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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Monday, 2 November 2015
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Matt9:09 PM
Thanks for the reply, JB38.
Then in that case this new digital system is flawed. The TV is totally unwatchable in these weather conditions. Back when it was analoge you could at least watch TV, even with a bad picture.
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MikeB9:22 PM
Macclesfield
Matt: The weather conditions would have exactly the same effect, be it analogue or digital. When I was growing up on the South Coast, such conditions used to mean French TV, rather than Southern. In fact, thanks to digital, that no longer happens.
JB38: Are you getting the same problem? I'm on Waltham, so I can't check (although that might explain the Pop TV signal falloff), but it would be useful to see where the problem is actually happening.
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MikeB's: mapM's Freeview map terrainM's terrain plot wavesM's frequency data M's Freeview Detailed Coverage
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Andrew Mills9:27 PM
I live in Peterborough and have been losing TV signal for periods of 50 to mins at a time. Previous to tonight we had no such problems.
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Matt9:39 PM
It did, Mike? I'm in my 30's. Growing up i can remember either having a good picture, a weak but watchable picture, and even sometimes 2 channels ghosting into one another. But it was always watchable regardless. Even with a wire coat hanger jammed into the back of the TV as an aerial. lol Everyone here seems to say the same as me.
Neighbours are having the same problem btw. We both just did another re-tune and lost loads of stations. The ones that remain are patchy.
We never had this fannying around with analouge did we. No having to constantly check connections, climbing up in the loft, having to come online to find out what the problem is etc etc etc. Back in the days of analouge if the picture was a tad crap you would simply twiddle the aerial on the back of the TV until you got a watchable picture. Happy days! =)
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jb389:45 PM
Matt: Yes, quite so, as analogue reception was far more robust as far as coping with interference is concerned, albeit that double images /ghosting, or images sweeping across the screen in the back ground were commonly experienced during high pressure related problems, digital signals unfortunately not being near so tolerant, picture break up or even vanishing on experiencing relatively low levels of interference.
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jb3810:04 PM
MikeB : Sorry for the delay in replying. Yes, the situation is still the same when tested a few minutes ago, great signal but accompanied by zero quality. C31 still OK though!
Reception of Mux 26 (Pop) is not really possible in my area, at least not in an even remotely reliable fashion.
Of course PSB3 HD reception also vanished for a few hours on Sunday, returning later on in early evening, but though hopefully this issue will have cleared up by Wednesday.
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MikeB10:36 PM
Macclesfield
jb38: You really don't want to watch Pop - my children like it, but its the TV equivalent of a Happy Meal!
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MikeB's: mapM's Freeview map terrainM's terrain plot wavesM's frequency data M's Freeview Detailed Coverage
Tuesday, 3 November 2015
J
jb3812:14 AM
MikeB : Well, even if I could receive Mux26, there is no danger of that happening, as anything remotely suggestive of a musical(?) assault on the ears, or alternatively orientated along the lines of sport of any description, automatically triggers the "change channel" or "off" button on the TV in my household.
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Paul R4:45 PM
Matt: Had the same at NN29. Panny TV. Funnily enough, without touching anything, back to 10 for strength and quality today. Interestingly though, my aerial goes through a BT Vision box first and had no problems watching that. However with quality back to 10 this afternoon I suspect a weak signal had something to do with it.
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Matt7:21 PM
Our stations came back early hours this morning. I did a retune of the 2 main tv's and 2 set top boxes. 2 of the TV's and 1 of the set top boxes picked up every single station going. I think all from the same transmitter? BBC1 is on channel 1, BBC1HD is 101. TV's all say Cambridge and Bedordshire as the area. Arieal pointed to Sandy Heath. But oddly, the second set top box only picked up some stations and was missing BBC1 and BBC1 HD altogether. So i did a second retune of that box and it now has all stations the same as rest. Odd!
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