2015
A
Anthony8:29 PM
Weston-super-mare
BS22 8QF
Aerial on roof.
I seem to have a problem with Channel 33: All the HD channels break up and are unwatchable.
I don't know what to do first to work out what the problem is.
Anyone know of a aerial installer who knows what they are doing and won't rip you off?
Thanks
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Anthony's: mapA's Freeview map terrainA's terrain plot wavesA's frequency data A's Freeview Detailed Coverage
Saturday, 25 July 2015
A
Anthony1:34 PM
Weston-super-mare
It seems to be intermittent.
BBC News channel seems to break up quite often, but I recorded 'Film review' and it recorded without a single problem, but that was for only 15 minutes though?
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Anthony's: mapA's Freeview map terrainA's terrain plot wavesA's frequency data A's Freeview Detailed Coverage
Dave Lindsay
2:23 PM
2:23 PM
Anthony: Should you have two aerials one on Mendip and one on Wenvoe and these combine into one downlead, then this may be the cause of your issue receiving PSB1 on C49, and indeed any channel below C51 from Mendip.
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A
Anthony8:12 PM
Weston-super-mare
Dave Lindsay:
Thanks for the reply.
Can you recommend a professional aerial installer in the Weston Super Mare area (I'm not sure if you are from the Weston super mare area?)?
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Anthony's: mapA's Freeview map terrainA's terrain plot wavesA's frequency data A's Freeview Detailed Coverage
Dave Lindsay
9:13 PM
9:13 PM
Anthony: Unfortunately not. I'm not an aerial installer myself and I'm a long way away in Yorkshire.
If you have two aerials, wired as described in my previous posting, then you will probably be able to turn the Wenvoe-facing aerial to Mendip, this obviously forfeiting reception of Wenvoe. The other alternative is to replace the Mendip aerial with a log periodic such as the Log 36 mentioned here (this, I believe, being a 36 element log made by Vision Products):
Mendip Transmitter
V10-36L 36 Element Stub Tuner Super Log Periodic Aerial ? Vision Products - Powerful Products. Easy Installation. Excellent Value
A terrain plot shows you would have a clear path were it not for high ground at about 3.5 to 4 miles out and 6 to 7.5 miles out:
Terrain between ( m a.g.l.) and (antenna m a.g.l.) - Optimising UK DTT Freeview and Radio aerial location
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A
Anthony10:43 PM
Weston-super-mare
Thanks for the detailed reply.
I only have one aerial on my roof facing towards the Mendip transmitter.
You know a lot more about aerials than I do, I don't understand what type of aerial I should have or anything else for that matter, so thanks again for your help.
So you think from the link for the aerial you mention that it would be a good idea to get this aerial?
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Anthony's: mapA's Freeview map terrainA's terrain plot wavesA's frequency data A's Freeview Detailed Coverage
Sunday, 26 July 2015
The only way you can be sure what Aerial is required, if infact one does need replacing is for a aerial rigger to various test procedures with his or her meter.
Far as replacment Aerial there is no one including myself that could give you a competent answer sat round a desk without getting on your roof with a aerial and meter to deside what is or would be required.
However if you dont mind a over size aerial to play safe make sure your chimney lashing mounts and mast are adequate to take the load, after all signal can be reduced in various ways , its just big Aerials look horrible and if not needed its amature and not practical.
If you want my advise I would be looking at your coaxial downlead because quite often substandard or old coaxial cable can deteriorate and often not handling the lower frequencys as well as further up the scale , although adequate signal strenth often remains it is the errors within the bits that give the problems measured as bit error rate. (BER) which should be the first thing the rigger does soon as he/she walks through your front door. Firstly before calling anyone out check the fly lead running from wall socket to TV , if its one of those molded end type thin leads replace with better quality after that without a meter your fairly knackered.
All the best
Dave
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Monday, 27 July 2015
A
Anthony8:22 PM
Weston-super-mare
David: Thanks for the details.
I'll look into your suggestions.
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Anthony's: mapA's Freeview map terrainA's terrain plot wavesA's frequency data A's Freeview Detailed Coverage
Friday, 31 July 2015
M
Mr stevens8:26 PM
We live in Tewkesbury.we get BBC Midlands....news from walsaw,Stafford and such like.we want to receive more local news from BBC points west.if Now can we pick up broadcasts from the mendip transmitter. Incidentally, our relatives receive points west on freeview in Cheltenham (9miles away)
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M
MikeP11:21 PM
Mr Stevens
If you enter your post code into this site it will set up links to show whether your particular location in Tewkesbury can receive signals from the Mendip transmitter. However, it is a fairly long distance and it is possible that the signals will be too weak to get reliable reception.
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