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Full Freeview on the Caradon Hill (Cornwall, England) transmitter

first published this on - UK Free TV
sa_streetviewGoogle Streetviewsa_gmapsGoogle mapsa_bingBing mapsa_gearthGoogle Earthsa_gps50.511,-4.437 or 50°30'38"N 4°26'14"Wsa_postcodePL14 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.

Are there any planned engineering works or unexpected transmitter faults on the Caradon Hill (Cornwall, England) mast?

Caradon Hill transmitter - Caradon Hill transmitter: Possible effect on TV reception week commencing 20/05/2024 Pixelation or flickering on some or all channels Digital tick

Choose from three options: ■ List by multiplex ■ List by channel number ■ List by channel name

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.

 H max
C28+ (530.2MHz)602mDTG-100,000W
Channel icons
1 BBC One (SD) South West, 2 BBC Two England, 9 BBC Four, 23 BBC Three, 201 CBBC, 202 CBeebies, 231 BBC News, 232 BBC Parliament, plus 17 others

 H max
C25+ (506.2MHz)602mDTG-100,000W
Channel icons
3 ITV 1 (SD) (West Country), 4 Channel 4 (SD) South ads, 5 Channel 5, 6 ITV 2, 10 ITV3, 13 E4, 14 Film4, 15 Channel 4 +1 South ads, 18 More4, 26 ITV4, 28 ITVBe, 30 E4 +1, 35 ITV1 +1 (West Country),

 H max
C22+ (482.2MHz)602mDTG-100,000W
Channel icons
46 5SELECT, 101 BBC One HD South West, 102 BBC Two HD England, 103 ITV 1 HD (ITV Meridian Southampton), 104 Channel 4 HD South ads, 105 Channel 5 HD, 106 BBC Four HD, 107 BBC Three HD, 204 CBBC HD, 205 CBeebies HD, plus 1 others

 H -3dB
C21+ (474.2MHz)579mDTG-850,000W
Channel icons
20 Drama, 21 5USA, 29 ITV2 +1, 32 5STAR, 33 5Action, 38 Channel 5 +1, 41 Legend, 42 GREAT! action, 57 Dave ja vu, 58 ITV3 +1, 59 ITV4 +1, 64 Blaze, 67 TRUE CRIME, 68 TRUE CRIME XTRA, 78 TCC, 81 Blaze +1, 83 Together TV, 91 WildEarth, 93 ITVBe +1, 209 Ketchup TV, 210 Ketchup Too, 211 YAAAS!, 267 Al Jazeera English, plus 30 others

 H -3dB
C24- (497.8MHz)579mDTG-850,000W
Channel icons
11 Sky Mix, 17 Really, 19 Dave, 31 E4 Extra, 36 Sky Arts, 40 Quest Red, 43 Food Network, 47 Film4 +1, 48 Challenge, 49 4seven, 60 Drama +1, 65 That's TV 2, 70 Quest +1, 74 Yesterday +1, 75 That's 90s, 233 Sky News, plus 11 others

 H -3dB
C27- (521.8MHz)579mDTG-850,000W
Channel icons
12 Quest, 25 W, 27 Yesterday, 34 GREAT! movies, 39 DMAX, 44 HGTV, 52 GREAT! romance, 56 That's TV (UK), 63 GREAT! romance mix, 71 That’s 60s, 73 HobbyMaker, 82 Talking Pictures TV, 84 PBS America, 235 Al Jazeera Eng, plus 18 others

DTG-8 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?

regional news image
BBC Spotlight 0.8m homes 2.9%
from Plymouth PL3 5BD, 26km east-southeast (123°)
to BBC South West region - 107 masts.
regional news image
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?

BarleycombeActive deflector25 km E Plymouth3 homes
ParracombeTransposer17 km NE Barnstaple80 homes

How will the Caradon Hill (Cornwall, England) transmission frequencies change over time?

1961-80s1984-971997-981998-20092009-1327 Mar 2019

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

Which companies have run the Channel 3 services in the Caradon Hill transmitter area

Apr 1961-Dec 1981Westward Television
Jan 1982-Dec 1992Television South West (TSW)
Jan 1993-Feb 2004Westcountry Television
Feb 2004-Dec 2014ITV plc
Feb 1983-Dec 1992TV-am•
Jan 1993-Sep 2010GMTV•
Sep 2010-Dec 2014ITV Daybreak•
• Breakfast ◊ Weekends ♦ Friday night and weekends † Weekdays only.

Friday, 6 May 2016
Christopher Wilton
9:26 PM

Christopher Wilton: full post code is PL10 1LG

link to this comment
Christopher Wilton's 8 posts GB flag
Christopher's: mapC's Freeview map terrainC's terrain plot wavesC's frequency data C's Freeview Detailed Coverage
Saturday, 7 May 2016

10:40 AM

Christopher Wilton:

Thanks for the post code, useful. It seems that your reception of the Arqa A Multiplex (also known as Com 5) is causing problems, but I assume that all the other services are as normal?

