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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.

Thursday, 16 June 2011

11:17 PM

Dear KMJ,
You have thrown a spanner in the works. So from next month we will not have 75kw as promised at the top of this page, and we may still struggle to receive?

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Nick's 425 posts GB flag
Friday, 17 June 2011

7:05 AM

I also thought that there would be a significant power increase at DSO on 20th July?

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lisa's 28 posts GB flag
lisa's: mapL's Freeview map terrainL's terrain plot wavesL's frequency data L's Freeview Detailed Coverage

9:33 AM

Nick: From DSO stage 2 you will unfortunately only have 14kW on MuxA, 3kW on Mux ArqA (changes mode to 8k), and 2.2kW on Mux ArqB (changes mode to 8k). Mux ArqB changes frequency on 16th November 2011 but remains at 2.2kW. This situation continues until 27th June 2012 when all three COM muxes change to high power working on their intended post DSO frequencies. SDN changes to 8k mode on that date.

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KMJ,Derby's 1,811 posts GB flag

9:44 AM

lisa: There is a significant power increase to 100kW on the PSB muxes only at DSO. The COM muxes switch to high power working on 27th June 2012. Due to the mode change on Mux Arqa and Mux ArqB some viewers might experience a deterioration in reception on these two muxes despite a small power increase on 20th July 2011.

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KMJ,Derby's 1,811 posts GB flag

10:07 AM

Thanks KMJ, so we will have full power on the 'sensible' channels, ie all the ITV's, BBC's, 4 and 5 from July? What power for 'Challenge?'
Do you know why I get a slightly smaller but much clearer/sharper picture on my widescreen crt from Sky using aerial connections rather than scart? Wish I could do the same with the digibox, but it won't work via aerial sockets.

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Nick's 425 posts GB flag
Nick's: mapN's Freeview map terrainN's terrain plot wavesN's frequency data N's Freeview Detailed Coverage

12:00 PM

Thanks KMJ.

Can we just confirm what the PCB muxes are? I think they are the two main muxes containing the main BBC TV/Radio and ITV / C4 channels + the HD Mux?

I am on a fringe area of the Sudbury map so am expecting significantly better reception on DSO. Plus the new HD Mux.

Am I wrong?

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Lisa's 28 posts GB flag
Lisa's: mapL's Freeview map terrainL's terrain plot wavesL's frequency data L's Freeview Detailed Coverage
Mike Dimmick

12:38 PM

Lisa: PSB, Public Service Broadcasting multiplexes. PSB1/BBC A carries all the BBC's SD channels, interactive services and radio stations. PSB3/BBC B/HD carries BBC One HD, BBC HD, ITV1 HD and Channel 4 HD.

PSB2/D3&4 carries ITV1, Channel 4, Channel 5, and whatever else the ITV companies and Channel 4 decide to carry on their respective halves of the remaining capacity. At present that's ITV2, C4+1, More 4, E4, and ITV1 +1.

Digital UK's predictor shows you have a good chance of reliable reception on all six multiplexes from both Sudbury and from Crystal Palace after their respective switchovers are fully complete. You aren't expected to get reliable service from Sudbury COM5 and COM6 (Arqiva A and B) until the final channel change in June 2012.

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Mike Dimmick's 2,486 posts GB flag

12:42 PM

That's great, thanks for clearing that up. That was sort of what I understood but nice to get up to date confirmation.

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Lisa's 28 posts GB flag
Mike Dimmick

12:53 PM

Nick: Challenge is carried on Mux A/SDN. At switchover step 1, 6 July, this takes over the current main BBC multiplex's channel. It is due a power increase to double the current level, 14kW, but it's not clear whether this happens at step 1 or step 2 - Digital UK's predictor for Lisa's postcode shows the same (poor) prediction for 6 July as it does now, increasing to good at step 2 on 20 July.

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Mike Dimmick's 2,486 posts GB flag
Saturday, 18 June 2011

3:56 PM

Not sure you're right about the TX power levels KMJ,Derby.

I don't see any mention of Arquiva A being restrcited to 3kW and, in fact, my reading of is that, from DSO2 on 20/7/11, 4 out of 5 of Sudbury's SD muxes will operate at 100kW with the other (SDN on UHF 49) being restricted to 14kW.

From 16/11/11, Arquiva B will move to UHF 63 and then operate at only 2.2kW until 27/1/212 (when it changes to UHF 56). (PE113YR)

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Heinz's 25 posts GB flag
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