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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Friday, 11 January 2013
P
Peter9:55 PM
Thanks Dave, will pop over to see them early next week and give it a go. will let you know of progress. Thanks for your help.
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Thursday, 17 January 2013
D
Damian 4:58 PM
Recently we lost all stations on channels 48 (Film 4 etc) 51 (ITV3 etc) and 52 (Pick tv etc). All BBC channels, ITV1, C4, C5 etc are excellent (Channels 27 and 24). I installed a new aerial, still same problem. Same on both TVs, manual and auto retuning does not help. Any ideas?
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Monday, 21 January 2013
B
brian2:26 PM
London
I went to my local chip shop the other day and noticed an aerial looking at Sandy Heath.
Nothing too unusual in that except that my chip shop (Mr Fast fry) is in Greenwich, South London.
I looked at the postcode checker and there is a 90% plus signal there on all the main MUXs .
Same if I put in sample postcodes in SE18 or SE2 further along the river Thames.
There have always been a few Anglia TV aerials along this stretch of river but always looking at Sudbury not Sandy.
Does anyone know if Sandy has had a major change in its radiation pattern? The digital power seems in proportion (at less than 1/5 of analogue).
I did a plot using this site Terrain - shows radio profile between two UK sites to optimise you DTT, Freeview, DAB or analogue TV reception and the path appears well and truly blocked several times miles away.
We are about 5 metres AOD and are 73kms away from Sandy!
My signal from Crystal Palace is fine by the way (SE10 0AE), I am just curious how such a strong signal penetrates south of the Thames.
(SE100AE)
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brian's: mapB's Freeview map terrainB's terrain plot wavesB's frequency data B's Freeview Detailed Coverage
M
Michael4:01 PM
brian: Have you checked to see if the chip shop is actually getting the Anglia regional news? Because I can see two aerials by looking at google street view - one north, one south.
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Michael: I'd be more concerned that if I ordered haddock I got haddock and if I ordered cod I got cod.
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B
Brian Manley10:54 PM
London
Michael : Maybe Mr Fast fry himself is not watching news of school closures in Peterborough but one of his clan is as you can see from your poke around his roof top with google street view the aerial is one of them new fangled 3 pronged 'digital' ones you didn't get in the good old days, Dave : His skate is very good but you need to wait 10 minutes for it..
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Brian's: mapB's Freeview map terrainB's terrain plot wavesB's frequency data B's Freeview Detailed Coverage
Monday, 4 February 2013
N
nick4:50 PM
Stevenage
i live in sg12ll and half the freeview channels are missing.
psb2/d3+4
com4/sdn
com5/arq a
com6/arq b
all the hd
i pay £ 145.50 a year for half the channels !
i live in a flat with municipal tv supply. they say its a weak area !
how do i get the channels i pay for ?
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nick's: mapN's Freeview map terrainN's terrain plot wavesN's frequency data N's Freeview Detailed Coverage
Tuesday, 5 February 2013
M
Michael4:07 PM
Leicester
nick: Maybe it would help if you told us what channels you're missing instead of typing out all of the muxes.
Is everyone else in the flats missing the same channels? If so it could be an aerial problem, as you do need a wideband aerial to get all of the commercial channels from Sandy Heath. Also, HD channels won't show up unless you have a DVB-T2 tuner inside a box or TV.
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Michael's: mapM's Freeview map terrainM's terrain plot wavesM's frequency data M's Freeview Detailed Coverage
Wednesday, 27 February 2013
H
Heather Marsh8:44 PM
We have previously received all channels but within the last week we have a greatly reduced channel selection. We have emptied and rescanned with no change.
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Wednesday, 20 March 2013
D
D Williams in NN8 5YU4:43 PM
in the last couple of weeks our ITV channels
from Sandy have been very poor and breaking up. we did a signal check on each channel and it comes up with "poor ". all BBC and other stations are strong and come up with a full green signal strength, the ITV,s are all yellow with step backs to red ( very bad ) occasionally.
I have reset all freeview settings more than once but problem is still there please comment ? thank you
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