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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 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
Monday, 19 August 2019
C
Chris.SE
sentiment_very_satisfiedPlatinum

5:36 AM

Kathy Evans:

See my post further up this page on Saturday, 29 June 2019 at 10:59 PM

link to this comment
Chris.SE's 2,361 posts GB
Thursday, 22 August 2019
H
Hardy
sentiment_satisfiedSilver

11:51 AM

Carol .You live in a fairly weak signal area . You really need a good outdoor aerial.

link to this comment
Hardy's 137 posts GB
Sunday, 25 August 2019
G
George Taylor
9:20 PM

I own an up to date smart TV set connected to a terrestrial aerial.

I live in the CO13 postal district. Very often the TV signal breaks down citing a weak or no signal..
Why does this happen ?
If its a transmitter problem , when will this be rectified?

link to this comment
George Taylor's 2 posts GB
G
George Taylor
9:23 PM

My aerila is fixed to the chimney stack.

link to this comment
George Taylor's 2 posts GB
Monday, 26 August 2019
MikeP
sentiment_very_satisfiedPlatinum

8:52 AM

George Taylor:

A partial post code does not help. The Digital UK Coverage Checker, which is often our first point of reference, does not accept partial codes.



link to this comment
MikeP's 3,056 posts GB
Thursday, 5 September 2019
B
Bill
10:45 PM

Thanks for getting the polar diagram for Sudbury, shows the big drop in signal for CH37 and CH31 in my direction (CM96HG),
Ties up with the spectrum analyser readings
Pretty hopeless much of the time on those two MUX into the evenings, again matching coverage checker.

Any ideas on why this has happened, and for whose benefit ? It all used to work fine before the 800 and 700 clearances

link to this comment
Bill's 2 posts GB
Friday, 6 September 2019
C
Chris.SE
sentiment_very_satisfiedPlatinum

5:01 AM

Bill:

Put your postcode into Digital UK - Coverage checker you will see that it's the SDN and ArqA multiplexes (on UHF 29 & 31) that are predicted to have some variable reception at your location either now or in 2020. You ought not to be getting issues with ArqB on UHF37.

My inclination would be to check your aerial installation and coax connections & do you have the correct group or high enough gain aerial? Also check you don't have any boxes (VCRs etc) with RF outputs down near those channels.

link to this comment
Chris.SE's 2,361 posts GB
Saturday, 7 September 2019
B
Bill
11:20 AM
Maldon

Yes it is the correct aerial, have tried a couple I can get to both a K (in use now) and a W (replaced an E at the 800 switchover in 2018).
I can also see the power drop from previous spectrum analyser plots of the W that saved off when I aligned using the SA after switching from the E.
C29 is indeed flaky at times too, as the predictor expects.

I am not aware of any C37 blockers, but will check again as that is of course the old RF VCR frequency.

My question was more why has a special radiation pattern been put in now, and how did a change that makes reception worse get permission ?
A coverage map by MUX would be interesting to see.


link to this comment
Bill's 2 posts GB
Sunday, 8 September 2019
C
Chris.SE
sentiment_very_satisfiedPlatinum

3:49 AM

Bill:

I'm not sure that the radiation pattern has been changed recently. In any event that will be taken into account by the coverage checker. Because of the 700Mhz clearance see Digital UK | 700MHz clearance and the number of transmitters using a smaller number of UHF channels, then this will affect reception of some channels from some transmitters in some locations but again this will be taken into account by the coverage checker, maybe you need to enter your house number to get a more accurate prediction.

It's also possible you might have some very local issues affecting reception - a tall building, trees, nearby water tanks or solar panels, other nearby metal objects etc can all affect reception of signals.
Although it could depend on which Wideband aerial you've got, generally the Group K will have better gain at the low end of the UHF channels.

If you enable Pro Mode by the coverage map at the top of the page, you should be able to look at the pattern for each multiplex (click in the list), but again, as already mentioned this should be taken into account by the coverage checker.

If you have any devices with RF outputs, I would set them above UHF56.

link to this comment
Chris.SE's 2,361 posts GB
Monday, 14 October 2019
Transmitter engineering
sentiment_very_satisfiedOwner

8:08 PM

SUDBURY transmitter - Freeview: BBC Digital TV Off Air from 18:56 today to 19:04 today. [BBC]

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Transmitter engineering's 136,303 posts xx
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