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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Sunday, 10 April 2011
M
Mr M Donnelly4:00 PM
Felixstowe
Does high pressure weather conditions affect DTV reception?
Since the improved weather last week and this weekend I have lost nearly all my freeview reception.
I live in Felixstowe and had a new ariel fitted last year and have retuned my tv to try and sort this but to no avail.
Any advice would be most welcome.
Postcode IP11 9BE
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Mr's: mapM's Freeview map terrainM's terrain plot wavesM's frequency data M's Freeview Detailed Coverage
Monday, 11 April 2011
Mr M Donnelly: Actually, the problem is the analogue transmission, rather than the digital ones - please see What is the Inversion Effect and why does it effect my Freeview TV reception?
| ukfree.tv - independent free digital TV advice .
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G
Gary Barker8:13 PM
Colchester
Can you tell me why we keep getting interference; clicking of sound and picture distorting/freeze frame/strips of colour, mostly on ITV usually improves after TV has been on a while but not always. Our aerial is on the chimney stack.
Is there anything we can do to improve this situation? We have no problems on our non freeview TV.
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Gary's: mapG's Freeview map terrainG's terrain plot wavesG's frequency data G's Freeview Detailed Coverage
Tuesday, 12 April 2011
Friday, 15 April 2011
N
Nick8:48 AM
Woodbridge
We are on the east coast and regularly get our Sudbury signal, otherwise strong, wiped out by the Dutch under adverse atmospheric conditions, this can apply to all five channels at times. I am wondering if the Dutch will also knock out freeview when it arrives in July, as they doubtless will continue putting out their analogue on the same channels as our digital.
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Nick's: mapN's Freeview map terrainN's terrain plot wavesN's frequency data N's Freeview Detailed Coverage
B
brian1:15 PM
Nick,
Dutch analogue has closed. I suppose you may get digital interference from the low countries once Sudbury switches in July but it will be different, the signal will either be there or it will not (you won't get the 'herringbone' type of interference you get with analogue). Hopefully with the power up you will be ok most of the time !
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Saturday, 16 April 2011
N
Nick9:40 AM
Woodbridge
Dear Brian,
Thank you for your comments. So the inerference we have had occasionally over the last few days on analogue is caused by Dutch digital. That is not a good sign for the hopes after switchover.It is not always herringbone, sometimes the signal gets weaker and weaker then almost disappears!
Looks like freesat is the way forward, which means a new tv and yet another box.
Please also comment on this point. I have looked at a number of flat tvs in shops. In general, I think the picture inferior to my old crt, whether on ordinary or HD. The exception is when they are showing, for example, a football match in HD or are showing something via dvd. HD on Eastenders etc seems pretty much the same as non HD, and worse that on my old tv.
Kind regards.
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Nick's: mapN's Freeview map terrainN's terrain plot wavesN's frequency data N's Freeview Detailed Coverage
N
Nick9:53 AM
Woodbridge
Dear Brian,
A friend in Aldeburgh is currently on Sudbury and with good aerial and booster gets A1 reception even on C5, except when there is Dutch interference. Will the xmitter at Sudbury cover precisely the same area when digital or must we bite the bullet and switch to the Aldeburgh xmitter with its fewer channels? Incidentally, bedroom sets are on Aldeburgh, again on good aerial, but the Dutch even mess this up at times.
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Nick's: mapN's Freeview map terrainN's terrain plot wavesN's frequency data N's Freeview Detailed Coverage
Monday, 18 April 2011
B
brian11:51 AM
Hello Nick,
On an analogue picture another unwanted analogue signal on the same channel causes the herringbone' and buzzing effect you have been used to over the years.
On an analogue picture another unwanted digital signal on the same channel causes the picture to become snowy and in extreme cases disappear completely.
On a digital picture an analogue signal on the same channel causes pixilation , sound drop out and lock up. in extreme cases the picture disappears.
On a digital picture another unwanted digital signal on the same channel will cause the same as above but it will happen a lot quicker than analogue interference.
This is how I understand it anyway!
The best thing I can say with Sudbury is wait and see. The signal will be raised in July but you are in a vulnerable position. All the coastal Dutch channels were already using different channels to Sudbury to try and reduce interference (except CH5) but the sea path is so good for carrying unwanted signals that likely you could get hit from transmitters as far away as France and Germany.
In addition they are moving the Sudbury channels around again after July 2011 so what might not be great then could be ok later. Also bear in mind for most of the year and especially during the winter there will likely be no problems at all (cold comfort I know if you are trying to watch the world cup final in June) !
I would think if anyone is getting herringbone' problems on Aldeburgh now it is likely to be the huge mast at Crystal Palace that is causing the problem. There is no analogue left in the low countries and Northern France.
There is no way of telling just how good Sudbury digital will be after switchover where you are, you only have to move the aerial one metre and the signal would be different.
What I would say is that although the coastal area is obviously low lying there is probably not a huge hill between you and Sudbury so I would hope the main channels BBC1/BBC2/ITV1 etc would be able to penetrate after power up. Greater brains than mine will be able to answer this though.
I will leave your CRT v Flatscreen question to someone else. It is something I have heard several people comment on but again someone with greater technical knowledge than me will be able to comment..
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N
Nick5:05 PM
Woodbridge
Thank you for such a long and detailed answer. It is snow and near loss of picture. Seems like the dutch digital IS doing the damage to our analogue. I thought the path of digital meant it didn't bounce down.I suppose we will have to wait and see if their dig hits our dig.
please don't forget to comment about flat tvs, if that is in your remit.
Thanks again.
| link to this comment |
Nick's: mapN's Freeview map terrainN's terrain plot wavesN's frequency data N's Freeview Detailed Coverage
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