Full Freeview on the Caradon Hill (Cornwall, England) transmitter
Brian Butterworth first published this on - UK Free TV
Google Streetview | Google map | Bing map | Google Earth | 50.511,-4.437 or 50°30'38"N 4°26'14"W | PL14 5LT |
The symbol shows the location of the Caradon Hill (Cornwall, England) transmitter which serves 180,000 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
H/V: aerial position (horizontal or vertical)
Which Freeview channels does the Caradon Hill 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
H/V: aerial position (horizontal or vertical)
Which BBC and ITV regional news can I watch from the Caradon Hill transmitter?
BBC Spotlight 0.8m homes 2.9%
from Plymouth PL3 5BD, 26km east-southeast (123°)
to BBC South West region - 107 masts.
ITV West Country News (West) 0.8m homes 2.9%
from Plymouth PL7 5BQ, 32km east-southeast (116°)
to ITV West Country region - 107 masts.
All of lunch, weekend and 50% evening news is shared with West Country (East)
Are there any self-help relays?
Barleycombe | Active deflector | 25 km E Plymouth | 3 homes |
Parracombe | Transposer | 17 km NE Barnstaple | 80 homes |
How will the Caradon Hill (Cornwall, England) transmission frequencies change over time?
1961-80s | 1984-97 | 1997-98 | 1998-2009 | 2009-13 | 27 Mar 2019 | ||||
VHF | A K T | A K T | A K T | A K T | A K T | ||||
C12 | ITVwaves | ||||||||
C21 | +SDN | SDN | |||||||
C22 | BBC1waves | BBC1waves | BBC1waves | +BBCB | BBCB | ||||
C24 | -ArqA | ArqA | |||||||
C25 | ITVwaves | ITVwaves | ITVwaves | +D3+4 | D3+4 | ||||
C27 | -ArqB | ArqB | |||||||
C28 | BBC2waves | BBC2waves | BBC2waves | +BBCA | BBCA | ||||
C30 | _local | _local | |||||||
C31 | com7 | ||||||||
C32 | C4waves | C4waves | C4waves | ||||||
C37 | com8 |
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 12 Aug 09 and 9 Sep 09.
How do the old analogue and currrent digital signal levels compare?
Analogue 1-4 | 500kW | |
BBCA, D3+4, BBCB | (-7dB) 100kW | |
SDN, ARQA, ARQB | (-10dB) 50kW | |
com7 | (-16.3dB) 11.6kW | |
Mux 1* | (-20dB) 5kW | |
Mux 2*, Mux A*, Mux B*, Mux C*, Mux D* | (-21dB) 4kW | |
com8 | (-24.2dB) 1.9kW |
Local transmitter maps
Caradon Hill Freeview Caradon Hill DAB Caradon Hill TV region BBC South West West CountryWhich companies have run the Channel 3 services in the Caradon Hill transmitter area
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Wednesday, 11 October 2023
J
Jeanette Phillips 5:18 PM
Falmouth
Hi Chris . My Ariel is outside on the side of the roof. My husband said it is pointing 45 degrees North east. My full postcode is Tr11 5DB. Everyone's is pointing the same way. I always thought the Redruth one would be nearer.
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Jeanette's: ...
Thursday, 12 October 2023
C
Chris.SE4:11 AM
Jeanette Phillips :
Hi. The precise compass bearing is supposedly 51 degrees which is 6 degrees E of NE, not only well within the beamwidth of your aerial but may not be the optimum in a specific location due to the way signals propagate. A few degrees either way can often give the best results. But Caradon Hill is 62km away and although more powerful than Redruth (compass bearing 306 degrees almost NW) which is only 12km away, Caradon Hill is predicted to give quite variable reception across your postcode, whereas predictions by both the Freeview and BBC checkers for Redruth are much better.
However, predictions are that, a quick check of the local terrain will give a better feel for this, and we'll post further comment on that in due course.
Everyone's aerials pointing the same way may be for historic reasons, I'll see if I can find any information.
Do you know how old (roughly) your aerial is? Has it been changed since DSO (Digital Switch Over) ~10 years ago?
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C
Chris.SE7:41 AM
Jeanette Phillips :
Hmm, I wonder if your aerial is a wideband but far better a Group K which it might be if replaced recently - Group K is in effect the new wideband as it covers all channels upto C48 and so give some protection from Mobile mast interference that may use/start using the 700MHz band above C48.
If either, then re-orientating it for Redruth might be worth a try, I say might because despite the predicted reception, there are hills in the way. A professional installer with a signal strength meter should be capable of checking how good or not it is, especially those Commercial multiplexes COMs 4/5/6, (SDN/ArqA/ArqB), otherwise the only guidance is what your set tells you.
If it's an older aerial it could be a Group A (might have red plastic bungs in the ends of the main bar) which wouldn't receive the higher UHF channels used by Redruth so would be a waste of time - you need a Group K (as an aside Group A would give some protection from mobile band interference).
Now, the hills in the way (on the line of sight) are obviously the one you are on (wow good views S but not in the direction of Redruth!) then about 1&1/2 to 2km out there is a more significant one. Signals do "bend" over hills but it weakens them, a huge hill would mean zero signal.
Are there any aerials in your road pointing at Redruth, if so, ask them about their reception.
There's also a hill on the line of sight to Caradon Hill, but it's quite small. It may have been in the analogue days you could more easily get ghost free/minimal ghosting from Caradon Hill but not Redruth, I can't find any definitive information on that.
As far as mobile interference is concerned, I note you do have a few masts close by, mainly in the general direction of Caradon Hill. If it became a problem then https://restoretv.uk are the people to deal with it, they can supply free filters (or in worst case instal a new aerial f.o.c). I note the website says they haven't sent postcards to your postcode but I've come across cases where they haven't and there was still a problem!!
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Monday, 16 October 2023
Transmitter engineering
10:47 AM
10:47 AM
Caradon Hill transmitter - Caradon Hill transmitter: Possible effect on TV reception week commencing 16/10/2023 Pixelation or flickering on some or all channels [DUK]
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Monday, 23 October 2023
Transmitter engineering
5:10 AM
5:10 AM
Caradon Hill transmitter - Caradon Hill transmitter: Possible effect on TV reception week commencing 23/10/2023 Pixelation or flickering on some or all channels [DUK]
link to this comment |
Monday, 30 October 2023
Transmitter engineering
5:11 AM
5:11 AM
Caradon Hill transmitter - Caradon Hill transmitter: Possible effect on TV reception week commencing 30/10/2023 Pixelation or flickering on some or all channels [DUK]
link to this comment |
Transmitter engineering
5:11 AM
5:11 AM
Caradon Hill transmitter - Caradon Hill transmitter: Possible effect on TV reception week commencing 30/10/2023 Pixelation or flickering on some or all channels [DUK]
link to this comment |
Monday, 6 November 2023
Transmitter engineering
5:10 AM
5:10 AM
Caradon Hill transmitter - Caradon Hill transmitter: Possible effect on TV reception week commencing 06/11/2023 Pixelation or flickering on some or all channels [DUK]
link to this comment |
Transmitter engineering
5:10 AM
5:10 AM
Caradon Hill transmitter - Caradon Hill transmitter: Possible effect on TV reception week commencing 06/11/2023 Pixelation or flickering on some or all channels [DUK]
link to this comment |
Monday, 29 January 2024
Transmitter engineering
10:49 AM
10:49 AM
Caradon Hill transmitter - Caradon Hill transmitter: Possible effect on TV reception week commencing 29/01/2024 Pixelation or flickering on some or all channels [DUK]
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