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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
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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.

MuxH/VFrequencyHeightModeWatts
PSB1
BBCA
 H max
C44 (658.0MHz)229mDTG-3100,000W
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

PSB2
D3+4
 H max
C41 (634.0MHz)229mDTG-3100,000W
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, 30 E4 +1, 35 ITV1 +1 (Anglia east),

PSB3
BBCB
 H max
C47 (682.0MHz)229mDTG-6100,000W
Channel icons
56 5SELECT, 101 BBC One HD (England no regional news), 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

COM4
SDN
 H max
C29 (538.0MHz)186mDTG-3100,000W
Channel icons
12 Quest, 20 Drama, 21 5USA, 29 ITV2 +1, 32 5STAR, 33 5Action, 41 Legend, 42 GREAT! movies action, 46 Channel 5 +1, 58 ITVBe +1, 59 ITV3 +1, 64 Blaze, 67 CBS Reality, 74 Dave ja vu, 78 TCC, 81 Blaze +1, 89 ITV4 +1, 203 CITV, 208 POP MAX, 209 Ketchup TV, 210 Ketchup Too, 211 YAAAS!, plus 15 others

COM5
ArqA
 H max
C31- (553.8MHz)228mDTG-8100,000W
Channel icons
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, 57 Smithsonian Channel, 60 Drama +1, 70 Quest +1, 75 Yesterday +1, 83 Together TV, 233 Sky News, plus 8 others

COM6
ArqB
 H max
C37 (602.0MHz)228mDTG-8100,000W
Channel icons
 FreeSports, 25 W, 27 Yesterday, 34 GREAT! movies, 39 DMAX, 44 HGTV, 71 Quest Red +1, 73 HobbyMaker, 82 Talking Pictures TV, 84 PBS America, 88 Classic Hits, 235 Aljazeera English, plus 19 others

DTG-3 64QAM 8K 2/3 24.1Mb/s DVB-T MPEG2
DTG-6 256QAM 32KE 2/3 40.2Mb/s DVB-T2 MPEG4
DTG-8 64QAM 8K 3/4 27.1Mb/s DVB-T MPEG2
H/V: aerial position (horizontal or vertical)

Are you trying to watch these 0 Freeview HD channels?


The Sudbury (Suffolk, England) mast is not one of the extended Freeview HD (COM7 and COM8) transmitters, it does not provide these high definition (HD) channels: .

If you want to watch these HD channels, either use Freesat HD, or move your TV aerial must point to one of the 30 Full Freeview HD transmitters. For more information see the want to know which transmitters will carry extra Freeview HD? 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
B E TB E TB E TE TK T
C29SDN
C31ArqA
C35C5wavesC5waves
C37ArqB
C41ITVwavesITVwavesITVwavesD3+4D3+4
C44BBC2wavesBBC2wavesBBC2wavesBBCABBCA
C47C4wavesC4wavesC4wavesBBCBBBCB
C51tv_offBBC1wavesBBC1wavesBBC1waves
C56tv_offArqB
C58tv_offSDN
C60tv_off-ArqA

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.

Comments
Saturday, 16 March 2013
J
jb38
sentiment_very_satisfiedPlatinum

6:32 PM

Nick: Basically yes! this based entirely on what you have reported with regards to the signal being strong etc.

But as far as the PSB channels being lost are concerned, if the action of selecting BBC1 results in a blank screen then the "only" way of determining the cause is by following (exactly) the manual tune test procedure as described in my reply on the 12th @ 07.53PM.

link to this comment
jb38's 7,179 posts GB
J
jb38
sentiment_very_satisfiedPlatinum

7:31 PM

Nick: Re: your 05.10PM posting concerning signal strength reductions etc, I would strongly recommend that you keep the test as simple as possible by "only" using an attenuator in line with the aerial socket as was described, because if you attempt to reduce the signal by changing the voltage being fed to the home made booster then you are effectively bringing something else into the equation thus making it difficult to evaluate the results as its effectively dealing with the unknown as far as signal attenuation is concerned.

