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Full Freeview on the Stockland Hill (Devon, England) transmitter

first published this on - UK Free TV
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The symbol shows the location of the Stockland Hill (Devon, England) transmitter which serves 120,000 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 Stockland Hill (Devon, England) mast?

Stockland Hill transmitter - Stockland Hill transmitter: Possible effect on TV reception week commencing 04/12/2023 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 Stockland 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
C26+ (514.2MHz)463mDTG-50,000W
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
C23+ (490.2MHz)463mDTG-50,000W
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
C29+ (538.2MHz)463mDTG-50,000W
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
C25- (505.8MHz)463mDTG-825,000W
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 ITVBe +1, 59 ITV3 +1, 64 Blaze, 67 TRUE CRIME, 68 TRUE CRIME XTRA, 78 TCC, 81 Blaze +1, 89 ITV4 +1, 91 WildEarth, 209 Ketchup TV, 210 Ketchup Too, 211 YAAAS!, 267 Al Jazeera English, plus 35 others

 H -3dB
C22- (481.8MHz)463mDTG-825,000W
Channel icons
 Smithsonian Channel, 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 Christmas, 70 Quest +1, 74 Yesterday +1, 75 That's 90s, 233 Sky News, plus 11 others

 H -3dB
C28- (529.8MHz)463mDTG-825,000W
Channel icons
 Quest Red +1,  Classic Hits, 12 Quest, 25 W, 27 Yesterday, 34 GREAT! movies, 39 DMAX, 44 HGTV, 52 GREAT! christmas, 56 That's TV (UK), 61 GREAT! movies extra, 63 GREAT! christmas mix, 71 That’s 60s, 73 HobbyMaker, 82 Talking Pictures TV, 83 Together TV, 84 PBS America, 235 Al Jazeera Eng, plus 20 others

DTG-8 64QAM 8K 3/4 27.1Mb/s DVB-T MPEG2
H/V: aerial position (horizontal or vertical)

The Stockland Hill (Devon, England) mast is a public service broadcasting (PSB) transmitter, it does not provide these commercial (COM) channels: .

If you want to watch these channels, your aerial must point to one of the 80 Full service Freeview transmitters. For more information see the will there ever be more services on the Freeview Light transmitters? page.

Which BBC and ITV regional news can I watch from the Stockland Hill transmitter?

regional news image
BBC Spotlight 0.8m homes 2.9%
from Plymouth PL3 5BD, 86km west-southwest (239°)
to BBC South West region - 107 masts.
regional news image
ITV West Country News (West) 0.8m homes 2.9%
from Plymouth PL7 5BQ, 80km southwest (236°)
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?

BickleighTransposer15 km N Exeter25 homes
Freshwater C/pActive deflector2 km SE Bridport, Dorset250 homes (caravans)
Ladram BayTransposer15 km SE Exeter400 homes (caravans)

How will the Stockland Hill (Devon, 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 6 May 09 and 20 May 09.

How do the old analogue and currrent digital signal levels compare?

Analogue 1-4 250kW
BBCA, D3+4, BBCB(-7dB) 50kW
SDN, ARQA, ARQB(-10dB) 25kW
Mux 1*, Mux 2*, Mux A*, Mux B*(-17dB) 5kW
Mux C*, Mux D*(-20dB) 2.5kW

Which companies have run the Channel 3 services in the Stockland 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.

Thursday, 19 January 2012
Dave Lindsay

1:31 PM

Mark H: The thing is that St Thomas only relays the Public Service Broadcaster (PSB) channels which are BBC, ITV1, ITV2, C4, E4, More4, C5, HD services and some others.

So if you have these perfectly then your receiver is tuned correctly (i.e. to the signals coming from the transmitter to which your aerial faces).

The best commercial (COM) channels it will find are probably Stockland Hill, and hence why reception is poor.

For an explanation of why St Thomas doesn't relay the COMs, see here:

Will there ever be more services on the Freeview Light transmitters? | - independent free digital TV advice

Whether you can receive a stable signal from Stockland Hill with a suitable aerial is another question. Obviously from a signal strength point of view, St Thomas is probably the one to go for.

You might be high enough to get a signal from Stockland Hill. See here for a plot of the terrain. You have or aren't far off line of sight with it:

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

Be aware the COMs from Stockland Hill are at lower power than the PSBs so if you can't get the (weaker) COMs from it, then there's no benefit in moving away from St Thomas.

Until 18th April they are at 10kW when they will be increase to their final power of 25kW. The PSBs are at their final power now which is 50kW.

It might be best to wait until the power increase in April to get another aerial.

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Dave Lindsay's 5,724 posts GB flag
Mike Dimmick

2:06 PM

Dave Lindsay, Mark H: While the COM muxes at Stockland Hill will increase to final power in April, the prediction for Mark H actually goes down slightly. This is because Rowridge will be using the same frequencies at high power, from the same date. They are actually going to be using the same frequencies for the same services, but the transmitters are too far apart to use Single Frequency Network techniques, so they will just interfere with each other. (Crystal Palace will also be a problem, to a lesser extent.)

