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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 27/11/2023 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 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, 89 ITV4 +1, 91 WildEarth, 209 Ketchup TV, 210 Ketchup Too, 211 YAAAS!, 267 Al Jazeera English, plus 35 others

 H -0.2dB
C36 (594.0MHz)289mDTG-8170,000W
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 -0.2dB
C48 (690.0MHz)289mDTG-8170,000W
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)

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.

Wednesday, 19 January 2011

11:23 AM

Frustrated in Kettering: Not without a postcode I can't.

link to this comment
Briantist's 38,902 posts GB flag
Ryan Harrison
2:42 PM

Hi there,

I live in a rented flat with a communal aerial in the centre of Cambridge and have a new Freview HD TV.

From your diagram of Freeview multiplexes it seems I am missing all channels on row 2, with patchy/missing reception for row 1.

Does this mean we require a wideband aerial? The rental agency are telling me the aerial has been checked, but I don't believe the person I spoke to really knows what she is talking about!

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Ryan Harrison's 2 posts GB flag
Ryan's: mapR's Freeview map terrainR's terrain plot wavesR's frequency data R's Freeview Detailed Coverage

3:39 PM

Ryan Harrison: No, it doesn't mean you need a wideband aerial, as all the multiplexes are out-of-group then you wouldn't see any of them.

You also won't get Freeview HD until switchover.

But on Wednesday 30th March 2011 the signals will improve considerably.

I would ask "the agency" to provide you with details of the company that manages the communal aerial system.

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Briantist's 38,902 posts GB flag

7:05 PM

Frustrated in Kettering: I have just had a look at the Digital Uk predicted reception for NN15 5UR, the central postcode in Kettering. Today ,using Waltham gives 4 muxes whilst Sandy Heath gives 2. After 13th April 2011 Sandy Heath gives the 3 PSB muxes,31st Aug adds MuxA, 14th Sept gives 5 muxes and 23rd November all six. Waltham meanwhile gives all six muxes from 31st August 2011, with reception of MuxA getting better and Mux ArqB deteriorating slightly when Oxford switches over in September.

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KMJ,Derby's 1,811 posts GB flag
KMJ,Derby's: mapK's Freeview map terrainK's terrain plot wavesK's frequency data K's Freeview Detailed Coverage
Thursday, 20 January 2011
Ryan Harrison
4:52 PM

Hi again,

Thanks for your answer. I did notice that for a little while last night I seemed to be able to receive all the Freeview channels (including some that have never worked until now).

Is it just a case of waiting until the switchover is complete and all will be well?

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Ryan Harrison's 2 posts GB flag

5:06 PM

Ryan Harrison: I would still ask whoever manages your communal aerial, as it may need some attention for switchover.

link to this comment
Briantist's 38,902 posts GB flag
Saturday, 22 January 2011
Graham Williams
9:21 AM

I Live in Girton, Cambridge. For the last 2 or 3 weeks the digital reception throught my tv's built in freeview has been rubish ie. picture breaking up ro freezing. When I watch through my BT VISION box there is no problem. This is a recent problem. For at least 2 years I have had the same set up with NO! problem. Is the pre switch over work being carried out that we don't know about causing the problem. I am using exactly the same arial set up that I have always used. HELP!!!!!!

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Graham Williams's 1 post GB flag
Graham's: mapG's Freeview map terrainG's terrain plot wavesG's frequency data G's Freeview Detailed Coverage
2:23 PM

Just swung my aerial round from Waltham to Sandy Heath as I was missing a multiplex, and retuned. This time missing a different mux. Looking at your site I see that both transmitters are broadcasting on ch.45, presumably knocking each other out. Looking further I see after switchover Sandy Heath will then clash with Belmont on two mux, at ch21 and ch23. This seems to me that it will cause problems around the King's Lynn area where both transmitters can be received. Any ideas on how to overcome this?

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Steve's 20 posts GB flag
Steve's: mapS's Freeview map terrainS's terrain plot wavesS's frequency data S's Freeview Detailed Coverage

7:03 PM

Unless they are both in roughly the same direction, it should simply be a matter of using a sufficiently high gain aerial, accurately pointed.

As you probably know, but others may not, "gain" is basically about the extent of directional precision, and comes at the price of demanding more accurate pointing. Tricky in the digital age unless you have equipment, because the traditional "left a bit, Fred" to a man doing the pointing is far harder for digital because you do not get a clear transition to and from best signal, and the equipment inserts delayed responses.

Another consideration is the frequencies at which your ae works best - "Groups"

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steve's 1,173 posts GB flag
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