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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Friday, 27 September 2013
R
Roy Turner10:52 PM
Peterborough
PE3 8BA Peterborough
Aerial is high above the roof. It was installed specifically for digital signals and points at Sandy Heath.
The problems only started this week.
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Roy's: mapR's Freeview map terrainR's terrain plot wavesR's frequency data R's Freeview Detailed Coverage
S
Steve10:58 PM
PE4 Peterborough
same here years of no problems this last week has been bad, any ideas why this is happening now?
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J
Jon11:18 PM
Freeview bad or non existant on Sandy Heath tonight from 21.00, of course I can receive the shopping channels and other irrelevant material but no BB1/BBC2, Ch4, ITV1 etc, cannot find any contact details for transmitter info or engineering assistance, generally very disapointed with non subscription services, cable not even an option in my Village and would have Sky
Looks like a conspiracy to make us all buy Satellite systems.
Everything on the PSB1 and 2 Mux is 15% or less signal strength, missed on program I especially wanted to see, and missed the 4+1 repeat as reception broke up again at 22.18, I am a an ex TV Engineer and I know what I am talking about, service is currently not worth the TV Licence
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S
Steve11:22 PM
Cambridge
CB24 9NU Using wide band aerial on roof to PVR then via Scart to TV. All used to work normally. No new hardware. Now some multiplexes no good especially BBC on ch 27. Can view signal on PVR. It gives "Strength" & "Quality". Some example numbers: ch24 S=60%, Q=0 or 10%; ch 52 S=61% Q=100%; ch51 S=61% Q=100%; ch27 S=58% Q=0; ch48 S=61% Q=100%. So the higher frequencies have more strength, but not that much more. Does the low quality on the others (unwatchable) indicate interference? Any ideas gratefully received, family are unhappy. Disenchanted with digital broadcast!
link to this comment |
Steve's: mapS's Freeview map terrainS's terrain plot wavesS's frequency data S's Freeview Detailed Coverage
J
John11:22 PM
Chatteris
Sandy Heath transmitter. Total loss of channels, must be a reason, had some interference last couple of weeks as well, what's going on, I have had 10years excellent signal from Sandy Heath.
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John's: mapJ's Freeview map terrainJ's terrain plot wavesJ's frequency data J's Freeview Detailed Coverage
J
JohnMcG11:33 PM
John:
Reassured by comments. Wife wanted me to go into loft to reset amplifier
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A
Andy 11:36 PM
Same here, vitually all of the decent channels have become unwatchable, it has to be a transmitter issue.
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J
John11:37 PM
Chatteris
JohnMcG.
I dare say we will get an answer in due course, no need for you to go up there :-)
link to this comment |
John's: mapJ's Freeview map terrainJ's terrain plot wavesJ's frequency data J's Freeview Detailed Coverage
A
Andy 11:39 PM
You're not the only one, I just reterminated my sat gold coaxial cables :-( no improvement.
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