Full Freeview on the Mendip (Somerset, England) transmitter
 | 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.
Are there any planned engineering works or unexpected transmitter faults on the Mendip (Somerset, England) mast?
Mendip transmitter - Mendip transmitter: Possible effect on TV reception week commencing 11/11/2024 Pixelation or flickering on some or all channels 
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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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Monday, 13 May 2013
Pete Green: I suspect that this the "no analogue radio" bit might be a bug in the program that takes the information from its source. I have e-mailed the site owner to make him aware of it.
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J
jb388:06 PM
Pete Green: Analogue is referring to its FM transmissions.
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Friday, 17 May 2013
P
Pete Green10:58 AM
Weston-super-mare
Dave Lindsay
Your e-mail seemed to have worked. Analogue now chaged to Digital.Thank you.
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Pete's: mapP's Freeview map terrainP's terrain plot wavesP's frequency data P's Freeview Detailed Coverage
Pete Green: The site owner said it was a bug and that it has been fixed.
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Friday, 24 May 2013
D
Dave10:34 PM
ITV HD from Mendip, and in fact from all West and West Country transmitters, is ITV Central West HD not Meridian South HD as stated in these Pages.
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Tuesday, 28 May 2013
C
Chris Sharp5:23 PM
Chepstow
Hi, I have a 26" Philips LCD TV and I am having problems with all BBC channels dropping out necessitating a retune. This possibly happened after a Digital TV Retune several weeks ago. About the same time I started using the HDMI port for Apple TV.
My work around for this frequent drop out is to manually retune on Frequency 698000 and 22 channels come back and work for a short time. The BBC channels just drop out after a while of watching say Channel 4. The Channel 4 screen goes blank but you get 10 seconds or so of sound and then it resets itself OK but any BBC channel is then lost the screen says No signal. On retuning watching a BBC channel can sometimes drop out or there is no problem for it stay stable hours.
I have followed the Freeview reset procedure but this had no effect.
I have contacted Philips and they say the problem is that This TV got a MPEG 2 tuner which is not compatible with current digital signal. The current digital standard stands for DVBT2 and your Tuner is DVBT. Unfortunately the modulation makes the difference as you can not keep your channels on TV's memory. The TV's built in tuner is not compatible after digital switchover, so what we recommend to do is to get a external freeview set-top box in order to receive channels properly.
From investigating the different coding of the multiplexes MPEG 4 is only used on HD, and all the rest of the multiplexes including BBC (non HD) are all MPEG 2. Any ideas what is going on?
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Chris's: mapC's Freeview map terrainC's terrain plot wavesC's frequency data C's Freeview Detailed Coverage
M
MikeB6:29 PM
Peterborough
Chris Sharp: I think what they are trying to say is that your Philips is a little old (a 26in Philips with one HDMI is perhaps seven years old or more(?), and the tuner just wont work any more. It happened a couple of times with customers following digital switchover, and our advice was exactly the same as that which Philips gave you - buy an external digibox.
Since you have one HDMI, you could use it for an HD PVR/digibox (and if you want to use Apple TV as well, there are HDMI switches available for less than £10), or just use scart. In the longer term, perhaps an upgrade to a newer TV.
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MikeB's: mapM's Freeview map terrainM's terrain plot wavesM's frequency data M's Freeview Detailed Coverage
Chris Sharp: My thoughts on this as a technical bod is that there may be some remnant of the previous set-up still in the memory. You know that the set worked fine before the change of channel (frequency) so it is known to work with the post-switchover signals.
Here are some things I can think of to go through:
Is there some sort of factory reset or hard reset?
Can you try running the automatic tuning scan through with the aerial unpluged? If this apparently 'blanks' what's already stored then run it through again with the aerial plugged in.
Another thing to try is running the tuning scan through but having the aerial unplugged when it scans C49, so as not to have BBC standard definition services stored but so as to get at least one multiplex stored. Having powered it off, checked that everything that was stored is still stored try adding C49 (698MHz).
Can you tune in PSB1 (BBC standard definition) from the Chepstow relay transmitter on C24 (498MHz)? Having done this, in an effort to 'flush-out' whatever is apparently stuck in the memory and causing your issue, try retuning to Mendip.
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I think that Philips has got the wrong end of the stick. DVB-T2 is the mode used for Freeview HD. It can receive DVB-T whioch is the mode used for standard definition.
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M
Michael10:00 PM
Chris: Presumably you have had no problems up until the March 27th retune - if so then clearly it is compatible with the post-DSO signal - Philips talking out of their arse!
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M
MikeB10:18 PM
Chris - whats the model number? There is a small list here Obsolete Freeview Receiver List of some TV's with obsolete tuners (2k rather than 8k), although Michael has an excellent point - if was working up to a couple of weeks ago, whats changed?
However, if its going to be a complete faff to get it to work, then someones cast-off digibox is the quickest and easiest way to keep the set going. (PE12QN)
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