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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.

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
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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.

MuxH/VFrequencyHeightModeWatts
PSB1
BBCA
 H max
C27 (522.0MHz)291mDTG-3180,000W
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, 250 BBC Red Button, plus 15 others

PSB2
D3+4
 H max
C24 (498.0MHz)291mDTG-3180,000W
Channel icons
3 ITV (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, 30 E4 +1, 35 ITV +1 (Anglia east),

PSB3
BBCB
 H max
C21+ (474.2MHz)291mDTG-6180,000W
Channel icons
56 5SELECT, 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, 106 BBC Four HD, 109 BBC Three HD, 204 CBBC HD, 205 CBeebies HD, plus 1 others

COM4
SDN
 H -0.2dB
C33 (570.0MHz)291mDTG-8170,000W
Channel icons
12 Quest, 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 MAX, 209 Ketchup TV, 210 Ketchup Too, 211 YAAAS!, plus 15 others

COM5
ArqA
 H -0.2dB
C36 (594.0MHz)289mDTG-8170,000W
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 8 others

COM6
ArqB
 H -0.2dB
C48 (690.0MHz)289mDTG-8170,000W
Channel icons
 FreeSports, 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 Aljazeera English, plus 19 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 (66°)
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
VHFA K TK TK TW TW T
C6ITVwaves
C21C4wavesC4wavesC4waves+BBCBBBCB
C24ITVwavesITVwavesITVwavesD3+4D3+4
C27BBC2wavesBBC2wavesBBC2wavesBBCABBCA
C31BBC1wavesBBC1wavesBBC1waves
C32com7
C33SDN
C34com8
C35_local
C36ArqA
C39C5wavesC5waves
C43_local
C48ArqBArqB
C51tv_offSDN
C52tv_offArqA
C55tv_offcom7tv_off
C56tv_offCOM8tv_off

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.

Comments
Thursday, 4 August 2011
Transmitter engineering
sentiment_very_satisfiedOwner

5:22 PM

SANDY HEATH transmitter - Over the next week Sandy Heath main transmitter: no digital TV, TV (digital) Liable to interruption, Radio (analogue) working normally, Radio (digital) working normally. [DUK]

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Transmitter engineering's 138,029 posts GB
Transmitter engineering
sentiment_very_satisfiedOwner

7:08 PM

SANDY HEATH transmitter - Over the next week Sandy Heath main transmitter: no analogue TV, TV (digital) Liable to interruption, Radio (analogue) working normally, Radio (digital) working normally. [DUK]

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Transmitter engineering's 138,029 posts GB
Friday, 5 August 2011
B
Bob Archer
7:06 PM

Very informative post Mike, thanks - I was curious about the Vertical beam tilt
Bob

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Bob Archer's 12 posts GB
Sunday, 7 August 2011
J
joe
4:53 PM

Would the mux magician from Amazon uk be enough to fix my problems from a few pages back? Is suitable for this transmitter? Would there be too much signal being boosted?

link to this comment
joe's 4 posts GB
M
mr weet
5:39 PM

if the transmitter is down and i cannot get any tv. does that mean i can have a refund on my tv licence as i am not getting what i have paid for?
also digital isnt as good as analogue as if there is a storm there is a problem with signal!
this is not being rude or disrespectful just asking a fairly sensible question.
thankyou

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mr weet's 2 posts GB
Briantist
sentiment_very_satisfiedOwner

5:45 PM

mr weet: No refund is due to your TV Licence unless you sell your TV set.

Digital TV more resilient to weather-based faults than analogue.

The current issue are planned engineering work, not faults.

link to this comment
Briantist's 38,844 posts GB
M
Mike Dimmick
sentiment_very_satisfiedPlatinum

7:20 PM

joe: First, check that your box or TV can properly handle 8K mode. If it can't, it may have picked off-beam transmissions from Crystal Palace rather than the desired ones from Sandy Heath, when you retuned at switchover. The signals from Crystal Palace could still be strong enough to pick up, but a lot closer to the 'cliff edge', meaning they come and go. There is a list of some equipment known not to work at http://www.digitaluk.co.u…ment .

At present, Mux C at Sandy Heath is still using its pre-switchover 2K mode. Crystal Palace - which switches next April - is still broadcasting everything in 2K mode.

Some boxes will store the first channels they find when scanning, starting at C21 and working their way up, so it could still store Crystal Palace in preference to Sandy Heath. In this case, usually the other set(s) found is/are stored somewhere else in the programme guide - often at channel 800 and up.

Check the frequencies that the box shows for each channel group at the top of the page - this is often in the tuning menu or in System Status. If it says 25 for BBC One, 22 for ITV1, 28 for BBC Four/CBeebies then it's using Crystal Palace. You should do a full reset with the aerial unplugged, to clear all stored channels, then manually tune on C24 and C27 for BBC and ITV. If the box won't detect anything on those channels, try without the amplifier. If it still won't, it may not be able to handle 8K mode at all.

I would strongly recommend you don't try to change your roof-top aerial yourself. If you do require a high-gain aerial - and the prediction suggests that you won't, once all changes are finally complete (9 May next year, unfortunately) - a grouped aerial will be smaller for the same amount of gain. Those tri-booms are, frankly, overkill for most people.

If it's definitely tuning into Sandy Heath, the problem could easily be that water has got into the cables or outdoor connections - this affects the highest frequencies first and worst. ArqB is way up at C67 at present, and Mux A/SDN is shown as the lowest probability of reliable reception at your postcode, for now.

As you can see, it's not a simple answer, and professional assistance might get the problem sorted out sooner.

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Mike Dimmick's 2,486 posts GB
M
mr weet
9:22 PM

fair enough, but if you don't ask as they say.
so can i ask how i can watch the tv i require whilst engeneering in progress?
on the railways they have buses in when they have engineering so no backup transmitter?
prehaps they real reason for riot was that there was no tv in tottenham haha...
just joking of course, unfortunately i can't watch the news so i don't know.

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mr weet's 2 posts GB
Monday, 8 August 2011
Briantist
sentiment_very_satisfiedOwner

7:28 AM

mr weet: Use the "live TV and radio" panel in the right hand column.

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Briantist's 38,844 posts GB
M
MickO
sentiment_satisfiedBronze

9:54 PM
Milton Keynes

So there will be a need to retune for Sandy Heath...
31 Aug 2011
15 Sep 2011
23 Nov 2011
09 May 2012?
And the final National retune day is?
Oh, and I saw somewhere, but can't find it, at what date do the rest of the Mux's go high power? I get enough RF down the co-ax to split/2 and then split/4, except I'm still having to use an amp for the lower power mux's, as they are borderline.
regards,



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MickO's 26 posts GB
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