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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
Sunday, 3 July 2016
J
John King
11:50 AM

thank you.
It is a communal ariel - which only the housing association owning the building have access to.
I did report a problem to them when this started 4 weeks ago but that was in response to it getting a lot worse and losing all reception for a couple of days (the ariel seems to get a problem and lose all reception every month or 2 - which seems unusual to me)
I don't really know the neighbours, some don't stay that long, many use satelite
(I did try changing the fly lead though didn't use any shielded)

link to this comment
John King's 3 posts GB
R
Richard Cooper
sentiment_satisfiedGold

4:38 PM
Norwich

John King: Hi, John. Your Housing Association has the obligation to ensure that you have access to public service broadcasting. It is responsible for ensuring that the communal aerial system is working effectively, although I would imagine that it subcontracts the work out to a local aerial contractor, in the same way that Broadland Housing Association does here in Norwich, where I live. We are fortunate that I have a personal relationship wit the managing director of our communal aerial subcontractor and so he goes out of his way to ensure I don't experience any reception problems. Don't forget that Housing Associations have official complaints procedures that you can follow if you are dissatisfied with any of the services which you pay for in your service charge. Richard, Norwich.

link to this comment
Richard Cooper's 461 posts GB
Monday, 4 July 2016
J
jb38
sentiment_very_satisfiedPlatinum

12:42 AM

John King: Thanks for the confirmation that you are indeed (as suspected) connected into a communal aerial system, something which somewhat simplifies the situation, insomuch that about the only thing anyone can do when connected into such a system is to verify that the jumper lead connecting their Freeview equipment into the wall socket (or otherwise) is in good condition, plus of course, that their TV or box is tuned into the mux channels used by the transmitting station that covers their area and not the odd mux from a station outwith same, not that this is likely to happen in your particular case, as alternative stations (Waltham and Belmont) are listed under the category of being either variable or poor.

Further advice available if required.

link to this comment
jb38's 7,179 posts GB
Monday, 11 July 2016
B
Bob Dye
4:26 PM

For about two months my two TVs have experienced very bad pixilation, clicking and sound breakup. I have checked with neighbours, and they are having the same problem. These are served by outdoor aerials which point to Sandy Heath. The issue starts occurring about midday and gradually gets worse till about 11pm-midnight. In extreme cases there is total loss of picture and sound with the corresponding notice "No Signal". The problem does not occur after around midnight through to early morning. We are located in Hitchin SG5.

link to this comment
Bob Dye's 1 post GB
R
Richard Cooper
sentiment_satisfiedGold

4:52 PM
Norwich

Bob Dye: Hi, Bob. In early June, there were atmospheric conditions comprising a combination of high pressure and temperature inversion causing tropospheric scatter of UHF tv signals. The effect for viewers is that their Freeview televisions or set-top boxes were unable to decode the signal from their usual transmitter as a result of co-channel interference from another transmitter using the same frequencies. The result was pixelation, squeaks and/or breakup of sound, and, worst case scenario: total loss of picture and sound. Once we had arrived at mid-June, the country was once again experiencing low pressure conditions and no temperature inversions and so things returned to normal. There was high pressure at the end of last week which possibly could have caused you problems again. There is nothing that can be done about these tropospheric scatter effects other than to wait until lower pressure conditions prevail. One can, of course, study the weather forecasts so that one can see when low pressure areas are approaching. Richard, Norwich.

link to this comment
Richard Cooper's 461 posts GB
Monday, 18 July 2016
Transmitter engineering
sentiment_very_satisfiedOwner

9:09 AM

SANDY HEATH transmitter - Possible weak signal [DUK]

link to this comment
Transmitter engineering's 138,029 posts xx
Tuesday, 19 July 2016
J
J. English
1:03 PM

I have freeview builtinto tv using a rooftop ariel. I have sound bot no picture on almost every channel apart fron bbc1 and2. Postcode Mk427HH

link to this comment
J. English's 1 post GB
MikeP
sentiment_very_satisfiedPlatinum

1:33 PM

J. English :

It is possible that the current warm weather is causing propogation problems. If so, there is no known cure apart from waiting foor the natural atmospheric effect to pass over.



link to this comment
MikeP's 3,056 posts GB
R
Richard Cooper
sentiment_satisfiedGold

2:55 PM
Norwich

J. English : Hi, J English. Digital UK is reporting, " a possible weak signal" from Sandy Heath today and so it is possible that some engineering works are currently taking place. Whether transmitter engineering or atmospherics it is simply a waiting game if your own installation is in 'A1' condition. Richard, Norwich.

link to this comment
Richard Cooper's 461 posts GB
J
John rye
7:19 PM

My post code is CB9 since an automatic new dvb service re-tune at the weekend BBC 2, ITV4, BBC HD and others have disappeared from my standard TV set menu, however my Freeview box services are all present and correct.
I have re-tuned the STANDARD set without success what is the problem?
Is it Sandy Heath?

link to this comment
John rye's 1 post GB
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Please post a question, answer or commentIf you have Freeview reception problems before posting a question your must first do this Freeview reset procedure then see: Freeview reception has changed, Single frequency interference, and Freeview intermittent interference.

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