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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

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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.

This transmitter has no current reported problems

The BBC and Digital UK report there are no faults or engineering work on the Sandy Heath (Central Bedfordshire, England) transmitter.

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-3180,000W
Channel icons
1 BBC One Cambridge, 2 BBC Two England, 9 BBC Four, 120 CBBC, 121 CBeebies, 130 BBC News, 131 BBC Parliament, 601 BBC RB 1, plus 17 others

 H max
C24 (498.0MHz)291mDTG-3180,000W
Channel icons
3 ITV (Anglia (West micro region)), 4 Channel 4 South ads, 5 Channel 5, 6 ITV 2, 13 Channel 4 +1 South ads, 14 More4, 15 Film4, 24 ITV4, 28 E4, 33 ITV +1 (Anglia east),

 H max
C21+ (474.2MHz)291mDTG-6180,000W
Channel icons
45 Film4 +1, 101 BBC One HD (England no regional news), 102 BBC Two HD (England), 103 ITV HD (ITV Meridian Southampton), 104 Channel 4 HD South ads, 105 Channel 5 HD, 123 CBBC HD,

 H -0.2dB
C51 (714.0MHz)291mDTG-8170,000W
Channel icons
10 ITV3, 20 Drama, 21 5 USA, 26 ITV Be, 27 ITV 2 +1, 30 5STAR, 34 ITV3 +1, 37 Quest, 44 Channel 5 +1, 54 My5, 58 ITV Be +1, 61 True Entertainment 1, 62 ITV4 +1, 66 CBS Reality, 70 Horror Channel, 83 Blaze, 84 Blaze +1, 122 CITV, plus 25 others

 H -0.2dB
C52 (722.0MHz)289mDTG-8170,000W
Channel icons
11 pick, 12 Dave, 17 Really, 29 E4 +1, 32 Sony Movie Ch, 41 Food Network, 46 Challenge, 48 Movies4Men, 68 truTV, 69 Tru TV +1, 72 YourTV, 126 Tiny Pop, 132 Sky News, plus 12 others

 H -0.2dB
C48 (690.0MHz)289mDTG-8170,000W
Channel icons
 Al Jazeera English,  BT Sport 1 (not free), 18 4Music, 19 Yesterday, 25 Home, 31 Spike, 38 Quest +1, 42 Travel Channel, 47 4seven, 59 BT Showcase (not free), 64 CBS Action, 73 YourTV +1, 79 Dave ja vu, plus 23 others

 H -5.6dB
C32 (562.0MHz)291mDTG-649,600W
Channel icons
 Buz Muzik, 56 5USA +1, 57 VIVA, 67 CBS Reality +1, 71 CBS Drama, 81 Talking Pictures TV, 82 Vintage TV, 87 Keep It Country, 106 BBC Four HD, 107 BBC News HD, 108 Al Jazeera Eng HD, 109 Channel 4+1 HD, 110 4seven HD, 113 RT HD, 124 CBeebies HD, plus 4 others

 H -5.6dB
C34 (578.0MHz)291mDTG-649,100W
Channel icons
55 5STAR+1, 63 Community Channel, 86 More4 1, 91 Front Runner TV, plus 3 others

DTG-3 64QAM 8K 2/3 24.1Mb/s DVB-T MPEG2
DTG-6 256QAM 32KE 2/3 40.2Mb/s DVB-T2 MPEG4
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
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
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?

aerial groupVHFA KKWWWW

orange background for multiplexes names more
green background for transmission frequencies
lilac background for power levels in watts
800MHz band: 4G mobile started in 2013
700MHz band: 4G from 30 June 2020more
600MHz band: new or moved digital TV services more
Notes: + and - denote 166kHz offset; aerial group are shown as A B C/D E K W
Italics for analogue, digital switchover was Wednesdays 30th March and 13th April 2011.

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.

