Full Freeview on the Sudbury (Suffolk, England) transmitter
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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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Tuesday, 3 July 2012
Nick: I said that your box tunes itself to Aldeburgh because in your posting at 10:12AM today, you said "my box tunes itself to stations from ch23, Aldeburgh".
You said subsequently in your posting at 12:12PM that your Aldeburgh aerial has an amplifier but the Sudbury one doesn't. Are these diplexed together or are they fed separately into your lounge (allowing you to connect to either but not both) or have you "combined" the feeds in some other way?
If the Aldeburgh aerial is connected, then just turn off the power to the amp, leave the aerial in during all of the scan. Turning off the power to the amp will mean that no signal will come out of it.
Or, if you still need to make your receiver avoid Aldeburgh during its scan, plug the aerial in when it gets to 30%. Some devices are more helpful than others, so obviously I can only be general. If it gives percentage progress, then 30% of the scan (which runs from 21 to 69) is about C35. If it gives no percentage and no UHF channel number and is simply a bar the goes across the screen, then you will have to guess or improvise. For example, can you hold a ruler up to the screen and measure the bar and hence work out roughly where the target point is for plugging in the aerial?
The target area is from 15% to 40% so there is quite a big area to aim for. I have calculated these on the basis of the highest channel from Aldeburgh and the lowest from Sudbury. If it has manual tuning, then use it to add any that are missing, if you get the aerial in a bit too late.
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Nick: It may be that you will have to trial PSB reception from each transmitter to work out which is best. With digital reception, variable or poor reception may only become apparent at certain times, e.g. momentary freezing may be intermittent. The automatic tuning process is unlikely to be able to make this decision for you.
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Nick1:08 PM
Dave, I have misled you.
I have no Aldeburgh aerial at either of my locations, but the signal is strong. I need to know how to tell whether I am watching the progs from ch 23 or ch41, he latter theoretically being stronger, although I take your point about unplugging the aerial, which gives my fingers a tingle when I plug in.
I cannot find the thing you referred to to tell me which muxes are on which channels, but, one up to me, have found the freesat box can be manually tuned to get Pick and Challenge, both in plus 1 for some reason.
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Nick1:24 PM
Aldeburgh
Can anyone tell me what exactly is included as PSB? Obviously not ITV 3. If the Aldeburgh transmitter included this rather than all the plus ones, Gay Rabbit etc, I would settle for this, rather than all the aggro from Sudbury.
I think if there is a regulator for how this freeview is set up, he must be money for old rope.
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Nick's: mapN's Freeview map terrainN's terrain plot wavesN's frequency data N's Freeview Detailed Coverage
Nick: If a receiver gives information as to what channel/frequency it is tuned to, then this is usually given on the signal strength screen. A few don't, so there is little way of knowing, particularly if two possible transmitters broadcast the same regional programming.
Not giving this information is poor design in my opinion and it is not confined to "cheapo" devices. I came across a Sony RDR-HXD860 which gives no clue as to which UHF channel it is tuned to. I have a RDR-HXD870, which I believe superceeded it and that does give the channel number on the strength screen.
Some use frequencies instead of chanel numbers and C28 is 530.0MHz and C41 is 634.0MHz.
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Nick: I'm not familiar satellite receivers as I've never used one. However, I have read that "Freesat" branded set-top boxes will automatically tune in all services that are part of the Freesat offering. Other free-to-air channels can, I understand, be added manually. Presumably this is where manual tuning is available (I have no idea whether some devices are more restrictive than others, as is the case with terrestrial receivers).
See here:
List of free-to-air channels at 28°E - Wikipedia, the free encyclopedia
Obviously this Wikipedia page is not forced to be up-to-date or correct.
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Nick: The full list of Freeview services by multiplex are here (those with a bullet in the "E"/England column apply):
DMOL Post-DSO Multiplex Channel Allocations
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Nick2:04 PM
Aldeburgh
Thanks Dave.
It strikes me that those on Dover are very fortunate. I can get it at the moment, though probably not in the winter, [struggled to get analogue in the winter.] They have their transmitter digitalised and all the channels come through straight away. Here, on Sudbury, they are still piddling about a year after switchover. Dover are also fortunate that all the channels used seem to be within the old group c aerial group, whereas we have to use wideband, and by definition not high gain, aerials to cover channels as far apart as 41 and 60.
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Nick's: mapN's Freeview map terrainN's terrain plot wavesN's frequency data N's Freeview Detailed Coverage
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Nick2:06 PM
Aldeburgh
Dave, do you know which stations are classified as public service? Obviously not ITV 3.
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Nick's: mapN's Freeview map terrainN's terrain plot wavesN's frequency data N's Freeview Detailed Coverage
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