menuMENU    UK Free TV logo Freeview



Click to see updates

Full Freeview on the Sudbury (Suffolk, England) transmitter

first published this on - UK Free TV
sa_streetviewGoogle Streetviewsa_gmapsGoogle mapsa_bingBing mapsa_gearthGoogle Earthsa_gps52.005,0.786 or 52°0'17"N 0°47'8"Esa_postcodeCO10 5NG


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 22/04/2024 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, 8 August 2011
4:48 PM

Channel 12 Yesterday

I am having reception troubles with ch 12 since last week is there any reason

Regards TonyS

link to this comment
TonyS's 1 post GB flag

9:03 PM

TonyS: Not since last week. Please can you see Single frequency interference | - independent free digital TV advice ?

link to this comment
Briantist's 38,915 posts GB flag
Tuesday, 9 August 2011
Norm De Plume

6:36 PM

@Elaine Fuller

In the Ipswich area, you get similar powers from Tacolneston and Sudbury and the aerials are often pointed depending on geography and the positions of local trees, so what you are saying isn't a big surprise.

Your problems could still be cured by improving your aerial setup.

Firstly, the leads from wall sockets to the TV can make a big difference and are the simplest to fix. If you replace cheap leads with good quality double-shielded cable and decent connectors, that can often make the difference between a borderline digital signal and something that's viewable.

If that doesn't sort out your system, the next thing to bear in mind is that you probably have one aerial and yet you have at least 2 TV connections. If the splitting is carried out with a cheap connection, that will also cause problems. The best type of splitter is called a 'diplexer' and should be labelled that way. Unfortunately, such things are often buried away in the loft/airing cupboard/floorboards, so it may take a bit more time to find out.

link to this comment
Norm De Plume's 36 posts GB flag
Norm's: mapN's Freeview map terrainN's terrain plot wavesN's frequency data N's Freeview Detailed Coverage
Wednesday, 10 August 2011
Elaine Fuller
2:52 PM

hello Norm de Plume

Thanks for your help. Not sure where our "diplexer" is, as we have an external aerial cable that runs from the roof top aerial over the roof and down the back wall to the back of the house and then comes in through the wall into an aerial socket in the dining room, and another cable that runs from the aerial over the roof, down the front wall and into a socket in the front room. I'm too old to climb up on the roof and look to see if the splitter is up there!! Still unsure as to why my new cheapish JVC telly with built in tuner works fine on both aerial sockets, but the Humax box is, quite frankly, a pile of manure. Surely if it was a problem with the aerial lead (either indoor our outdoor), would it not make the digital reception on that a load of old pants too?

link to this comment
Elaine Fuller's 3 posts GB flag

3:56 PM

Elaine Fuller: To be quite frank about it, the Digital UK trade reception predictor doesn't really indicate good reception being possible from anywhere associated with your post code, with the only slight glimmer of hope being on the 23rd of November from Tacolneston, however this being short lived by going downhill again in June 2012.

In areas such as yours where aerials can be seen pointing in various directions, is always (and without exception!) an indication of an area of erratic reception where signals are capable of changing strength within a few yards of each other, needless to say nothing can be done about this, as areas like that are really what Freesat was intended for, or partially anyway.

As regards your JVC TV Vs the Humax box, Humax boxes are amongst the best for reception sensitivity and stability as far as glitches are concerned, and when you say that the Humax was poor compared to the JVC are you sure they were both receiving from the same transmitter? as judging by what you have said I feel that your reception area is possibly even worse than the trade predictor has forecast.

When you are carrying out experiments with reception, "always" check via the devices tuning menu / signal strength / quality indicator that each device is using the same Mux channel for whatever you may be looking at, this just in case they aren't! and something which is not beyond possibility at your location.

link to this comment
jb38's 7,179 posts GB flag
Thursday, 11 August 2011
Norm De Plume

6:31 AM

Hello Elaine,

It sounds like the splitting is done at the aerial.

Do you know if any power needs to be sent to the aerial from a box of tricks somewhere or one of the receivers? If so, you might have an amplifier on the aerial, so the splitting would be electrically of a good quality. Unfortunately, if not, it could well be that the wires are both just joined together at the aerial and that will lead to a lower quality signal. The reason that I suspect the aerial installation is because the Humax is giving problems - Humaxes should give you a good picture but if there's something wrong with the wiring, that would lead to unexplained results.

link to this comment
Norm De Plume's 36 posts GB flag
Elaine Fuller
9:20 AM

hello Norme de Plume and jb38

Just to say huge thanks for all your assistance on this. Being a technological idiot it really is good to be able to talk to folks who know what goes on! I did however, have a minor brain wave last night and went and bought a decent scart cable (Monster, £34 from Comet), and replaced the cheap and nasty one that had been supplied by Humax. Lo, it seems to have worked! (I'm saying this with all extremeties crossed!!) The Humax was only set up with its new Monster cable last night, and it seemed preettty good all evening, only interference was a slight stutteriness on picture, but no loss of sound, when the local gang of young mopedists roared past at 5 miles an hour. Am hoping that this is the miracle cure. Once again huge thanks for assisting a ranting, technophobic old bird! :+)

link to this comment
Elaine Fuller's 3 posts GB flag
Friday, 12 August 2011

7:37 PM

Elaine : have been following this for a few days. There is no way the problems you reported, which all sounded related to reception, could have been fixed by a new SCART lead between box and TV. But, hey!, if it's working now that great!
(£34 for a SCART though : I'd expect the PVR for that ...).

link to this comment
Dale's 78 posts GB flag
Saturday, 13 August 2011
Gary Dadds
6:40 PM

H, I live in CB9 which although is listed in the Sandy reception area the east side of the town in general looks to Sudbury. Last Christmas in anticipation of the comming digital switch over I purchased a Samsung BD-C8200 Blueray/HDD/Freveiw HD box. After the switch and necessary retunes I'm not aware of anything missing, possibly gained a couple of extra channels, but no HD. My question is. Should I be seeing some HD now?

link to this comment
Gary Dadds's 4 posts GB flag
Gary's: mapG's Freeview map terrainG's terrain plot wavesG's frequency data G's Freeview Detailed Coverage

9:07 PM

Gary Dadds: The trade reception predictor indicates that you should be receiving a perfect signal from Sudbury on Mux Ch47, so I would try a manual scan on this channel.

If still nothing, then try the same test but on Mux Ch21, that being Sandy Heaths HD service, as although it doesnt indicate such good reception at least its still in the predictors green zone. (good!)

link to this comment
jb38's 22 posts GB flag
Select more comments

Your comment please
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.

If you have no satellite signal, see Sky Digibox says 'No Signal' or 'Technical fault'

If you have other problems, please provide a full (not partial) postcode (or preferably enter it in box at the top right) and indicate where if aerial is on the roof, in the loft or elsewhere.

UK Free TV is here to help people. If you are rude or disrespectful all of your posts will be deleted and you will be banned.

Privacy policy: UK Free Privacy policy.