The likelihood is that for a number of people in your postcode, the COM multiplexes will be unreliable for some of the time. Careful siting of the aerial may find a reliable location - it's best to get an experienced installer to do this.

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Mike Dimmick's 2,486 posts GB flag
Dave Lindsay

6:06 PM

Mike Dimmick, Mark H: Rowridge will be transmitting its COMs in both polarisations, but the horizontal ones will be at 50kW whereas the verticals will be 200kW, same as its PSBs in both polarisations.

From Rowridge, only Ch22 has an offset and it is positive.

All the Stockland Hill COMs have negative offsets, which probably explains why Ch22- from Stockland is predicted as being better than the other two.

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Dave Lindsay's 5,724 posts GB flag
Friday, 20 January 2012
Mark H
9:02 AM

Dave Lindsay: I am actually at one of the highest points in Exeter with a clear line of sight to pretty much everything in the area.
Last night I decided to conduct a small experiment, I disconnected the large external aerial and plugged in a small internal aerial, just to see what would happen. I rescanned and got all the channels I had been missing, including Dave etc. I then plugged the exterior aerial back in, recanned and of course they were gone again.
Now, with this in mind, conventional wisdom says "just use that aerial then" which is fine, for my television, but when the very same aerial was plugged into a TV at the other side of the house, there were almost no channels found. With this in mind, it seems to be that the best course of action is to go up a ladder and try to realign the aerial.
Would you agree?

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Mark H's 2 posts GB flag
Dave Lindsay

9:48 AM

Mark H: Your current aerial may well be a Group B one (tuned to the middle of the band) but Stockland uses Group A channels. See here for an explanation of groups:

Aerials, TV Aerial and Digital Aerial

This is not to say that it won't work. See here for some example gain curves that show gain drops off below the group's channels:

Gain (curves), Again

Remember, if you do try realigning your aerial, then it won't be just a case of spinning it around; you will have to switch it from vertical to horizontal.

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Dave Lindsay's 5,724 posts GB flag
Dave Lindsay

10:46 AM

Mark H: If you are going to get another aerial, then have a look at ATV Sheffield. This page lists what they recommend for Stockland Hill:

Digital TV Transmitters Nationwide Page 2

If you get a good signal on the three COMs now at 10kW, then you should be fine at 25kW.

Check ITV3, Pick TV and Yesterday which is one service from each COM multiplex.

For a full list of services on each multiplex see here:

DTG :: DTT Services by Multiplex

I suggest that you check that you have the channels stored correctly. In particular, ensure that you don't have the two (or three) multiplexes from St Thomas instead of Stockland.

Channels used by Stockland are:

BBC A (BBC One etc) Ch26
D3&4 (ITV1 etc) Ch23
BBC B (HD services) Ch29
SDN (ITV3 etc) Ch25
Arq A (Pick TV etc) Ch22
Arq B (Yesterday etc) Ch28

On each of the above services, go to the signal strength screen and it should tell you the UHF channel number.

I should say that I'm not an aerial installer or expert in RF signal propagation. But common sense would suggest that if you can get the low-power COMs now with your set-top aerial, then you are in a good signal area.

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Dave Lindsay's 5,724 posts GB flag
Mark Fletcher

10:46 PM

Mark H,Exeter.If you decide to buy a new aerial and you decide to get the full package of programmes from the main Stockland Hill transmitter including the three COM multiplexes which is not broadcasted by your local relay,then as Stockland Hill is an all group A mast,you only need to purchase a new group A Yagi 18A,or X-Beam XB16A for slightly extra gain,but more important you will need to buy satellite grade co-ax copper-copper cable and brass co-ax plugs.As you stated earlier being on a higher ground area of Exeter,if you did decide to buy a new external group A aerial for the main Stockland Hill transmitter,if must be polarised horizontally mounted externally on a wall or on the roof,a chimney wall being ideal.

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Mark Fletcher's 673 posts GB flag
Mark's: mapM's Freeview map terrainM's terrain plot wavesM's frequency data M's Freeview Detailed Coverage
Friday, 3 February 2012
Ian Thomson
1:53 PM

I have 3 TVs running from one aerial with perfect reception from Stockland Hill. One of the 3 TVs is 4:3 running from a digi-box. All channels are in correct format with the exception of the stations from Mulitiplex PS B2 Ch23 where the format incorrectly narrows. This would appear to be a fault of the transmitter, rather than the box?!!

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Ian Thomson's 1 post GB flag

2:32 PM

Ian Thomson: It is more likely to be a fault with the box. Have you tried another Freeview box on the same set?

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Briantist's 38,907 posts GB flag
Monday, 5 March 2012
Transmitter engineering

10:31 AM

STOCKLAND HILL transmitter - Over the next week Stockland Hill main transmitter: TV (digital) Liable to interruption, Radio (analogue) working normally, Radio (digital) working normally. [DUK]

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Transmitter engineering's 146,829 posts xx flag
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