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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 26/09/2022 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, 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 (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 ITV +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 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
Thursday, 8 February 2018
E
Edward Keith
6:51 PM

TruTV (Ch 68) seems to have disappeared from the Sudbury transmitter as per comments yesterday and 3 retunes on my T V. Will it return do you think? I do not believe this is an equipment issue at my end, we live near Sudbury (IP77PE), with a new aerial (2016) and new tv.

link to this comment
Edward Keith's 1 post GB
N
nick horrex
sentiment_satisfiedGold

7:13 PM

MikeP
thank you. However, I am technically in the area of the freeview light transmitter at Aldeburgh, so for Sudbury I need the majority of elements on the aerial in use, which with log periodic they are not.

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nick horrex's 373 posts GB
N
nick horrex
sentiment_satisfiedGold

7:17 PM

Please would someone confirm that the info on this site re channel changes is incorrect, ie that the main BBC and ITV muxes will remain on the existing channels after they have finished messing about so that those of us who struggle to see some muxes will continue to see them?

link to this comment
nick horrex's 373 posts GB
N
nick horrex
sentiment_satisfiedGold

7:19 PM

Is the ultimate aim of removing so many available channels from freeview to shut it down and force us to buy freesat receivers?

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nick horrex's 373 posts GB
M
MikeB
sentiment_very_satisfiedPlatinum

10:54 PM

nick horrex: Which channels have been removed from Freeview? If your not getting channels then either your on a Light transmitter or your losing muxes, which is down to problems with your own system.

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MikeB's 2,579 posts GB
Friday, 9 February 2018
MikeP
sentiment_very_satisfiedPlatinum

12:41 AM

Nick Horrex:

A log-periodic aerial uses ALL the elements for reception of ALL the available channels across the UHF bands. It is not the case only some are used for some frequencies - the way a log-periodic works requires all the elements to be correctly in place. The number of elements affects how much inherent gain the aerial has, the more elements the higher the intrinsic gain.



link to this comment
MikeP's 3,056 posts GB
N
nick horrex
sentiment_satisfiedGold

7:36 AM

Mike P, thanks.

so far as I understand it, the element suitable for the particular frequency is the one which receives the signal, the others being reflectors and directors. Since a second, third etc reflector behind the receiving element is of no benefit, if, for example, we were trying to receive a mux on the high frequencies, there would be many reflectors and few directors. Am I wrong?

link to this comment
nick horrex's 373 posts GB
MikeP
sentiment_very_satisfiedPlatinum

11:08 PM

Nick Horrex:

Yes. The way the elements react to the wanted signals is crucial and they are designed to all react to give the required gain at the frequencies covered. They *all* add something to the strength of the wanted signal to varying degrees. Those behind the most active element are essential reflectors and there can be several at the higher frequencies but they are all required, so none are 'redundant'. Those in front of the active element act as directors and are again essential for satisfactory reception. That is unlike a Yagi design where a dipole is the only active element and is a compromise, especially on a 'wide band' Yagi or modified Yagi design. Because they are a compromise, the strength of the received signals varies quite a lot across the band claimed to be covered, which is why they are not liked by TV engineers.

A good high gain log-periodic is alweays better than a Yagi for wide band reception - which is what we will all have as Arqiva adjust the transmitters to allow for the 4G signals in the 700MHz band.



link to this comment
MikeP's 3,056 posts GB
Saturday, 10 February 2018
N
nick horrex
sentiment_satisfiedGold

12:10 AM

Mike P
thanks. Not sure I understand how more than one reflector in a line is beneficial but will take your word for it.
I realise that the diplole on a yagi is a compromise and very difficult to get a good signal across many different frequencies now the xmitters are no longer grouped, but the fact remains that a yagi on its best frequencies is far superior in gain to a log.
My aerial is actually home made, based on the old J Beam square dipole and reflector 'slot' principle. It is triple boom and I made it to work on the old groups b and c/d as that was the setup on Sudbury. Now I am b******d as they are moving channels into the old group A. I made it because the wideband yagi was no good, for the reasons you give.

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nick horrex's 373 posts GB
T
TK
2:44 AM

Will Sudbury ever get any more of the HD multiplexes?

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TK's 1 post GB
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