Full Freeview on the Sudbury (Suffolk, England) transmitter
 | Google Streetview |  | Google map |  | Bing map |  | Google Earth |  | 52.005,0.786 or 52°0'17"N 0°47'8"E |  | CO10 5NG |
The symbol shows the location of the Sudbury (Suffolk, England) transmitter which serves 440,000 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.
Are there any planned engineering works or unexpected transmitter faults on the Sudbury (Suffolk, England) mast?
Sudbury transmitter - Sudbury transmitter: Possible effect on TV reception week commencing 18/11/2024 Pixelation or flickering on some or all channels 
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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)
The Sudbury (Suffolk, England) mast is a public service broadcasting (PSB) transmitter, it does not provide these commercial (COM) channels: .
If you want to watch these channels, your aerial must point to one of the 80 Full service Freeview transmitters. For more information see the will there ever be more services on the Freeview Light transmitters? page.
Which Freeview channels does the Sudbury 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)
The Sudbury (Suffolk, England) mast is a public service broadcasting (PSB) transmitter, it does not provide these commercial (COM) channels: .
If you want to watch these channels, your aerial must point to one of the 80 Full service Freeview transmitters. For more information see the will there ever be more services on the Freeview Light transmitters? page.
Which BBC and ITV regional news can I watch from the Sudbury transmitter?
BBC Look East (East) 0.8m homes 3.2%
from Norwich NR2 1BH, 77km north-northeast (24°)
to BBC East region - 27 masts.
70% of BBC East (East) and BBC East (West) is shared output
ITV Anglia News 0.8m homes 3.2%
from NORWICH NR1 3JG, 78km north-northeast (24°)
to ITV Anglia (East) region - 26 masts.
All of lunch, weekend and 80% evening news is shared with Anglia (West)
Are there any self-help relays?
| Felixstowe West | Transposer | 1000 homes +1000 or more homes due to expansion of affected area? | |
| Witham | Transposer | 14 km NE Chelmsford. | 118 homes |
How will the Sudbury (Suffolk, England) transmission frequencies change over time?
| 1984-97 | 1997-98 | 1998-2011 | 2011-13 | 1 Aug 2018 | |||||
| B E T | B E T | B E T | E T | K T | |||||
| C29 | SDN | ||||||||
| C31 | ArqA | ||||||||
| C35 | C5waves | C5waves | |||||||
| C37 | ArqB | ||||||||
| C41 | ITVwaves | ITVwaves | ITVwaves | D3+4 | D3+4 | ||||
| C44 | BBC2waves | BBC2waves | BBC2waves | BBCA | BBCA | ||||
| C47 | C4waves | C4waves | C4waves | BBCB | BBCB | ||||
| C51tv_off | BBC1waves | BBC1waves | BBC1waves | ||||||
| C56tv_off | ArqB | ||||||||
| C58tv_off | SDN | ||||||||
| C60tv_off | -ArqA |
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 6 Jul 11 and 20 Jul 11.
How do the old analogue and currrent digital signal levels compare?
| Analogue 1-4 | 250kW | |
| SDN, ARQA, ARQB, BBCA, D3+4, BBCB | (-4dB) 100kW | |
| Analogue 5 | (-7dB) 50kW | |
| Mux 2* | (-14.9dB) 8.1kW | |
| Mux B* | (-15.2dB) 7.5kW | |
| Mux 1* | (-15.5dB) 7kW | |
| Mux A* | (-17dB) 5kW | |
| Mux C* | (-22.2dB) 1.5kW | |
| Mux D* | (-23.6dB) 1.1kW |
Which companies have run the Channel 3 services in the Sudbury transmitter area
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Monday, 23 May 2022
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StevensOnln14:43 PM
Rex Watson: FreeSports is broadcast on the COM7 multiplex which is closing next month, so it really isn't worth changing your aerial to try and receive another transmitter. Nothing has been announced regarding whether FreeSports or any other channel will move to another multiplex or whether they will leave Freeview.
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Richard Owen8:31 PM
When BBC 3 was taken online and removed from Freeview , Channel 5 took their HD slot .
