Full Freeview on the Sandy Heath (Central Bedfordshire, England) transmitter
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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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Wednesday, 30 March 2011
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Mike Dimmick8:06 AM
Reading
Charlie: High-power digital services don't start until 6am. Between about midnight and 6am, the transmitter is off-air.
You should now be able to rescan your Freeview box and see whether a loft aerial is likely to work - although a wideband aerial small enough to fit in a loft often won't provide enough gain. You might get usable results from a log-periodic type. Still, you will nearly always get better results by mounting an aerial in clear space outside.
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Mike's: mapM's Freeview map terrainM's terrain plot wavesM's frequency data M's Freeview Detailed Coverage
B
Bob11:51 AM
Interestingly, a TVonics MDR-250 box I have couldn't find the BBC A mux this morning. It reported "Signal quality: None" on ch 27.
I found an RF signal attenuator fixed the problem - too much power from Sandy Heath !
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Dave Kimber11:56 AM
I retuned my Sony VTX-D800U STB this morning. I now find that BBC2 keeps switching after a few seconds to provide BBC1 programme, even though the box says it is still on programme 2. Selecting BBC2 by any means gives me a few secs of BBC2 then BBC1 again. If I leave the EPG on the screen, then BBC2 stays in the background. Surely the 2k to 8k switch would not do this?
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Dave Kimber1:26 PM
Update on my previous post: I have done a STB reset and now it stays on BBC2 OK.
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Mike Dimmick1:58 PM
Reading
Dave Kimber: there have been some reports of this on some Sony TVs up in Scotland. It may be a recurrence of a problem they had with Humax equipment a week or so ago. They seem to be using some new code for the 'Press Red' popup that appears during the news, or '(Red) SPORT' in sports programmes.
My hypothesis is that they've changed which MHEG program ID to run automatically when you select the channel, and the boxes still have a cached copy of a previous program with that ID that did something different (probably used for returning to the service you were watching when exiting from an interactive stream).
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Mike's: mapM's Freeview map terrainM's terrain plot wavesM's frequency data M's Freeview Detailed Coverage
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chrism2:17 PM
I excitedly retuned my TV this morning, and lo and behold BBC1/2/3 now have a nice strong reliable signal. Just one little thing - the data at the top of this page now lists BBC4 and the radio stations as being on both PSB1/C27 and MuxB/C67 (where they were before). And I definitely saw them coming up on C67 when tuning in. Is there another step here?
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Bob: Yes, this is a common situation at switchover - too much signal is as bad for digital reception as too little.
Remember to remove amplifiers first, before fitting attenuation devices.
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chrism: Yes, multiplex B is turned off on Wednesday 13th April 2011.
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