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 AM/FM 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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Saturday, 29 October 2011
Friday, 13 January 2012
Hello Brian.
We`ve had a customer buying a Yagi18K for Caradon Hill because you say Caradon is a K group, but since the switchover Caradon is an A group ! As it happens the 18K worked fine anyway (he reported it outperformed his existing Tri Boom) but for other people in poorer signal areas an A group would work that much better.
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Sunday, 15 January 2012
Justin Smith: Actually, it was an Ofcom code... I will change the page to make the transmitter A.
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Wednesday, 18 January 2012
Friday, 20 January 2012
Tuesday, 24 January 2012
Normally our reception is fine, but last Saturday morning happened to record 2 programmes starting at 10am - More 4 on a Humax HDR-FOX T2 and BBC1 on a Sony RDR-HXD1095. Both suffered bad pixellation and complete break-up with total loss of signal temporarily. I think it was all before 10.30am.We have an external aerial and diagnostics usually shows signal strength 60-70% with 100% quality on all channels. I was not around at the time to observe anything unusual or check any other channels, but no electrical equipment was running in our house at the time other than that we always use.
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Nick's: mapN's Freeview map terrainN's terrain plot wavesN's frequency data N's Freeview Detailed Coverage
Thursday, 26 January 2012
Nick Ralph: I would have a look at Freeview intermittent interference | ukfree.tv - independent free digital TV advice if the problem happens from time to time.
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Wednesday, 28 March 2012
A
Alan Bramwell12:52 PM
I am based at Perran Sands Holiday Park just to teh East of Perranporth and experience interrupted intermittent reception on some channels. My aerial appears directe dat the nearby Perranporth transmitter. Is this correct or should I point towards Caradon?
Can you advise the best aerial type for my location.
Many thanks
Alan Bramwell
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Alan Bramwell: It's very difficult to say with absolute certainty, my trepidation being brought about due to the fact that you are probably low down, what with being near sea level and your aerial possibly being just above the height of a caravan. You may also have other buildings and trees around you that might reduce your chances.
However, you should be aware that the transmitter at Perranporth is a Public Service one only. The Public Service Broadcaster ("PSB") multiplexes carry BBC, ITV1, ITV2, Channel 4, E4, More 4, Channel 5, HD services and a few others. Therefore, if your receiver has tuned in the Commercial ("COM") multiplexes you will have ITV3, Pick TV and Yesterday. Don't be surprised if they're poor because they are being picked up from a different transmitter.
For Perranporth your aerial should be vertical. If it is horizontal then that could be your problem.
It is also worth confirming that the receiver is tuned correctly. For Perranporth BBC One is on C46, ITV1 on C43 and HD services on C50. This information is usually given on the signal strength screen.
As for which other transmitter might be worthy of a shot, Redruth is perhaps the best at 11 miles, although the fact that you are low down will reduce your chances. Redruth is a full Freeview transmitter, albeit that the COMs are at lower power than the PSBs.
The existance of the Perranporth transmitter suggests that the area may have difficulties in picking up from Redruth. It is a relay of Redruth rather than Caradon Hill.
Caradon Hill at 33 miles is predicted as being almost as good as Redruth. It is in a different direction and if you have a clearer view in that direction then that may be better than Redruth. Again, Caradon's COMs are lower power than its PSBs. The power of all its transmitters are greater than that of the closer Redruth's.
For Redruth or Caradon you need your aerial horizontal. If your aerial is a wideband one, then you will be OK (albeit that widebands are less sensitive to lower frequencies as used by Caradon). If your aerial is a Group B one then you will only be able to use it on Redruth and not Caradon. This is because Redruth uses Group B channels, just as Perranporth does.
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Tuesday, 12 June 2012
M
michael12:58 AM
Is the nature of "engineering work" a state secret? In the age of freedom of information, brief technical detail of the work to be untertaken would be most welcome - not least so that we know that blocking and drop-outs are only temporary.
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