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.
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._______
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 |
Which companies have run the Channel 3 services in the Sandy Heath transmitter area
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Wednesday, 2 January 2019
H
hardy12:10 PM
Nigel. reception should be very good at your location. (see coverage checker) I think if all channels are knocked out it suggests very strong nearby interference . Could be tricky to sort out . Possibly an anti phone signal filter might fix it . But it could be you are very near a phone mast . However check with neighbours to see if they get the same problem . If they don't then I would check your aerial system . You may even need a small attenuator in the aerial lead if the signal is too strong .
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C
Chris.SE5:44 PM
Nigel tofield;
As has already been said, this sounds like a problem with interference. It's unclear from your post if it just "starts" at some point between 7pm and 7.30pm, or is present for exactly that period only. Whichever, it's clearly a regular event probably on a timer. The most common things are central heating, hot-water heating (Immersion heaters) etc. Igniters or thermostats may have gone faulty, but external flood lighting is another possibility, nor should you rule out any internal lighting such as fluorescents (compact or otherwise) and I'm afraid some LEDs (non-filamentary types which are the most common) all of which may have developed a fault.
Check the timing of your own electrical equipment, and also see if neighbours are having similar issues. It could be a near neighbour that has the faulty equipment.
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Thursday, 3 January 2019
H
hardy9:50 AM
Celine . It is unusual to loose standard signals yet have HD ok. I suspect that your tv is partially tuned to the wrong transmitter . This can happen if youre near several transmitters . The auto tuning might pick the wrong one . You may need to do a manual tune on the UHF channels listed by Mike .
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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
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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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