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.
_______
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
|
|
Tuesday, 26 April 2016
S
Seff3:15 PM
Also HD MUX CH 32 - CH 34 .
VERY POOR SIGNAL DESPITE MOVING .
34% SIGNAL
10% QUALITY
I see the signal power is low but is there any plan to increase this .
link to this comment |
S
Seff3:16 PM
What's really odd is the hd muxes don't freeze to often .
link to this comment |
Wednesday, 27 April 2016
MikeP
10:30 AM
Trowbridge
10:30 AM
Trowbridge
Seff:
Indoor aerials rarely work reliably and as you are some way from the transmitter they are unlikely to give any satisfactory or reliable results.
A good UHF aerial mounted externally is what is needed (not a 'digital' one, that's a con), aimed carefully towards the Sandy Heath transmitter.
If you put your full post code into this website, you will be able to see the transmision/reception conditions for your location. You will also be able to see whether there are any interuptions to 'line of sight' reception due to buildings or hill - they can cause signals reception problems.
link to this comment |
MikeP's: mapM's Freeview map terrainM's terrain plot wavesM's frequency data M's Freeview Detailed Coverage
Thursday, 5 May 2016
M
Mrs B Elliott8:55 PM
Hi I hope you can help me I have a very poor signal on free view .I am with B T I have had Bt out four times and thay say the signal is strong thay gave me a new box .I have had two aerial men out and thay say the signal is strong yet I am still haveing problems.you are my last hope .i live at Milton Keynes my post code is M K 8 9 AL .
link to this comment |
Friday, 6 May 2016
J
jb387:50 AM
Mrs B Elliott: Your best policy would be to try and ascertain if anyone else (neighbours?) in your immediate area are also experiencing similar problems with reception, which by the way, would suggest as only being of an intermittent nature judging by the number of engineers who have reported your signal as being OK.
My reason for suggesting that you check with neighbours, is that its noticed you reside close the Great Holm fire station, and the problem referred to "might" possibly be connected with the intermittent use of communication devices at said station.
Further advice as required.
link to this comment |
Friday, 20 May 2016
P
Paulj11:02 PM
Sandy Heath transmission of the HD mux's including channel4 seems to be showing a lot of signal break up
20/5.after 9pm to LittleDownham near Ely cb62ez and was showing some lesser break up over past week.
[I have not found an alternative forum to share such information, however the user interface on this site seems dated and I cannot determine if input is provided from any professional/commercial bodies with transmitter 'responsibility']
link to this comment |
Saturday, 21 May 2016
M
MikeB8:19 PM
Paulj: The breakup is probably due to something at your end, not the transmitter. Check your signal levels - are they high or low? If they are very high (90 % plus), then your tuner is going to hate it, and since HD tends to react to problems more easily than SD, you'll get break up (see 'too much of a good thing' on this site). Or, its its too low, then you need to seek out why. Usual reason is a dodgy connection somewhere in your system.
link to this comment |
MikeB's: mapM's Freeview map terrainM's terrain plot wavesM's frequency data M's Freeview Detailed Coverage
P
Paulj10:16 PM
MikeB,
Thanks, I have yet to check with neighbours about T2 reception, from your reply there is no Sandy Heath issues (as there were Nov 2015) or 'atmospheric' issue.
(usual retort) nothing has changed with my aerial or reception gear as far as I know and I am not aware of what kind of problem these could have that would explain a problem that seems to start circa 9pm ?
link to this comment |
Sunday, 22 May 2016
R
ruby9:24 AM
Hi I've just had freesat installed single feed . I get 82% signal 96% quality.
I'm a bit worried though as my cable had a few wire bits hanging out the cable at the back of my box and there silver looking I've herd that's cheap cable . Is this bad and will it end up not working . Or is it good silver wire cable .
link to this comment |
Select more comments
Your comment please