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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Wednesday, 28 March 2012
S
Simon3:20 PM
Tewkesbury
MENDIP 28th March..... ARQ A has moved to ch56 and ARQ B has moved to ch52. All 6 muxes are the same level now. NB ARQ A & ARQ both have FEC=3/4.
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Simon's: mapS's Freeview map terrainS's terrain plot wavesS's frequency data S's Freeview Detailed Coverage
T
Tracy Gill3:49 PM
Shepton Mallet
retuned at 1pm and now have ALL channels again. Brilliant.
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Tracy's: mapT's Freeview map terrainT's terrain plot wavesT's frequency data T's Freeview Detailed Coverage
M
Malcolm Brooks5:04 PM
Have retuned my TV but am now missing transponder 56 from Mendip - all the others are picking up the correct channels aside from 56
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K
Keith S5:25 PM
My experience of retuning a HUMAX PVR may be of some help to others whose retuning efforts results in 'loss of TV channels'.
After MUX changes [ie. as of Wed 28 March on MENDIP] - the PVR does not 'delete to old channel info', and even though the new MUX channels are 'correctly tuned' the PVR remembers the 'old info' - ie. selecting FREEVIEW 82 SKY NEWS - results in a 'no or weak signal' display, etc ad infinitum!!
The solution: merely disconnect the antenna, do an automatic retune [magically this deletes old tuning info], then reconnect the antenna and perform an auto or manual retune. [The above is not in the PVR manual [or if it is I couldn't find it]]
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J
jb385:28 PM
Malcolm Brooks: You should try manually tuning it in, that is if your TV allows manual tuning to be carried out as some devices don't.
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N
Nige9:05 PM
Bristol
Are the channel lists for ArqA and ArqB above correct? I am seeing them on the other way around; Yesterday on ArqA and PickTV on ArqB.
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Nige's: mapN's Freeview map terrainN's terrain plot wavesN's frequency data N's Freeview Detailed Coverage
N
Nige9:11 PM
Bristol
... or the frequencies above are wrong.
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Nige's: mapN's Freeview map terrainN's terrain plot wavesN's frequency data N's Freeview Detailed Coverage
C
Chris.SE10:22 PM
Briantist: Could you please correct the listings above both in the MUX listings and in the Transmission frequencies After Wednesday 7th April 2010 sections -
COM5/Arq A is on C56 and COM6/Arq B is on C52.
The After switchover frequency notes (lower down) are correct however.
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C
Chris.SE10:37 PM
Everyone, to clarify Arq A (COM5) moved from C67 to C56 today. Arq B was and remains on C52.
Both these MUXes also had a power up as did SDN (C48).
All Muxes from Mendip are now on 100kW.
For the more technical - there have been Mode changes for Arq B and SDN. All COM muxes at Mendip are now using FEC 3/4.
In 2013 (exact date TBC) BBCA/PSB1 Mendip moves from C61 to C49. This is NOT part of DSO, but clearance of the 800Mhz band (C61 and above)for 4G Mobile services.
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Thursday, 29 March 2012
M
Malcolm Brooks4:19 PM
Bristol
Hi JB38
TV allows for manual tune - all other frequencies are 100% - Just 56 that shows a big fat zero. Mendip shows that there is some maintenance going on for one week leaving a weak signal, maybe that is it?
link to this comment |
Malcolm's: mapM's Freeview map terrainM's terrain plot wavesM's frequency data M's Freeview Detailed Coverage
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