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Full Freeview on the Sudbury (Suffolk, England) transmitter

first published this on - UK Free TV
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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.

This transmitter has no current reported problems

The BBC and Digital UK report there are no faults or engineering work on the Sudbury (Suffolk, England) transmitter.

Choose from three options: ■ List by multiplex ■ List by channel number ■ List by channel name

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.

 H max
C44 (658.0MHz)229mDTG-100,000W
Channel icons
1 BBC One (SD) East, 2 BBC Two England, 9 BBC Four, 23 BBC Three, 201 CBBC, 202 CBeebies, 231 BBC News, 232 BBC Parliament, plus 16 others

 H max
C41 (634.0MHz)229mDTG-100,000W
Channel icons
3 ITV 1 (SD) (Anglia (East micro region)), 4 Channel 4 (SD) South ads, 5 Channel 5, 6 ITV 2, 10 ITV3, 13 E4, 14 Film4, 15 Channel 4 +1 South ads, 18 More4, 26 ITV4, 28 ITVBe, 30 E4 +1, 35 ITV1 +1 (Anglia east),

 H max
C47 (682.0MHz)229mDTG-100,000W
Channel icons
46 5SELECT, 101 BBC One HD East, 102 BBC Two HD England, 103 ITV 1 HD (ITV Meridian Southampton), 104 Channel 4 HD South ads, 105 Channel 5 HD, 106 BBC Four HD, 107 BBC Three HD, 204 CBBC HD, 205 CBeebies HD, plus 1 others

 H max
C29 (538.0MHz)186mDTG-100,000W
Channel icons
20 Drama, 21 5USA, 29 ITV2 +1, 32 5STAR, 33 5Action, 38 Channel 5 +1, 41 Legend, 42 GREAT! action, 57 Dave ja vu, 58 ITV3 +1, 59 ITV4 +1, 64 Blaze, 67 TRUE CRIME, 68 TRUE CRIME XTRA, 78 TCC, 81 Blaze +1, 83 Together TV, 91 WildEarth, 93 ITVBe +1, 209 Ketchup TV, 210 Ketchup Too, 211 YAAAS!, 267 Al Jazeera English, plus 30 others

 H max
C31- (553.8MHz)228mDTG-8100,000W
Channel icons
11 Sky Mix, 17 Really, 19 Dave, 31 E4 Extra, 36 Sky Arts, 40 Quest Red, 43 Food Network, 47 Film4 +1, 48 Challenge, 49 4seven, 60 Drama +1, 65 That's TV 2, 70 Quest +1, 74 Yesterday +1, 75 That's 90s, 233 Sky News, plus 11 others

 H max
C37 (602.0MHz)228mDTG-8100,000W
Channel icons
12 Quest, 25 W, 27 Yesterday, 34 GREAT! movies, 39 DMAX, 44 HGTV, 52 GREAT! romance, 56 That's TV (UK), 63 GREAT! romance mix, 71 That’s 60s, 73 HobbyMaker, 82 Talking Pictures TV, 84 PBS America, 235 Al Jazeera Eng, plus 18 others

DTG-8 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?

regional news image
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
regional news image
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 WestTransposer1000 homes +1000 or more homes due to expansion of affected area?
WithamTransposer14 km NE Chelmsford.118 homes

How will the Sudbury (Suffolk, England) transmission frequencies change over time?

1984-971997-981998-20112011-131 Aug 2018

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

Oct 1959-Feb 2004Anglia Television
Feb 2004-Dec 2014ITV plc
Feb 1983-Dec 1992TV-am•
Jan 1993-Sep 2010GMTV•
Sep 2010-Dec 2014ITV Daybreak•
• Breakfast ◊ Weekends ♦ Friday night and weekends † Weekdays only. Sudbury was not an original Channel 3 VHF 405-line mast: the historical information shown is the details of the company responsible for the transmitter when it began transmitting Channel 3.