When BBC 3 returned to Freeview it got a HD slot , although Chan 5 , kept their slot,
How was this unknown , by me ,HD Slot suddenly available ? Why didn`t BBC4 get it or another , broadcaster?
Hopefully someone knows , it seems a bit sly to me, to hide it unused.
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StevensOnln110:18 PM
Richard Owen: Channel 5 didn't get BBC Three's HD slot, they just took over the channel number and used broadcast capacity that was previously vacant. BBC Three shares the same capacity that is used by CBBC channel up to 7pm in the same way that BBC Four shares with CBeebies. When BBC Three was closed, CBBC's hours were extended to finish at 9pm so there wasn't space for BBC Four HD to begin at 7pm and share capacity with CBBC HD. The spare capacity available after 9pm was offered by the BBC to other broadcasters however none were interested in broadcasting a HD channel that could only start at 9pm each evening. In Scotland, CBBC HD's hours were later cut back to finish at 7pm so that the BBC Scotland HD channel could use the capacity in the evening, similar to how S4C HD is now broadcast from 7pm in Wales, resulting in the the relaunched BBC Three only being available in HD from transmitters in England and Northern Ireland on Freeview (transmitters in Scotland and Wales on have the SD version of BBC Three).
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Tuesday, 24 May 2022
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Rex Watson8:45 AM
I find it most odd that I can only watch 99 freeview channels, as the 122 channels from Sudbury are all at the same power. Any comment?
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Chris.SE3:49 PM
Rex Watson:
Apart from the fact you can't watch Radio stations! which channels are you not getting?
See Channel listings for Industry Professionals | Freeview for which channels are carried on which multiplex.
You have checked that you are correctly tuned to the Sudbury UHF channels? and Sudbury is still listed for Planned Engineering. See my reply Sudbury (Suffolk, England) Full Freeview transmitter | free and easy
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Wednesday, 22 June 2022
N
nick10:04 PM
here on the east coast at this time of year we regularly get 'no signal' appear on screen. Why is it that the BBC and ITV multiplexes are the last to succumb to this?
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nick10:07 PM
here on the east coast at this time of year we often get 'no signal' appear on screen . Why is it that the BBC and ITV multiplexes are the last to succumb to this?
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Thursday, 23 June 2022
C
Chris.SE1:24 AM
nick:
Hi Nick, ignore any fatal error message when posting, the posts do get through although there can often be a delay (due to caching, not the error).
Even with your technical knowledge, I'm sure you know you are in a very tricky location and even small changes to aerial location can make a big difference to reception. I assume you've checked out your predicted reception, it's not clever, even the Aldeburgh relay can be poor in some spots.
Whilst the frequency planners can and sometimes do make mistakes, I'm sure that in coastal locations like yours where there is potential for interference from the continent in "lift" conditions (Tropospheric ducting/Temperature Inversion) and likewise interference to them from us, the UHF channels chosen for the primary services (PSBs in our case) will have been to minimise this possibility, hence what you are experiencing. However there's still the possibility of interference not just from the continent, but from other UK transmitters in the "wrong" lift conditions. In your case, considering your aerial direction then Oxford and Wenvoe come to mind as possibilities, but even then under extreme conditions interference could come from anywhere using the same frequencies.
Are you using a "traditional" yagi, or still using a home-brew? If it's a traditional yagi then you're probably aware that it'll have a bit more gain on the higher channels which will help a bit with the BBC (PSB1) and ITV/C4/C5 (PSB2) muxes.
These days a quality Group K or Group B aerial can have similar performance BUT it will depend on the individual aerial as to which will have the best gain towards the bottom end of the band as well as the top end.
Attempting to position an aerial to make use of building screening from the most common source of interference (the continent) can conflict with the height required to get adequate signal from the intended source. Use of stacked arrays can sometimes help reducing sidelobes etc. but this is much more of a specialised technique.
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Friday, 24 June 2022
R
Rex Watson3:39 PM
Any news about what will happen to Freesports? It seems odd that Sky will just abandon it.
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StevensOnln14:16 PM
Rex Watson: Freesports have announced that they will be leaving Freeview next week but will continue to broadcast on Sky and cable, as well as via their online player FreeSportsPlayer.tv Live and On Demand and Samsung TV Plus.
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