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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Sunday, 27 November 2011
J
James5:12 PM
Cambridge
When will the power for those muxes on very low power go back to normal?
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James's: mapJ's Freeview map terrainJ's terrain plot wavesJ's frequency data J's Freeview Detailed Coverage
Monday, 28 November 2011
K
KMJ,Derby1:28 AM
James: The SDN mux which is currently on C31 at 20kW will change frequency to C51 (8k mode) and increase power on 9th May 2012. Additionally Mux D3+4 and Mux HD will transfer to the main antenna on 27th June 2011. Although currently at full power the antenna currently in use does restrict the coverage slightly.If you are having reception problems with the COM muxes it could be that a group "A" aerial is in use. In such cases installation of a replacement or additional aerial will be required to cover the frequencies used by the COM muxes. Also check that Sandy Heath frequencies have been tuned in as it is possible that Tacolneston signals arriving from behind the aerial could also be found when scanning for channels.
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R
Roy Benford1:50 PM
St. Neots
Thanks Dave. My problem was compunded by the fact that my Sky TVLink was using Ch52. So I had to change that to a free channel before doing another re-tune of FreeView.
Incidentally, this page needs updating to reflect the change of channel.
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Roy's: mapR's Freeview map terrainR's terrain plot wavesR's frequency data R's Freeview Detailed Coverage
A
ALAN PEACHEY3:16 PM
Just had a email from the dear old BBC. First they said there was no way I could get a signal from Crystel Palace from my postcode (CB10). Also they they said that 2 neighbouring tranmitters never share the same frequencies, so therefore, why do they both share Ch31? The BBC dont half talk a load bollocks sometimes dont they?
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Tuesday, 29 November 2011
C
Chris Johnson12:44 AM
I have to agree with Michael Smith. I'm in Wisbech and for a brief time about three retunes back I was able to receive all the digital channels from Sandy Heath. Now I get zero signal strength from MUXC(52) and ARQB(48). Do the advertisers who pay for these channels know about the many people who cannot receive them. This whole switchover procedure has been a complete shambles and seems aimed at driving people away from terrestrial TV and towards Sky.
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Wednesday, 30 November 2011
C
Christina McCaffrey4:13 PM
Bedford
Aerial in loft.
interfernce after retuning on BBC1 and BBC2 on the last two days. ITV and Channel 4 are fine.
Any suggestions please?
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Christina's: mapC's Freeview map terrainC's terrain plot wavesC's frequency data C's Freeview Detailed Coverage
M
Mark Fletcher5:45 PM
Halifax
Christina McCaffrey,Bedford.Hard to say without a full postcode.Single frequency interference could be the issue here.The BBCA mux on Sandy Heath is on frequency 27,is your loft aerial polarised horizontally in which case it will be receiving transmissions as such from the main Sandy Heath transmitter.If it's polarised vertically then your transmissions will come from a local relay as such.
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Mark's: mapM's Freeview map terrainM's terrain plot wavesM's frequency data M's Freeview Detailed Coverage
Thursday, 1 December 2011
M
Mitesh Shah1:33 PM
At the start of switch over I was getting 141 DTV, 55 Radio, and 6 TV channels, after doing the last reset I only get 52 DTV, 20 Radio and 5 TV channels, WHY?
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Tuesday, 13 December 2011
B
brian7:15 PM
March
It appears that the Tx'er info above is out of date ie: Sandy Heath Mux C is now channel 52 (frequency ? )
Brian
link to this comment |
brian's: mapB's Freeview map terrainB's terrain plot wavesB's frequency data B's Freeview Detailed Coverage
A
ALAN PEACHEY8:43 PM
It was a chsnge of frequency from 67 to 52. I can assure you Channel 31 is still giving me a lot problems as it keeps breaking up because of the interference from Crystel Palace which uses the same channel 31 as well.
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