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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.

This transmitter has no current reported problems

The BBC and Digital UK report there are no faults or engineering work on the Caradon Hill (Cornwall, England) transmitter.

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

MuxH/VFrequencyHeightModeWatts
PSB1
BBCA
 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, 250 BBC Red Button, plus 16 others

PSB2
D3+4
 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, 30 E4 +1, 35 ITV1 +1 (West Country),

PSB3
BBCB
 H max
C22+ (482.2MHz)602mDTG-100,000W
Channel icons
56 5SELECT, 101 BBC One HD (England no regional news), 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, 109 BBC Three HD, 204 CBBC HD, 205 CBeebies HD, plus 1 others

COM4
SDN
 H -3dB
C21+ (474.2MHz)579mDTG-850,000W
Channel icons
20 Drama, 21 5USA, 29 ITV2 +1, 32 5STAR, 33 5Action, 41 Legend, 42 GREAT! movies action, 46 Channel 5 +1, 58 ITVBe +1, 59 ITV3 +1, 64 Blaze, 67 CBS Reality, 74 Dave ja vu, 78 TCC, 81 Blaze +1, 89 ITV4 +1, 203 CITV, 208 Pop Player, 209 Ketchup TV, 210 Ketchup Too, 211 YAAAS!, plus 15 others

COM5
ArqA
 H -3dB
C24- (497.8MHz)579mDTG-850,000W
Channel icons
11 Sky Arts, 17 Really, 19 Dave, 31 E4 Extra, 36 pick, 40 Quest Red, 43 Food Network, 47 Film4 +1, 48 Challenge, 49 4seven, 57 Smithsonian Channel, 60 Drama +1, 70 Quest +1, 75 Yesterday +1, 83 Together TV, 233 Sky News, plus 9 others

COM6
ArqB
 H -3dB
C27- (521.8MHz)579mDTG-850,000W
Channel icons
12 Quest, 25 W, 27 Yesterday, 34 GREAT! movies, 39 DMAX, 44 HGTV, 71 Quest Red +1, 73 HobbyMaker, 82 Talking Pictures TV, 84 PBS America, 88 Classic Hits, 235 Al Jazeera Eng, plus 19 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 southeast (124°)
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
VHFA K TA K TA K TA K TA K T
C12ITVwaves
C21+SDNSDN
C22BBC1wavesBBC1wavesBBC1waves+BBCBBBCB
C24-ArqAArqA
C25ITVwavesITVwavesITVwaves+D3+4D3+4
C27-ArqBArqB
C28BBC2wavesBBC2wavesBBC2waves+BBCABBCA
C30_local_local
C31com7
C32C4wavesC4wavesC4waves
C37com8

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.

Comments
Saturday, 7 February 2015
Transmitter engineering
sentiment_very_satisfiedOwner

4:31 AM

CARADON HILL transmitter - DAB: BBC National DAB Radio Off Air from 07:54 on 05 Feb to 08:13 on 05 Feb. [BBC]

link to this comment
Transmitter engineering's 138,958 posts xx
Sunday, 8 March 2015
S
Sarah Lyne
9:17 AM
Helston

TR12 6SZ, with roof top aerial. Yesterday 7th March we were unable to tube into any Freeview channel or any DAB radio station. Were there any works being carried out to the transmitter?


link to this comment
Sarah Lyne's 1 post GB
Wednesday, 11 March 2015
A
Ash
3:01 PM
Plymouth

Why has C22 gone to 0% signal and very broken stream? All other channels are fine

link to this comment
Ash's 3 posts GB
Dave Lindsay
sentiment_very_satisfiedPlatinum

11:52 PM

Ash: Too much signal, maybe?

Freeview signals: too much of a good thing is bad for you

link to this comment
Dave Lindsay's 5,724 posts GB
Thursday, 12 March 2015
A
Ash
6:01 PM
Plymouth

Hi thanks can you help me figure out the problem? HD and all other channels have worked fine for over a year but suddenly dropped off the other day, i have realised it is both c22 and c31 are not working - all others are working fine

c21 18% quality / 70% str / 476 bit error rate

c22 0% quality / 0-92% strength is fluctuates madly / 2000 bit error rate

c24 40% quality / 58% signal / 20 bit error rate
c25 100 quality / 100% str / 0 bit error rate
c27 100% quality / 54% str / 0 bit error rate
c28 100% quality / 90% str / 0 bit error rate

c31 0% quality / 30% str / 2000 bit error rate

link to this comment
Ash's 3 posts GB
Dave Lindsay
sentiment_very_satisfiedPlatinum

6:39 PM

Ash: First of all, the notion of too much signal: This results in signal levels repeatedly dipping down, and can appear to the user as if there's too little signal, this being because the tuner is overwhelmed. Think if a bright light was shone in your eye; you'd automatically shut your eye and so even though the light is brighter you will "see" less light.

Now to the terrain plot:


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


You may be able to see the top of the transmitter, "just" or "almost", this qualification being because it would appear that the terrain might be in the way or objects on the ground could be. If you click the "view map of" under the plot you will be given a line between the two points. The satellite image of Avery Way at Carkeel looks interesting. It's where Waitrose is and Avery Way looks like it could be added to in the future. Has this just happened? The OS map indicates a wind turbine on that industrial estate. Has another one been added?

Streetmap - Maps and directions for the whole of Great Britain

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Dave Lindsay's 5,724 posts GB
A
Ash
8:34 PM

as far as i know no new buildings have gone up at Avery Way and I have no idea about wind turbines

would my signal be too high considering on many other channels it is stable and between 50 and 100%?

tbh it is confusing, i would rather not call out a specialist but i fear that may be the only option

link to this comment
Ash's 4 posts GB
Dave Lindsay
sentiment_very_satisfiedPlatinum

8:43 PM

Ash: Well that is the thing. Why is there such a marked difference in reported strengths when you would think you reside in a very good signal area?

The other question to rule out is the possibility that a 4G base station has started up and is operating in the 800MHz band (C61 upwards). The organisation tasked with issues relating to television reception issues as a result is "at800".

I would give them a call and see if this could be the cause of your difficulty:

Contact us | Advice or general enquiries | at800

If it is then they will send out one filter per address.

link to this comment
Dave Lindsay's 5,724 posts GB
J
jb38
sentiment_very_satisfiedPlatinum

9:05 PM

Ash : Although many somewhat loathe having to resort to this measure, but your best policy would to make one or two enquiries with others in your immediate vicinity for the purpose of determining if the problem is also being experienced by other viewers, or, that its confined purely to your own installation.

Because if others are also being affected, then the problem is totally outwith your control.


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jb38's 7,179 posts GB
Friday, 13 March 2015
A
Ash
6:01 PM

Today I checked and it seems both hd channels have now come back on

all 7 channels have similar readings of

quality 100%, str 92% error 0%

So it must of been something external

Thank you though for you time and I bookmarked the website

link to this comment
Ash's 4 posts GB
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