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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 - Sudbury transmitter: Possible effect on TV reception week commencing 19/02/2024 Pixelation or flickering on some or all channels Digital tick

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 ITVBe +1, 59 ITV3 +1, 64 Blaze, 67 TRUE CRIME, 68 TRUE CRIME XTRA, 78 TCC, 81 Blaze +1, 83 Together TV, 89 ITV4 +1, 91 WildEarth, 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), 61 GREAT! movies extra, 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, 26 March 2012
Dave Lindsay

11:54 PM

Nick: The list of BBC national DAB transmitters is here:

BBC - Help receiving TV and radio - Transmitters

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Dave Lindsay's 5,724 posts GB flag
Tuesday, 27 March 2012

10:30 AM

But the Sudbury one is the one we have always had, on which 95% of aerials are directed and by far the strongest.

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Nick's 425 posts GB flag
Thursday, 29 March 2012
10:34 PM

Thanks whoever runs this site.

Due to the wife recording so much rubbish at the same time on sky and then going to bed I thought I would see what was on film4 via Freeview tonight. To my surprise I no longer had it. Half an hour of Google-fu later and this is the only place that I can find any information on why.

Personally I think the situation is disgusting.

Anyway a question. Would getting a wide band aerial make a difference to the signal I receive? How do I tell if I already have a wide band aerial?

I should add that as far as I am aware I had all Freeview (including HD) channels once they turned of the analogue signal but only a view (if any) before, and that I am in the CO4 area.

Thanks for any help.

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Kraig's 1 post GB flag

10:55 PM

Wherever the DAB signal comes from, it does not reach IP12.

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Nick's 425 posts GB flag

11:29 PM

Kraig: Its very doubtful if it would (if you dont already have one) as the multiplex that Film 4 uses is temporarily on very low power and numerous people located at about your distance from the station (9 mls) and up to about 15 mls are having problems trying to receive it, basically due to their tuners being slightly desensitized by the massive differential in power between the main BBC mux on 100kw compared to the 2.2Kw used by ArqB(film 4 etc).

There isnt really anything you can do about it at present, as the situation will be rectified come June 27th when the low powered multiplexes go over to high power operation.

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jb38's 7,179 posts GB flag
Friday, 30 March 2012
Mark Fletcher

12:53 AM

Kraig.The answer to your question is if your aerial is tipped black on its ends then it is a group W wideband aerial,if it is tipped brown on its ends then it is a group E semi-wideband aerial optimised for the middle-upper bandwidth between frequencies 35-68/9.

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Mark Fletcher's 673 posts GB flag
Mark's: mapM's Freeview map terrainM's terrain plot wavesM's frequency data M's Freeview Detailed Coverage
Saturday, 31 March 2012
Kevin Hodges

10:58 AM

Kraig: Try this link, contains everything (and more) you'll need to know
Aerials, TV Aerial and Digital Aerial (CM29SG)

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Kevin Hodges's 27 posts GB flag
Monday, 2 April 2012
7:39 PM

Since the 28th March 2012 i've lost Film 4, ITV4 and other stations, i've tried re-scanning etc but still can't get them back.

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Mike's 1 post GB flag
Mike's: mapM's Freeview map terrainM's terrain plot wavesM's frequency data M's Freeview Detailed Coverage
9:22 PM

try Simon at alpha aerials 07766544616
Top bloke sorted my problems last month

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steve's 3 posts GB flag
Dave Lindsay

9:35 PM

Mike: I must point out that the multiplex that carries Film 4, ITV4 and others is on low power until 27th June from Sudbury. Therefore, it is likely that the problem will rectify itself then (if not before) and therefore that any remedial work (and expense) will be to provide reception of those channels between now and 27th June.

What has probably happened is that the level of the signal has dropped slightly, putting it below the threshold that your receiver needs to resolve a picture. You will need to keep manually tuning to channel 63 until it comes back.

Had you not carried out a rescan, you could have simply switched over to one of the affected programme channels to see whether they are back. In circumstances such as yours, the outcome of rescanning usually only serves to loose the programme channels from the receiver's memory.

Where a signal is below the level at which the receiver will work, retuning won't make any positive difference. If the signal level increased a little to produce a picture, it would do it irrespective of the retuning and if it didn't, then you loose it from the listings.

For Sudbury, there is no need to retune until 27th June, it will not achieve anything.

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Dave Lindsay's 5,724 posts GB flag
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Please post a question, answer or commentIf you have Freeview reception problems before posting a question your must first do this Freeview reset procedure then see: Freeview reception has changed, Single frequency interference, and Freeview intermittent interference.

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