Com 5 carries several TV services, a look near the top of this page shows a number of programmes on that multiplex. Do you get any of these on Com 5? What is the signal strength on channel 24 and what is it on channels 21 and 27?

Sometimes a problem with the aerial feeder cables or connection can give rise to selective reception, seeming fine on some channels but poor on others. So a careful check that all the cables and connections are in good order would help. If in doubt, you can replace the flylead from the wall socket to the TV, they are inexpensive and are known to sometimes be the cause of problems.

Further advice depending on feedback.

link to this comment
MikeP's 3,056 posts GB flag
MikeP's: mapM's Freeview map terrainM's terrain plot wavesM's frequency data M's Freeview Detailed Coverage
Christopher Wilton
2:26 PM

MikeP: please explain how I do feedback, sorry I am very new to this site.
Ch21 no signal
Ch24 good signal now, signal quality none
Ch27 strong signal, good quality.
Had new aerial, aerial booster and wiring less than 12 months ago.
Signal on com 5 always seems to drop when we get high pressure.
Thanks for all your help so far. As soon as I know how to leave feedback, I shall do so. And it will be good feedback.

link to this comment
Christopher Wilton's 8 posts GB flag

3:11 PM

Christopher Wilton: You just provided feedback, by simply replying!

On Ch24 and 27, what do you mean by 'good signal? Do you have an actual number or percentage? 'Good' or 'strong' means different things to different people.

I think MikeP's idea of swapping out the aerial lead is a great one - very cheap, and easy to do, and may cure the problem. If nothing else, it ticks something off the list. Try it.

The booster sounds odd for a transmitter only 26km away with a clear signal path - are you perhaps getting too high a signal because of it. Can you switch it off?

link to this comment
MikeB's 2,579 posts GB flag
MikeB's: mapM's Freeview map terrainM's terrain plot wavesM's frequency data M's Freeview Detailed Coverage
Christopher Wilton
6:33 PM

MikeB: thanks for the reply.
The freeview manual tuning function has a bar for signal strength, which shows about 60-70%, but also has a signal quality which says none, poor, medium, good or very good.
Ch24 shows about 60-70% on the bar, but quality says none. It's hilly around here, so I am not totally sure we have direct line of sight.
Thank you for all the help.

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Christopher Wilton's 8 posts GB flag
Sunday, 8 May 2016

6:39 PM

Christopher Wilton: 60-70% should be fine, so thats odd. You can check the signal path yourself by putting in your postcode when you comment, and lots of links below your comment will appear, including terrain plot.

I think this is one for the signal gurus!

link to this comment
MikeB's 2,579 posts GB flag
Richard Dunn
9:48 PM

No reception / signal at all tonight (Sunday 8th), none last night either - after patchy pixellation and short period of distorted image on BBC1 (which was the only one that actually tried to appear). All that I get is "Status" "No signal" or Status "no video or audio". I'm in a valley on the n side of Kit Hill. Relatively recent aerial adjustment by Aerial Masters showed good signal response and nothing has changed here since. Roof aerial, PL17 8HG. Freeview. Suggestions?

link to this comment
Richard Dunn's 1 post GB flag
Richard's: mapR's Freeview map terrainR's terrain plot wavesR's frequency data R's Freeview Detailed Coverage

11:34 PM

Richard Dunn: Although nothing of a physical nature has changed at your end of the equation, the fact of your reception from the Caradon Hill transmitter being of a non line of sight nature, i.e: the Megalithia terrain indicator showing a sizeable obstruction to the signal path from the transmitter at approximately 1 mile prior to your location, making reception vulnerable to slight changes in atmospheric conditions, something which occurs most of the time with no effects whatsoever being noticed in most areas, the exception being where signals are only received via diffraction (signal bending) such as applicable to your particular location.

Needless to say, nothing can really be done to alleviate this type of problem.

PS: You can view the signal path problem referred to by opening the undermentioned link.

Terrain between ( m a.g.l.) and (antenna m a.g.l.) - Optimising UK DTT Freeview and Radio aerial location

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jb38's 7,179 posts GB flag
Tuesday, 10 May 2016
Christopher Wilton
11:54 PM

Thanks for all the comments and help guys. Pick has now returned via a retune and ch24 is there but poor signal st
No changes to hardware, so I can only guess it's all atmospheric.

link to this comment
Christopher Wilton's 8 posts GB flag
Wednesday, 11 May 2016

6:05 PM

Christopher Wilton: Why would that particular mux be hit, and why for so long? I suspect you might have a dodgy wire somewhere.

link to this comment
MikeB's 2,579 posts GB flag
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