Friday, 3 February 2017
2:38 PM

StevensOnln1: I am in Milton Keynes, so I think it is highly unlikely that I am picking this up from the Madingley transmitter.

link to this
DC's 2 posts GB
3:58 PM

DC: You are correct, you certainly won't be picking up Madingley in Milton Keynes. The data for the Cambridge local mux is broadcast on Sandy Heath's multiplexes so that receivers which do pick it up know what to do with its channels.

link to this
StevensOnln1's 417 posts Gold Gold GB
Saturday, 4 February 2017
2:13 AM

StevensOnln1: Thank you, that is certainly a plausible explanation,

I would like to have been able to confirm that Madingley _does_ carry these channels, but the page for that transmitter ( is somewhat incomplete - which of course is not your fault :)

link to this
DC's 2 posts GB
3:34 AM

DC: Hmm. You were being polite to call that page incomplete I would go so far as to say that other than the map, the channel information on page is totally inaccurate.

link to this
Aiax's 1 post US
5:01 PM

DC: A check on Digital UK's predictior with a Cambridge postcode shows the local mux broadcasting at 1KW from Madingley (Link: Coverage Checker - Detailed View ).

According to Cambridge TV launched on 18th August 2015 and was renamed That's Cambridge back in December 2016 following a change of ownership.

link to this
StevensOnln1's 417 posts Gold Gold GB
Tuesday, 14 February 2017
10:43 PM

Why is Sandy Heath showing BBC London News? There is obviously a switching fault!
This morning (Tue 14th Feb) it showed London News during the Breakfast breaks.
After News at Ten it is doing the same. I can only presume it was the same at 18:30.

link to this
Martini's 2 posts GB
Wednesday, 15 February 2017
Richard Wood
8:35 AM

Martini: The 18:30 Sandy Heath Freeview transmission was Look East (west)

link to this
Richard Wood's 11 posts GB
Saturday, 18 February 2017
Transmitter engineering
4:32 AM

SANDY HEATH transmitter - DAB: BBC National DAB Radio Weak Signal from 13:38 on 16 Feb to 14:07 on 16 Feb. [BBC]

link to this
Transmitter engineering's 117,726 posts Owner Owner xx
Tuesday, 21 February 2017
Dr Basil Polychronopulos
11:16 PM

First of all I cannot understand why int the coverage map there are lots of grey areas that appear to lie around A -roads and motorways. According to this map my area in Luton is NOT covered with good signal strength. What causes this shadowing effects? Interference or what?
Second as a scientist I would like access to a dull technical description of the new terminology used. e.g. In polarisation: what is Hmax? or H-5.6 db. I am fully conversant with Vertical, Horizontal, circular or elliptical polarisation but the above appears to be new jargon that needs explaining.
What time of multplexing is employed? Certainly not Space. Frequency division? - then the frequency of every channel should be listed. Time division? This would curtail significantly the effective bandwith and would result in shitty quality with fast moving / HD scenes. Could you give me link to a technical description of the jargon (and the bad English - like multiplexes!) or else some references please. Yes I can understand it I have a B.Sc. in Elelctronic |Engineering and a Ph. D. in Space science. Many thanks, Basil PS. Icannot currently receive Ch 63 which according to your chart is on Com 8 at 578.0 MHz.

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Dr Basil Polychronopulos's 1 post GB
Wednesday, 22 February 2017
7:34 PM

Dr Basil Polychronopulos:

The coverage maps shown where signals can be received from a particular transmitter. The 'grey' areas are where the signal is not receivable due to terrain blocking them. The location of roads is irrelevant.

As a scientist you should do a bit of research as all the terms used and mentioned are standard terminology for RF broadcasting. Details are readily available on several websites.

The mulitplexing depends on whether it is a T1 or T2 transmitter, they use a form of quadrature modulation. Again, research will tell you.

Jargon it is not, but it is correct technical language that has been used in the industry for many years.

My MSc allows me to understand it, as well as my many years in the industry. So I would have expected a holder of a BSc in electronics to do a bit of independent research.

link to this
MikeP's 1,309 posts Gold Gold GB
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