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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 26/02/2024 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.

Friday, 3 August 2018
Transmitter engineering

6:08 AM

SUDBURY transmitter - Freeview: BBC Digital TV Off Air; DSO related from 00:01 on 01 Aug to 04:30 on 01 Aug, HD Digital TV Off Air; DSO related from 00:01 on 01 Aug to 04:30 on 01 Aug. [BBC]

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Transmitter engineering's 148,992 posts xx flag
nick horrex

7:45 PM

does anyone know if the provider of this site still exists? Information re muxes is months out of date.

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nick horrex's 425 posts GB flag
Saturday, 4 August 2018

3:19 PM

Nick Horrex:

You have been told before that Briantist has not updated this website for some time and that he is the ob=nly person who can perform the updates. We regular contributors have no idea as to why he has not done so.

We have also stated that if you want details of multiplex allocations you should put a post code into the Digital UK Coverage Checker.

The fact that the channel allocations have not been updated on this website does not negate the value of it to those having reception problems as we contributors will usually refer them to the Coverage Checker for such information when relevant. Otherwise, we will use our considerable experience to offer guidance to those seeking assistance.

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MikeP's 3,056 posts PT flag
Monday, 6 August 2018

11:48 PM

Briantist: and anyone else reading, for the sake of clarity as of the 1st August, the muxes at Sudbury are as follows -

PSB1(BBCA) - UHF44; PSB2(D3&4) - UHF41; PSB3(BBCB HD) - UHF47; SDN - UHF29; ARQA - UHF31; ARQB - UHF37. All Muxes 100kW each. Aerial group K is better, Horizontal.

DigitalUK indicate no further channel changes are planned.

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Chris.SE's 4,083 posts GB flag
Chris.SE's: mapC's Freeview map terrainC's terrain plot wavesC's frequency data C's Freeview Detailed Coverage
Thursday, 9 August 2018
3:29 PM

Since the most recent upgrade I have lost all the Multiplex COM5 ARGA Arqiva A channels. I called Freeview who sent an engineer but he could not touch it as the main TV (commandeered by my husband of course) is linked to a Sky box. All the other TVs are freeview. Daughters and I very frustrated. Of course I have tried retune and restart but no joy. Connected to the Sky aerial via a splitter. Any ideas please? Freeview guy suggested 500 worth of rewiring! Thank you Government.

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Jo's 1 post GB flag

5:30 PM

Jo: Check the TV's for signal strength, etc. You havnt included a postcode, so we have no idea what sort of signal you are supposed to be getting, but it could be that Com5 is the canary in the coalmine, and the others are also low signal strength. So check the lot. Next, check you are tunedninto the right transmitter - TVs can lock onto a different transmitter, perhaps much further away.

If the signal is bad on all of them, then its a common cause, so look to where that is - perhaps a failing splitter or dodgy booster power supply.

What do you mean by a Sky aerial? That comes off a dish, so the assumption is that the signal comes off via coax throught the house, fed from either.

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MikeB's 2,579 posts GB flag
7:11 PM

Re lat post - for lily read July 2018

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Martin's 5 posts GB flag
Saturday, 11 August 2018
nick horrex

8:05 AM

thanks Mike, understood.

Incidentally, freeview here has been truly atrocious, regularly coming up with 'no signal ' on every multiplex. How I long for the days of 5 channels that worked.

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nick horrex's 425 posts GB flag

10:15 AM


Your reception problems prove there is something wrong with your system. There is no reported problem with the Sudbury transmitter and no one else is reporting any problems using it.

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MikeP's 3,056 posts GB flag
Monday, 13 August 2018

2:27 PM

Jo . Some of the Sudbury channels have moved to a lower frequency since the 1st of august . You probably now need a wideband or group K aerial. The retune is because under pressure from mobile phone companies the tv in Britain Europe and America have had to loose some frequencies. Freeview cannot give you a free aerial because your house can watch tv on sky . You will need to buy your own aerial. They can be bought for diy under 50 . Its the cost of an installer that might be 500 though it should be possible to find some one considerably cheaper than that.

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Hardy's 137 posts GB flag
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