Full Freeview on the Sandy Heath (Central Bedfordshire, England) transmitter
Brian Butterworth first published this on - UK Free TV
Google Streetview | Google map | Bing map | Google Earth | 52.130,-0.242 or 52°7'47"N 0°14'33"W | SG19 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.
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Digital television services are broadcast on a multiplexes (or Mux) where many stations occupy a single broadcast frequency, as shown below.
64QAM 8K 3/4 27.1Mb/s DVB-T MPEG2
H/V: aerial position (horizontal or vertical)
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.
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?
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
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?
1965-80s | 1984-97 | 1997-98 | 1998-2011 | 2011-13 | 12 Feb 2020 | ||||
VHF | A K T | K T | K T | W T | W T | ||||
C6 | ITVwaves | ||||||||
C21 | C4waves | C4waves | C4waves | +BBCB | BBCB | ||||
C24 | ITVwaves | ITVwaves | ITVwaves | D3+4 | D3+4 | ||||
C27 | BBC2waves | BBC2waves | BBC2waves | BBCA | BBCA | ||||
C31 | BBC1waves | BBC1waves | BBC1waves | ||||||
C32 | com7 | ||||||||
C33 | SDN | ||||||||
C34 | com8 | ||||||||
C35 | _local | ||||||||
C36 | ArqA | ||||||||
C39 | C5waves | C5waves | |||||||
C43 | _local | ||||||||
C48 | ArqB | ArqB | |||||||
C51tv_off | SDN | ||||||||
C52tv_off | ArqA | ||||||||
C55tv_off | com7tv_off | ||||||||
C56tv_off | COM8tv_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 |
Local transmitter maps
Sandy Heath Freeview Sandy Heath DAB Sandy Heath TV region BBC Cambridge Anglia (West micro region)Which companies have run the Channel 3 services in the Sandy Heath transmitter area
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Thursday, 3 January 2019
M
Mike Hoare1:02 PM
Kettering
Hello,
I have a digital arial that has to be re-positioned to Sandy Heath. It is on the roof and my postcode is NN15 5BZ. What will be the compass heading in order for me to position the arial please from this location.
Regards,
Mike Hoare
link to this comment |
Mike's: mapM's Freeview map terrainM's terrain plot wavesM's frequency data M's Freeview Detailed Coverage
S
StevensOnln12:05 PM
Mike Hoare: The Digital UK checker shows that Sandy Heath is on a bearing of 131 degrees from your postcode. You don't have a digital aerial as no such thing exists. Your aerial will need to be a wideband type for good reception of all multiplexes from Sandy Heath.
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Monday, 14 January 2019
M
M. Walsh12:45 PM
Market Harborough
Hi, we have regular problems with DTV channels BBC1 BBC2 etc (channel 27). but the HD channels are fine. We are tuned to Sandy Heath. The signal strength is good but the quality is poor/medium. This usually happens when there is a period of high pressure. Is there anything we can do? Our post code is le16 7bt
Aerial is on the roof.
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M.'s: ...
S
StevensOnln12:13 PM
M. Walsh: If this is only happening during periods of high pressure then it's unlikely that anything can be done. The high pressure allows radio signals to travel much further than normal, causing interference from distant transmitters which broadcast on the same frequency but which are not receivable under normal conditions.
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Thursday, 24 January 2019
N
NINA12:54 PM
Hello. over the past two weeks i have had bad pixerlatating on my TV . its been so bad that i,v even gone out and brought a New TV thinking the other TV was on the way out, but it still pixerlates. are you or any other componey doing any signal manternace thank you ,.ps sorry about the spelling.
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S
StevensOnln12:09 PM
NINA: There is no engineering work showing for Sandy Heath. Have you checked for any loose or damaged cables or connections behind your TV? Please provide a full postcode so that we can see where you are in relation to the transmitter and your predicted coverage etc.
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Monday, 11 February 2019
H
hardy4:28 PM
Mr Walsh . the coverage checker shows a strong signal at your location. You are inland so should not get much continental interference . I wonder if your aerial system is too sensitive .(overloading the tv) . You should not need an amplifier . I would remove it if you have one and you may need a small attenuator to reduce the signal further . Without an amplifier you should aim for a signal strength reading of no more than about 80%.
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Wednesday, 13 February 2019
M
Michael John Howarth10:28 PM
This evening (13-2-2019) we have had major disruption of the main TV Channels, making them unwatchable for almost all the time. This occurs a number of times each year, although some channels never seem to be affected (Channel 37 "Quest" for example.
We have a brand new roof arial, with internal signal booster, and yet both before and after the replacement arial, this keep occurring. The arial installer about the alternative, Talconston, which is equidistant from Sandy Heath, advised us NOT to change , as it was no more reliable.
We are aware that in high pressure weather systems, signal strength at the extremes of range are reduced - but to lose signal altogether on ONLY SOME (The Main) channels is unacceptable and inexplicable
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MikeP
10:37 PM
10:37 PM
Michael John Howarth:
You have explained it yourself. High pressure causes numerous recepotion problenms and often affected just some channels and not others. As it is a perfectly natural phenomenon there is noth anybody can do about it. It has been known about the many decades.
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Thursday, 14 February 2019
P
Peter Reynolds 9:01 AM
Peterborough
Have no signal from Sandy heath.....can get Sky news,and various other channels
but no BBC ,Itv or Channel4 or 5.
We are on freeview.
Have tried turning off booster...no difference.
All connections have been checked and ok.
We have experienced this problem before and then it clears.
Is this an atmospheric issue ?
There is a mobile phone mast near us in the village... could that cause interference?
Postcode is PE3 9NH.
THANKS
link to this comment |
Peter's: mapP's Freeview map terrainP's terrain plot wavesP's frequency data P's Freeview Detailed Coverage
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