Another problem that could be introduced by this action being, that there is always the possibility of the signal passing through the amplifier becoming corrupted due to the RF transistor being used for amplification becoming unstable because of insufficient voltage on its collector compared to that of the high level of RF on its base.

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jb38's 7,179 posts GB
N
Nick
sentiment_satisfiedGold

10:47 PM

Thank you, JB, I will do your tests.
Did you have any conclusions re the sound buzz with small tvs/ brightness etc?

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Nick's 377 posts GB
Sunday, 17 March 2013
J
jb38
sentiment_very_satisfiedPlatinum

8:32 AM

Nick: Sorry, meant to add this to my reply.

However, put simply as it can involve a lengthy explanation, but what you refer to is actually something that was quite frequently heard in a large number of older CRT sets of the somewhat less costly types when the contrast was set on the high side, and with the problem basically being caused by poor design of the power supply allowing the effects of the "maximum current drawing" white level pulses of the video signal to be introduced into the audio circuitry by insufficient levels of filtering, this being why you hear the buzz level changing with the content of the picture.

This type of problem was not really noticed quite so much when the TV was being used for analogue reception via an aerial as the sets auto-gain circuitry kept this level under an element of control, but when a video signal is being fed into the set via the scart socket this control is bypassed thereby placing the circuitry at the mercy of the incoming signal level, and because a Freeview boxes video output is not adjustable in the same way as can be done with a Sky box (three choices of contrast) the only way of compensating for this is on the TV is by reducing the contrast level of the picture, unfortunately on some sets this resulting in the picture having a slight wishy-washy appearance.

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jb38's 7,179 posts GB
N
Nick
sentiment_satisfiedGold

7:57 PM

Thanks JB,
seems not to affect bigger sets, and even Sony trinitron portables buzz via scart.

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Nick's 377 posts GB
J
jb38
sentiment_very_satisfiedPlatinum

8:58 PM

Nick: Possibly not, but as I previously mentioned it is something that is not exactly uncommon if the intensity of the buzz varies with the content of the signal but somewhat subsides if the TV's contrast is reduced, because if it doesnt then the problem can be caused by defective earth continuity between both devices (try another scart lead) or possibly a dry joint on the ground connection from the rear of the boxes scart socket to PCB (or even on the PCB) as in that case the buzz heard "is" the video signal and not a representation of it as applies in the case of a poorly designed power supply.




link to this comment
jb38's 7,179 posts GB
N
Nick
sentiment_satisfiedGold

10:48 PM

thanks JB,
This problem seems common to several small tvs, scart leads and boxes I have tried, and avoidable only with boxes which will feed via aerial, including my Digital Vision AD-BEAV....which brings me to yet another problem. That box is useful as it can connect via the aerial. However, the speech is often slurred and slow, as if drunk, or a 45 rpm record playing at 33. It is remedied by switching it off at the mains once or twice. Any ideas please?

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Nick's 377 posts GB
Friday, 22 March 2013
A
Alexa
9:40 PM
Aldeburgh

at 11pm EVERY night my signal is lost until the next day. no amount of re-tuning works.can anyone offer an explanation?

link to this comment
Alexa's 2 posts GB
N
Nick
sentiment_satisfiedGold

11:54 PM

Alexa, whereabouts, roughly, in A? Are you on the Aldeburgh tx, limited channels, or Sudbury?

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Nick's 377 posts GB
Saturday, 23 March 2013
J
jb38
sentiment_very_satisfiedPlatinum

12:01 AM

Alexa: Does the aerial system being used belong to you or are you on some form of communal system? although should it be yours then if you have any form of booster installed then it has possibly been accidentally connected into a mains supply thats used a timed circuit such as communal lighting or cheap off peak electricity.

Have you made any enquiries with your neighbours to determine as to whether or not the problem is solely confined to yourself? or that others are being similarly affected?

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jb38's 7,179 posts GB
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