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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.

Are there any planned engineering works or unexpected transmitter faults on the Sudbury (Suffolk, England) mast?

SUDBURY transmitter - DAB: Off the air due to essential engineering from 14 Jun 12:29 until 14 Jun 12:39. . BBC

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.

Monday, 9 May 2016

5:22 PM

I am not pleased that Sudbury describes itself as main transmitter yet we no longer get Al Jazeera. This is a misleading description.
I went to a lot of trouble to pick up this transmitter as opposed to our local 'light' one and now it fails to do what it claims.
Why does it not carry the extra muxes?
Why could not Al J start using channel 133 again so we can see it?

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nick's 431 posts GB flag
Tuesday, 10 May 2016
10:43 AM

In response to the snail, I live in Chelmsford CM1 7DW and have checked this morning and can receive all Sudbury channels except 47 (I don't have Freeview HD). Some in Chelmsford receive Crystal Palace, some Sudbury and some both transmitters; it is very much a street by street situation and I don't know what snail should be watching as we are on the other side of Chelmsford 44m a.m.s.l. and with a good sight line to Sudbury

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Chris's 7 posts GB flag
Chris's: mapC's Freeview map terrainC's terrain plot wavesC's frequency data C's Freeview Detailed Coverage
Wednesday, 11 May 2016

2:15 PM


The presence or absence of Al Jazeera does not define a Full Service transmitter. All transmitters carry all the PSB muxes and the Full Service ones carry many of the COM muxes. 'Lite' transmitters do not carry the COM services. Whether a particular transmitter carries any of the optional channels, like Al Jezeera, is entirely up to that particular broadcaster. If they don't want to be carried on any of the muxes allocated to Sudbury then they don't have to pay for it.

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MikeP's 3,056 posts GB flag
MikeP's: mapM's Freeview map terrainM's terrain plot wavesM's frequency data M's Freeview Detailed Coverage
Monday, 6 June 2016
Richard Cooper

9:46 AM

Good Morning. This is Richard in Norwich on Monday 6th June, writing at 9:30 a.m. I normally receive my tv signals from Tacolneston, 8 miles down the road from here, however, this morning, I did a re-tune and discovered I had duplicate channels for the PSB 1 and PSB 2 services. A closer inspection revealed that these were coming in on channels 44 and 41 respectively, which must be from Sudbury, more than 50 miles away! This must be due to tropospheric 'lift' or 'inversion' conditions. I wonder how long it will last?

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Richard Cooper's 466 posts GB flag
Richard's: mapR's Freeview map terrainR's terrain plot wavesR's frequency data R's Freeview Detailed Coverage

2:39 PM

Richard Cooper:

This atmospheric effect usually lasts a few days while the air temperature is quite high and there are conditions to create temperature inversions, others on this site also give information on this natural phenomenon.

Whilst these conditions last you should *not* retune your equipment else you are likely to lose channels rather than gain!

That you found signals from 50 miles away proves it is this effect. Sometimes, signals from several hundred miles away can be received under these conditions. In the 'old' analogue days it caused interference but with digital encoding it tends to cause apparent loss of some signals - which is why you should not retune!

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MikeP's 3,056 posts GB flag
Thursday, 9 June 2016

7:33 AM

over the last few days we have regularly lost ALL multiplexes on all tvs on all aerials. This is doubtless due to the Dutchmen who have been blotting out Sudbury for decades. Do those who constantly advertize the 'benefits' of freeview not take this on board?

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nick's 431 posts GB flag
Richard Cooper

9:23 AM

nick: Hi, Nick. The main advantage of Freeview is that it is less expensive and easier than the other options for watching live television. The number of channels on offer is acceptable to the majority of tv viewers in the UK. The Freeview transmitter network as well as the Freeview digital tv systems in use were both planned as carefully as possible so as to minimise the effects of tropospheric scatter, 'lift', atmospheric or European interference, whatever you want to call it, so, 'Yes', the proponents of Freeview did take this on board! Out of interest, two questions for you for starters: (1). How far are you from the Sudbury transmitter? ( Your postcode would be a bonus) and (2). What is your Freeview equipment? i.e. is it a cheap or more expensive setup? The cheapest Freeview boxes have a poor reputation because they use poor quality electronic components, resulting in poor performance, poor signal sensitivity and poor signal quality. Assuming you've read this post. I'd appreciate your reply to ascertain whether we can advise you further. Richard, Norwich, Thurs. 9th. June, 2016 at 09:20 a.m.

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Richard Cooper's 466 posts GB flag
Richard's: mapR's Freeview map terrainR's terrain plot wavesR's frequency data R's Freeview Detailed Coverage
11:52 AM

Dunmow cm6 1xu no signal whatsoever since couple of days!

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Paul's 1 post GB flag
Richard Cooper

12:49 PM

Paul: Hi, Paul. Quoting from the official Digital UK website, "Latest News: Viewers in some parts of the UK may experience temporary disruption to their TV signal today due to high atmospheric pressure. We advise that you do not retune - reception will return to normal once this weather system passes." Should have passed us by by Saturday, all being well! Richard, Norwich.

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Richard Cooper's 466 posts GB flag
Richard's: mapR's Freeview map terrainR's terrain plot wavesR's frequency data R's Freeview Detailed Coverage
Saturday, 9 July 2016

5:15 PM

Hi Richard,

Humax! But have cheaper ones which are no worse.
IP15 5HF
Use Sudbury with super aerial as local xmitter is 'light.'
Near 100% signal/quality, all muxes, but gets knocked out entirely at the slightest cause, Dutchmen, rain, fog.
Not impressed, used to get interference on analogue, but never 'no signal.'

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