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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 20/09/2021 Possible 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
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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, 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 (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, 25 ITV4, 29 E4 +1, 34 ITV +1 (Anglia east),

PSB3
BBCB
 H max
C47 (682.0MHz)229mDTG-6100,000W
Channel icons
72 Shopping Quarter , 101 BBC One HD (England no regional news), 102 BBC Two HD (England), 103 ITV HD (ITV Meridian Southampton), 104 Channel 4 HD South ads, 105 Channel 5 HD, 204 CBBC HD, plus 1 others

COM4
SDN
 H max
C29 (538.0MHz)186mDTG-3100,000W
Channel icons
 CCXTV, 12 Quest, 20 Drama, 21 5USA, 28 ITV2 +1, 31 5STAR, 32 Paramount Network, 41 GREAT! movies action, 45 Channel 5 +1, 55 5SELECT, 57 ITVBe +1, 58 ITV3 +1, 59 ITV4 +1, 63 Blaze, 66 CBS Reality, 68 Horror Channel, 73 Drama +1, 77 TCC, 80 Blaze +1, 203 CITV, 211 Ketchup TV, 212 YAAAS!, plus 15 others

COM5
ArqA
 H max
C31- (553.8MHz)228mDTG-8100,000W
Channel icons
11 Sky Arts, 17 Really, 19 Dave, 30 4Music, 35 pick, 39 Quest Red, 42 Food Network, 46 Film4 +1, 47 Challenge, 48 4seven, 56 Smithsonian Channel, 69 Quest +1, 74 Yesterday +1, 82 Together TV, 233 Sky News, plus 9 others

COM6
ArqB
 H max
C37 (602.0MHz)228mDTG-8100,000W
Channel icons
23 Dave ja vu, 26 Yesterday, 33 GREAT! movies, 38 DMAX, 40 CBS Justice, 43 HGTV, 67 CBS Drama, 81 Talking Pictures TV, 84 PBS America, 234 RT, 235 Aljazeera English, plus 18 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 11 Freeview HD channels?

the effected 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: BBC Four HD, BBC News HD, CBeebies HD, Quest HD, Forces TV, FreeSports, More4 +1, Now 70s, PBS America +1, Quest Red +1, RT HD.

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 - 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
Friday, 19 October 2018
H
Hardy
sentiment_satisfiedSilver

2:05 PM

Ipswich can get interference from continental tv stations but if the problem is recent I suspect a problem with your aerial or its connections or plugs. (possibly a source of interference such as a new phone mast may be the culprit. But your aerial system being faulty is more likely .)
Your area is a bit complicated for best reception. See the digital coverage checker as Mike suggests. You could get rock solid basic BBC and ITV channels with a small possibly loft aerial (vertical polarisation) from the Ipswich relay transmitter . the other channels probably need a good outdoor aerial for Sudbury . Idealy one with low pick up to the east (rejects continental signals ) A few channels (that you might want ) are better from dover . But having two or three aerials is probably for experimenters and enthusiasts !

link to this comment
Hardy's 137 posts US
Monday, 22 October 2018
C
Chris.SE
sentiment_very_satisfiedPlatinum

11:32 PM

nick horrex:

There are currently no changes for Sudbury next year. It's changes at other transmitters (which is why you'd need to look through DigitalUK) that will affect reception of signals from Sudbury at certain locations in Sudbury's reception area.

link to this comment
Chris.SE's 2,361 posts GB
Wednesday, 24 October 2018
R
Rob
6:56 PM

Thanks for all your responses. I have now had the TV back from the repairers. I don't know if they actually did anything, but it worked fine for a few days and now (18.30 on Wed 24th Oct) it has suddenly started (intermittently) doing the same. I have a high gain external arial and a 4 way booster/splitter in my loft. The other TVs in my house are working fine and I have tried switching them around. It seems that perhaps this particular TV has a weak RF/tuner stage?

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Rob's 2 posts US
Thursday, 25 October 2018
MikeP
sentiment_very_satisfiedPlatinum

11:06 AM

Rob:

Please can you check what the signal strength is as repoirted by that TV set. You can usually find that on the manual tuning option - but do not retune.

Some sets have rather sensitive tuners that do not respond well to too strong a signal, so the usual advice is to aim for no more than 85% strengths on all the multiplexes. Other makes may have a less sensitive tuner so are less affected by too much signal.



link to this comment
MikeP's 3,056 posts GB
Sunday, 25 November 2018
H
hardy
sentiment_satisfiedSilver

8:05 PM

Rob . because you can receive several transmitters it might be that particular tv could have trouble selecting the right frequency for a given channel. Maybe not so likely with a modern tv . But to check I would use the tuning menu to verify that the set is tuned to the correct UHF channels (not freeview channels).

link to this comment
hardy's 137 posts GB
H
hardy
sentiment_satisfiedSilver

8:14 PM

I agree with Mike that too much signal for a sensitive set is a possibility . Perhaps one way to temporarily test on a lower signal is to connect the aerial without the amplifier.

link to this comment
hardy's 137 posts GB
Friday, 30 November 2018
C
Colin Berwick
10:43 AM

We currently have no freeview signal from the Sudbury transmitter. It went off at about 8.15 this morning. Freesat signal not affected.

link to this comment
Colin Berwick's 1 post GB
S
StevensOnln1
sentiment_very_satisfiedPlatinum

12:45 PM

Colin Berwick: There are no faults showing for Sudbury. Have you checked for any loose or damaged cables or connections behind your TV? Do not attempt to retune.

link to this comment
StevensOnln1's 3,116 posts GB
Tuesday, 18 December 2018
D
David
6:10 PM

In CM7 - we seem to have lost all reception on C47 (682.0MHz), so we no longer have access to any of the HD channels that we could before. We have great reception on all others though, so is this a transmitter thing or an issue to look into at the receiver end?

link to this comment
David's 7 posts GB
MikeP
sentiment_very_satisfiedPlatinum

8:24 PM

David:

We need a full post code , not a partial, so that we can look up the expected reception conditions at your location. (A partial such as you have given covers several dozens of square miles and is insufficient to trigger the information needed.)

It is extremely unlikely to be the transmitter, no one else has reported any problems, so I suggest you carefully check all the aerial cables and connections. Unplug all coaxial plugs and sockets and then refit, that will clear any corrosion/oxidation from the contacts which is a common cause of the problems you report.

Then check what the signal strength is reported to be on all the multiplexes broadcast from your local transmitter. You ideally need it to be between 60% and 85% on all multiplexes to have sufficient to allow the TV to decode and not so much as to overload the tuner.



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MikeP's 3,056 posts GB
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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.

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