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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, 250 BBC Red Button, plus 15 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, 109 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! Movies Action, 57 Dave ja vu, 58 ITVBe +1, 59 ITV3 +1, 64 Blaze, 67 CBS Reality, 69 HorrorXtra, 78 TCC, 81 Blaze +1, 89 ITV4 +1, 91 WildEarth, 203 CITV, 208 Pop Player, 209 Ketchup TV, 210 Ketchup Too, 211 YAAAS!, plus 16 others

 H max
C31- (553.8MHz)228mDTG-8100,000W
Channel icons
 Smithsonian Channel, 11 Sky Arts, 17 Really, 19 Dave, 31 E4 Extra, 36 pick, 40 Quest Red, 43 Food Network, 47 Film4 +1, 48 Challenge, 49 4seven, 60 Drama +1, 70 Quest +1, 71 That's 60s, 74 Yesterday +1, 75 That's 70s, 233 Sky News, plus 9 others

 H max
C37 (602.0MHz)228mDTG-8100,000W
Channel icons
 Quest Red +1,  Classic Hits, 12 Quest, 25 W, 27 Yesterday, 34 GREAT! movies, 39 DMAX, 44 HGTV, 52 GREAT! romance, 73 HobbyMaker, 76 That's 80s, 82 Talking Pictures TV, 83 Together TV, 84 PBS America, 90 Together TV +1, 235 Al Jazeera Eng, plus 19 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, 27 April 2012
Dave Lindsay

12:30 AM

Nick: I have just found this Arqiva document on a prospective Suffolk DAB multiplex which does list Aldeburgh:


Thinking about the intended coverage area of the Suffolk multiplex (Suffolk!), *relatively* speaking the area left out (uncovered) if Aldeburgh wasn't used would be greater (relatively) than with the national multiplex.

There are more Digital One transmitters coming on air. I know that Scarborough was added a few years back. Due to the terrain, the only reliable transmitter for TV and radio is its own.

I have to say though Nick, from what I can see, you aren't in a valley of which there are a few in the area and of which I assume those living in will have no option but to rely on Aldeburgh. For that reason, I get the feeling that, whilst it is unfair that there are those who cannot get commercial/independent DAB stations, you may be in an area where you can. And if you add to that the fact that you intend to receive at roof level, then your chances must be even greater!

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Dave Lindsay's 5,724 posts GB flag

7:18 AM

Thanks Dave.
I have experimented with a DAB dipole on a long pole, but only on the shed, aerial about upstairs window height. I can get the radio to log on to some commercial channels, but not strong enough to hear, so hopefully at roof height it might work. I would like to use a directional aerial, but don't know where to point it as the signals are probably either from Manningtree or Mendlesham, but as on same frequency, don't know which. If you have any idea why the commercial channels are on lower power than the BBC, I would be interested to know.
What do you think of a booster 6 inches from dipole for tv?

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Nick's 394 posts GB flag

7:52 AM

Nick: Regarding the booster you are referring to what gain do you see it rated as having? and as regards to their use, the only reason they are recommended to be installed as near to the aerial as possible is because it limits the chances of any electrical based interference being amplified if picked up in the cable before it enters to the booster, as obviously the amplifier would boost the interference as well as the signal.

Of course the other reason is, that if the signal is at a higher level before passing down the coax then the ratio of the signal to any possible interference will be greater thereby limiting its effect.

On the other point regarding what you are intending doing with the booster, its not advisable to have it in a plastic casing as that doesn't offer any screening, as even these relatively low cost high gain (13db+ boosters that you can get nowadays made by Vision and others are all contained within a metal casing, and these little devices are excellent.

Also, I don't want to put a damper on your variable voltage idea, but dependant on circuitry used you would most likely find that the variation in gain would be virtually negligible between these voltages as it would have to come down to about 3 volts or so before much of an effect would be noticed.

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jb38's 7,179 posts GB flag

11:36 PM

Thanks JB. It is already in a metal casing, I am just keeping the rain off. I don't know its gain, but it gives the same benefit as a 28db one I have to analogue Dover. The gain does decrease with each drop in voltage, till it does nothing at 3v.
Would you recommend immediately behind the reflector? I only see them half way down the mast.

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Nick's 394 posts GB flag
Saturday, 28 April 2012

12:11 AM

Nick: Is there any sign of a signal from Oulton on Norwich 11B?

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KMJ,Derby's 1,811 posts GB flag

12:23 AM

Nick: I can assure you that it doesn't matter that much whether its behind the reflector or about 8 feet or so under the mast, as I can guarantee you that it will not in reality make any difference.

Its just a pity that it doesn't have any names on it though as otherwise I would have checked on its spec, and especially why it seemingly responds so quickly to slight voltage reductions as most dont.

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jb38's 7,179 posts GB flag

8:08 AM

No, KMJ, nothing from Oulton. Do you know why the local and commercial stations are on lower power than the main BBC transmitters from the same site? It seems they want to make things as difficult as they can with coverage. At IP12, they don't provide DAB at all.
JB. It responds instantly to the voltage drop. Perhaps the length of phone cable reduces the voltage a bit.
Perhaps with Dover, where the signal is barely detectable, having the booster immediately behind the reflector captures what little there is, whereas with Sudbury it matters less as there is a good signal to start with. I had to have some means of reducing the Dover signal as it is variable. Most times it is snowy, even with the booster, others it is very strong.

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Nick's 394 posts GB flag
Brian O'Keefe
3:08 PM

Thanks for the tips Dave, I went old school and looked up, the aerial has snapped of the mast and is only hanginging on by the cable..It not a particularly old aerial, probably 5 years max, I guess the recent winds have done for it.

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Brian O'Keefe's 4 posts GB flag
Dave Lindsay

3:13 PM

Brian O'Keefe: Oh dear. If you intend to fix it yourself, then I recommend looking at

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Dave Lindsay's 5,724 posts GB flag
8:31 PM

Hello. Before October 2012, I was receiving all Freeview channels. Since then, I lost channels 12, 15,18, and 24.
I have tried retuning, but no success. My aerial is on my roof.
Please tell me when you will be increasing the power in that transmitter at Sudbury? Thank you.

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JAMES JOHNSON's 1 post GB flag
JAMES's: mapJ's Freeview map terrainJ's terrain plot wavesJ's frequency data J's Freeview Detailed Coverage
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