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Full Freeview on the Sandy Heath (Central Bedfordshire, England) transmitter

first published this on - UK Free TV
sa_streetviewGoogle Streetviewsa_gmapsGoogle mapsa_bingBing mapsa_gearthGoogle Earthsa_gps52.130,-0.242 or 52°7'47"N 0°14'33"Wsa_postcodeSG19 2NH


The symbol shows the location of the Sandy Heath (Central Bedfordshire, England) transmitter which serves 920,000 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 Sandy Heath (Central Bedfordshire, England) mast?

Sandy Heath transmitter - Sandy Heath transmitter: Possible effect on TV reception week commencing 08/04/2024 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 Sandy Heath 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
C27 (522.0MHz)291mDTG-180,000W
Channel icons
1 BBC One (SD) Cambridge, 2 BBC Two England, 9 BBC Four, 23 BBC Three, 201 CBBC, 202 CBeebies, 231 BBC News, 232 BBC Parliament, plus 16 others

 H max
C24 (498.0MHz)291mDTG-180,000W
Channel icons
3 ITV 1 (SD) (Anglia (West micro region)), 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 (Anglia east),

 H max
C21+ (474.2MHz)291mDTG-180,000W
Channel icons
46 5SELECT, 101 BBC One HD Cambridge, 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 -0.2dB
C33 (570.0MHz)291mDTG-8170,000W
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, 83 Together TV, 89 ITV4 +1, 91 WildEarth, 209 Ketchup TV, 210 Ketchup Too, 211 YAAAS!, 267 Al Jazeera English, plus 30 others

 H -0.2dB
C36 (594.0MHz)289mDTG-8170,000W
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 -0.2dB
C48 (690.0MHz)289mDTG-8170,000W
Channel icons
12 Quest, 25 W, 27 Yesterday, 34 GREAT! movies, 39 DMAX, 44 HGTV, 52 GREAT! romance, 56 That's TV (UK), 61 GREAT! movies extra, 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 Sandy Heath transmitter?

regional news image
BBC Look East (West) 1.0m homes 3.7%
from Cambridge CB4 0WZ, 29km east-northeast (65°)
to BBC Cambridge region - 4 masts.
70% of BBC East (East) and BBC East (West) is shared output
regional news image
ITV Anglia News 1.0m homes 3.7%
from Norwich NR1 3JG, 119km east-northeast (60°)
to ITV Anglia (West) region - 5 masts.
All of lunch, weekend and 80% evening news is shared with Anglia (East)

How will the Sandy Heath (Central Bedfordshire, England) transmission frequencies change over time?

1965-80s1984-971997-981998-20112011-1312 Feb 2020

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 30 Mar 11 and 13 Apr 11.

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

Analogue 1-4 1000kW
BBCA, D3+4, BBCB(-7.4dB) 180kW
SDN, ARQA, ARQB(-7.7dB) 170kW
com7(-13dB) 49.6kW
com8(-13.1dB) 49.1kW
Mux 1*, Mux 2*, Mux A*, Mux B*, Mux C*, Mux D*(-17dB) 20kW
Analogue 5(-20dB) 10kW

Which companies have run the Channel 3 services in the Sandy Heath transmitter area

Oct 1959-Feb 2004Anglia 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.

Monday, 2 November 2015

8:42 PM

Matt: Remember that your neck of the woods could be getting a signal from one of four transmitters. My parents in law live on the coast, and get Belmont. Talcneston could also be one, as could Waltham and Sandy Heath. So four different people could report 'no signal', but each tuned to a different transmitter!

Because you put your postcode into the site when you first posted (yeah!), there are a series of links to other sites which give loads of information. The DigitalUK site shows that Talcneston and Sandy Heath are your best bets, but Waltham/Belmont is also possible. If you want to check which transmitter your various sets have picked up, look at that link and then put each TV on BBC1. If its Sandy Heath, BBC1 should be on Channel 27.

If they are on Sandy Heath, there is a warning of a 'possible weak signal', but the RTI link says there are no problems. However, the weakness has to be seen in context - your not much further away from your transmitter than I am from Waltham, and I have to kill part of my signal for the PVR to cope, so that might not be the actual problem, if there is a weak signal at all. I think JB38 gets Sandy Heath, so he could possibly comment on signal strength.

