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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Sunday, 1 May 2011
S
stephen Hall10:20 AM
Northampton
Prior to digital switchover I had intermittent picture breakup, pixalating and sometimes loss of signal. I understood that the digital signal was going to be substantially increased at switchover and assumed these issues would disappear. Sadly inspite of numerous re-tunes I still have the same reception problems! Has the signal actually been increased? I have a recent roof arial and live in nn4
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stephen's: mapS's Freeview map terrainS's terrain plot wavesS's frequency data S's Freeview Detailed Coverage
J
John11:07 AM
I have a new Sony HD tv which showed the HD channels listings but when selected there was no service/pic.
I rang Comet who said do a factory reset since then I get no HD channels/listings for the HD channels I have tried several times and the result is still the same
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J
John11:13 AM
I should have added I am in the Sandy Heath reception area and on all other channels the levels are 100%
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Steve2:41 PM
Wrexham
At a guess, the TV came having done channel selection somewhere else where there was a HD signal, but where you are there isn't.
So when you reset the listing disappeared too.
Are you on the main tx? Not a local relay etc.?
Stick your postcode in top right and see what Brian's predictor link says.
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Steve's: mapS's Freeview map terrainS's terrain plot wavesS's frequency data S's Freeview Detailed Coverage
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Steve2:44 PM
... UK digital TV reception predictor
try this too. (LL145HD)
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J
John3:14 PM
I am getting somewhere I used a set top aerial did the reset/retune and I now have all channels I didn't realise I had lost radio channels as well! I put the outside aerial in back in and the HD disappears so what I have is too strong a signal and the Sony can't cope with it!
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Steve5:16 PM
Wrexham
John - sounds good!
Does the wolfbane link say you need only set-top? It is notoriously pessimistic.
Are you sure there is no amplifier on your rooftop?
If you want to continue using it you can get attenuators. Or you could play by simply holding the plug near but not touching the socket! Works for a good analogue signal - not tried on digital.
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Steve's: mapS's Freeview map terrainS's terrain plot wavesS's frequency data S's Freeview Detailed Coverage
J
John6:12 PM
Further update bypassed the Sky HD Digibox and now the Sony works on all Channels so somehow the box is causing corruption! at least the problem has been solved.
I can get all the HD channels on my finger Steve and we are 40 plus miles from the transmitter!
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Steve8:01 PM
Wrexham
John - Was your RF (aerial) input going through the Sky box? If so, might conflict, or even just be overamplified.
Just SCART leads should not affect your tuning AFAIK.
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Steve's: mapS's Freeview map terrainS's terrain plot wavesS's frequency data S's Freeview Detailed Coverage
J
John8:36 PM
Through the box Steve but when I got to the status of no picture I went to look at the signal the level was 100% but the quality was zero!!
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