Wednesday, 8 February 2023
Transmitter engineering

3:09 PM

SUDBURY transmitter - DAB: Off the air due to essential engineering from 8 Feb 10:50 until 8 Feb 11:32. . [BBC]

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Transmitter engineering's 152,307 posts GB flag
Wednesday, 22 March 2023
David Charles Rogers
12:29 AM

my reception seems alright during day and starts breaking up late evening, l am wondering if there is some sort of work being done, but on checking it states everything is good.
my postcode is CM9 6GE flat 7,Maldon Essex.
could you confirm if this is the case.

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David Charles Rogers's 1 post GB flag
David's: mapD's Freeview map terrainD's terrain plot wavesD's frequency data D's Freeview Detailed Coverage

12:52 AM

David Charles Rogers:

There doesn't seem to be any reported faults that I can find, nor is Sudbury listed for Planned Engineering at present, however there are weather conditions that may affect some signals for some at this time, but if this is a regular problem rather than one that's just occurred that's probably not the case.

Which channels are you noticing the problems with?
Your location is predicted to have possible variable reception for the SDN/COM4 & ArqA/COM5 multiplexes.
See Channel listings for Industry Professionals | Freeview for TV channels are carried on which multiplexes.

It may be worth checking in your TV tuning section that you are correctly tuned to Sudbury's UHF channels as more than one transmitter could be picked up at your location.
The correct UHF channels are as listed at the top of the page.

If your tuning is all correct, it would be worth checking with your neighbours (as you are most likely on a communal system in a block of flats) to see if they have the same problems. Even if they don't it might be a good idea to speak to the management about getting your connection checked out, or the whole installation if neighbours have the same problem.

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Chris.SE's 4,232 posts GB flag
Monday, 17 April 2023
James Knights
8:11 AM

We live in Howe Green Chelmsford and have had no picture on two of our Freeview T Vs for some time. I was told it was because the Sudbury mast was being repaired, I have tried several times to retune it without success. Our Sky TV is fine. Is there any way this can be rectified? Many thanks, James Knights

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James Knights's 2 posts GB flag
James Knights
8:14 AM

Post Code CM27TH

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James Knights's 2 posts GB flag

9:43 AM

James Knights: I can't see any engineering work listed for Sudbury and although you are 38km away you are predicted to receive a strong signal on all multiplexes. Are both TVs connected to the same aerial? If so, is there either a powered amplifier or passive splitter to split the cable? As a starting point, it would be worth checking all the cables and connections as far as you can safely access and also check that the amplifier is powered on if there is one.

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StevensOnln1's 3,645 posts GB flag
Tuesday, 18 April 2023

6:17 AM

Chris SE,
I note your comment that certain areas may hage problems with SOME multiplexes. Why so? Surely if they have problems it will be with ALL multiplexes.

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nick's 431 posts US flag

6:18 AM

IfI get problems, they are worst with the multiplex using channel 37. Why?

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nick's 431 posts US flag

3:05 PM


It all depends on weather conditions, lay of the land, line-of-sight to various transmitters, whether the signals pass over largish areas of water etc. and which transmitters are co-channel.
RF propagation is very frequency dependent and also on the nature of the atmosphere at the particular time as well as the extent of any area with particular conditions, so one specific UHF channel may get propagated differently from another.

As you've never given a full postcode or one for a very nearby pub/shop/prominent building your predicted reception for C37 may be poorer than some of the others.
Your aerial may have a peaky response which is not as good for C37 as it might be for others (whether it's home brew or bought!). So all in all, difficult to know why, or indeed where particular interference may come from most of the time.
Whenever I glance at Dx reception reports from people on the east coast I don't recall C37 being mentioned, C39 is quite common. Trying to find out which Netherlands or other countries transmitters that side of the North Sea use particular channels is almost impossible as I can't readily find reliable sources.

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Chris.SE's 4,232 posts GB flag
Wednesday, 3 May 2023

10:55 PM

Chris SE,
Thanks. IP15 5HG
Signal on all multiplexes is good, but 37 is the one that goes first. This is using any aerial,and odd because it is not at the exteme ends but nicely in the middle.
We don't use 39!
You seem to be suggesting the Dutch, my thought too.
Can you tell me where to look for the DATE we send our messages? Just seeing the time they are sent is no use!

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nick's 431 posts US flag
nick's: mapN's Freeview map terrainN's terrain plot wavesN's frequency data N's Freeview Detailed Coverage
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