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 |
Which companies have run the Channel 3 services in the Sandy Heath transmitter area
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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
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Peter's: mapP's Freeview map terrainP's terrain plot wavesP's frequency data P's Freeview Detailed Coverage
BBC1 and 4 unwatchable in Haddenham and Witchford. Have to stream them.
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I have done endless manual resets and still have terrible reliability issues on Frequency 27, in other words all the BBC channels. There is nothing wrong with my aerial, nor with my television a Panasonic Viera. I live at SG8 8SP and can actually see the transmitter from my house. Why am I paying a licensing fee if I'm getting such poor reception and how can I improve it?
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Dr's: mapD's Freeview map terrainD's terrain plot wavesD's frequency data D's Freeview Detailed Coverage
S
StevensOnln110:19 AM
Dr C A Fox: If you can see the transmitter then there's a good chance that your TV is being overloaded with too much signal (try fitting an attenuator to reduce the signal strength). What signal strength and quality readings on other channels such as ITV?
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Wednesday, 20 February 2019
C
Chris.SE4:16 PM
Dr C A Fox: & Roger Fentiman: & Peter Reynolds:
There is Planned Engineering work at Sandy Heath at present with "Possible Weak Signal" so this is the most likely cause of the intermittent/temporary loss of reception. With the current weather High Pressure system this won't help matters either.
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Thursday, 21 February 2019
E
Earl Thomson11:11 PM
Hello I have a very good quality aerial which was fitted 4 months ago for Freeview in the kitchen we have sky in all other rooms .
On my Freeview TV we are having constant pixelation and drop out of signal I have checked with local residents around the area who are also experiencing serious reception issues with there Freeview HD TV .
I have returned and checked cables.
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E
Earl Thomson11:15 PM
Daventry
My postcode area is NN11 3SZ
Manor house with outside worker buildings.
Kind regards Earl Thomson.
link to this comment |
Earl's: mapE's Freeview map terrainE's terrain plot wavesE's frequency data E's Freeview Detailed Coverage
Friday, 22 February 2019
MikeP
11:21 AM
11:21 AM
Earl Thomson:
Those sort of problems are not due to any faults anywhere, but are mainly due to weather conditions. Patience is called for.
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