Ask your neighbours on Freeview what local TV news they get, and if the get the same as you, ask if they are having problems. If they are, then its the transmitter, etc. If not, then its you. Most likely problem is a (very) loose connection or dodgy booster, etc. Follow the signal path back to the aerial, if poss. Remember that the weather was not great the last couple of days in Norfolk (I was there until Friday!), so moisture might have got into a cable, etc, or a connection might have frayed.

I suggest everyone does the same thing, becuase if there is a general problem, it can be addressed.

Good luck!

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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
8:45 PM

All my main tv channels are off air and have been for 3 hours now and I normally get 100% . so dont give me Its my end ....

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Daniel's 1 post GB flag
8:54 PM

I find it hard to believe that everyone has all of a sudden developed problems with their system and cables. Unless Gremlins have been messing about with all our cables! =O

Been up in the loft and all looks fine. Checked all our TV's etc. For us BBC1 is on channel 1. BBC1HD is on 101. Channel 27 here is ITV2 +1.

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Matt's 7 posts GB flag

8:58 PM

Matt: The erratic reception problems presently being experienced by a large number of viewers is "mainly" caused by difficulties related to changes in atmospheric conditions rather than anything connected with transmission problems, albeit that some TX's do indeed have a "possible weak signal" listed against them.

The difficulties referred to being due to a wave of high pressure slowly sweeping across Mid / Southern parts of the UK, creating havoc with the reception of digital signals in the process, bouts of erratic reception being experienced as it drifts across from West to East.

The good news being that it's forecast to clear away from the UK in a N / North Easterly direction by late Tuesday / Wednesday morning, when (hopefully!) reception should then return to normal.

Needless to say, absolutely nothing can be done to help alleviate this problem.

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jb38's 7,179 posts GB flag
9:09 PM

Thanks for the reply, JB38.

Then in that case this new digital system is flawed. The TV is totally unwatchable in these weather conditions. Back when it was analoge you could at least watch TV, even with a bad picture.

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Matt's 7 posts GB flag

9:22 PM

Matt: The weather conditions would have exactly the same effect, be it analogue or digital. When I was growing up on the South Coast, such conditions used to mean French TV, rather than Southern. In fact, thanks to digital, that no longer happens.

JB38: Are you getting the same problem? I'm on Waltham, so I can't check (although that might explain the Pop TV signal falloff), but it would be useful to see where the problem is actually happening.

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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
Andrew Mills
9:27 PM

I live in Peterborough and have been losing TV signal for periods of 50 to mins at a time. Previous to tonight we had no such problems.

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Andrew Mills's 1 post GB flag
9:39 PM

It did, Mike? I'm in my 30's. Growing up i can remember either having a good picture, a weak but watchable picture, and even sometimes 2 channels ghosting into one another. But it was always watchable regardless. Even with a wire coat hanger jammed into the back of the TV as an aerial. lol Everyone here seems to say the same as me.

Neighbours are having the same problem btw. We both just did another re-tune and lost loads of stations. The ones that remain are patchy.

We never had this fannying around with analouge did we. No having to constantly check connections, climbing up in the loft, having to come online to find out what the problem is etc etc etc. Back in the days of analouge if the picture was a tad crap you would simply twiddle the aerial on the back of the TV until you got a watchable picture. Happy days! =)

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Matt's 7 posts GB flag

9:45 PM

Matt: Yes, quite so, as analogue reception was far more robust as far as coping with interference is concerned, albeit that double images /ghosting, or images sweeping across the screen in the back ground were commonly experienced during high pressure related problems, digital signals unfortunately not being near so tolerant, picture break up or even vanishing on experiencing relatively low levels of interference.

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jb38's 7,179 posts GB flag

10:04 PM

MikeB : Sorry for the delay in replying. Yes, the situation is still the same when tested a few minutes ago, great signal but accompanied by zero quality. C31 still OK though!

Reception of Mux 26 (Pop) is not really possible in my area, at least not in an even remotely reliable fashion.

Of course PSB3 HD reception also vanished for a few hours on Sunday, returning later on in early evening, but though hopefully this issue will have cleared up by Wednesday.

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jb38's 7,179 posts GB flag
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