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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 04/11/2024 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
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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-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

PSB2
D3+4
 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), 71 That’s 60s,

PSB3
BBCB
 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

COM4
SDN
 H max
C29 (538.0MHz)186mDTG-100,000W
Channel icons
20 U&Drama, 21 5USA, 29 ITV2 +1, 32 5STAR, 33 5Action, 38 Channel 5 +1, 41 Legend, 42 GREAT! action, 57 U&Dave ja vu, 58 ITV3 +1, 59 ITV4 +1, 64 Blaze, 67 TRUE CRIME, 68 TRUE CRIME XTRA, 81 Blaze +1, 83 Together TV, 91 WildEarth, 93 ITVBe +1, 209 Ketchup TV, 210 Ketchup Too, 211 YAAAS!, 251 Al Jazeera English, 255 FRANCE 24 (in English), 265 Rok Sky +1, plus 29 others

COM5
ArqA
 H max
C31- (553.8MHz)228mDTG-8100,000W
Channel icons
11 Sky Mix, 17 Really, 19 U&Dave, 31 E4 Extra, 36 Sky Arts, 40 Quest Red, 43 Food Network, 47 Film4 +1, 48 Challenge, 49 4seven, 60 U&Drama +1, 65 That's TV 2, 70 Quest +1, 74 &UYesterday +1, 76 That's TV 2 MCR, 233 Sky News, plus 13 others

COM6
ArqB
 H max
C37 (602.0MHz)228mDTG-8100,000W
Channel icons
12 Quest, 25 U&W, 27 U&Yesterday, 34 GREAT! movies, 39 DMAX, 44 HGTV, 52 GREAT! christmas, 56 That's TV (UK), 63 GREAT! romance mix, 73 HobbyMaker, 75 That's 90s, 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
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
Monday, 23 May 2022
S
StevensOnln1
sentiment_very_satisfiedPlatinum

4:43 PM

Rex Watson: FreeSports is broadcast on the COM7 multiplex which is closing next month, so it really isn't worth changing your aerial to try and receive another transmitter. Nothing has been announced regarding whether FreeSports or any other channel will move to another multiplex or whether they will leave Freeview.

link to this comment
StevensOnln1's 3,669 posts GB flag
R
Richard Owen
sentiment_satisfiedBronze

8:31 PM

When BBC 3 was taken online and removed from Freeview , Channel 5 took their HD slot .
When BBC 3 returned to Freeview it got a HD slot , although Chan 5 , kept their slot,
How was this unknown , by me ,HD Slot suddenly available ? Why didn`t BBC4 get it or another , broadcaster?
Hopefully someone knows , it seems a bit sly to me, to hide it unused.

link to this comment
Richard Owen's 42 posts GB flag
S
StevensOnln1
sentiment_very_satisfiedPlatinum

10:18 PM

Richard Owen: Channel 5 didn't get BBC Three's HD slot, they just took over the channel number and used broadcast capacity that was previously vacant. BBC Three shares the same capacity that is used by CBBC channel up to 7pm in the same way that BBC Four shares with CBeebies. When BBC Three was closed, CBBC's hours were extended to finish at 9pm so there wasn't space for BBC Four HD to begin at 7pm and share capacity with CBBC HD. The spare capacity available after 9pm was offered by the BBC to other broadcasters however none were interested in broadcasting a HD channel that could only start at 9pm each evening. In Scotland, CBBC HD's hours were later cut back to finish at 7pm so that the BBC Scotland HD channel could use the capacity in the evening, similar to how S4C HD is now broadcast from 7pm in Wales, resulting in the the relaunched BBC Three only being available in HD from transmitters in England and Northern Ireland on Freeview (transmitters in Scotland and Wales on have the SD version of BBC Three).

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StevensOnln1's 3,669 posts GB flag
Tuesday, 24 May 2022
R
Rex Watson
8:45 AM

I find it most odd that I can only watch 99 freeview channels, as the 122 channels from Sudbury are all at the same power. Any comment?

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Rex Watson's 7 posts US flag
C
Chris.SE
sentiment_very_satisfiedPlatinum

3:49 PM

Rex Watson:

Apart from the fact you can't watch Radio stations! which channels are you not getting?
See Channel listings for Industry Professionals | Freeview for which channels are carried on which multiplex.

You have checked that you are correctly tuned to the Sudbury UHF channels? and Sudbury is still listed for Planned Engineering. See my reply Sudbury (Suffolk, England) Full Freeview transmitter | free and easy

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Chris.SE's 4,356 posts GB flag
Wednesday, 22 June 2022
N
nick
sentiment_satisfiedGold

10:04 PM

here on the east coast at this time of year we regularly get 'no signal' appear on screen. Why is it that the BBC and ITV multiplexes are the last to succumb to this?

link to this comment
nick's 431 posts GB flag
N
nick
sentiment_satisfiedGold

10:07 PM

here on the east coast at this time of year we often get 'no signal' appear on screen . Why is it that the BBC and ITV multiplexes are the last to succumb to this?

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nick's 431 posts GB flag
Thursday, 23 June 2022
C
Chris.SE
sentiment_very_satisfiedPlatinum

1:24 AM

nick:

Hi Nick, ignore any fatal error message when posting, the posts do get through although there can often be a delay (due to caching, not the error).

Even with your technical knowledge, I'm sure you know you are in a very tricky location and even small changes to aerial location can make a big difference to reception. I assume you've checked out your predicted reception, it's not clever, even the Aldeburgh relay can be poor in some spots.

Whilst the frequency planners can and sometimes do make mistakes, I'm sure that in coastal locations like yours where there is potential for interference from the continent in "lift" conditions (Tropospheric ducting/Temperature Inversion) and likewise interference to them from us, the UHF channels chosen for the primary services (PSBs in our case) will have been to minimise this possibility, hence what you are experiencing. However there's still the possibility of interference not just from the continent, but from other UK transmitters in the "wrong" lift conditions. In your case, considering your aerial direction then Oxford and Wenvoe come to mind as possibilities, but even then under extreme conditions interference could come from anywhere using the same frequencies.

Are you using a "traditional" yagi, or still using a home-brew? If it's a traditional yagi then you're probably aware that it'll have a bit more gain on the higher channels which will help a bit with the BBC (PSB1) and ITV/C4/C5 (PSB2) muxes.

These days a quality Group K or Group B aerial can have similar performance BUT it will depend on the individual aerial as to which will have the best gain towards the bottom end of the band as well as the top end.

Attempting to position an aerial to make use of building screening from the most common source of interference (the continent) can conflict with the height required to get adequate signal from the intended source. Use of stacked arrays can sometimes help reducing sidelobes etc. but this is much more of a specialised technique.

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Chris.SE's 4,356 posts GB flag
Friday, 24 June 2022
R
Rex Watson
3:39 PM

Any news about what will happen to Freesports? It seems odd that Sky will just abandon it.

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Rex Watson's 7 posts GB flag
S
StevensOnln1
sentiment_very_satisfiedPlatinum

4:16 PM

Rex Watson: Freesports have announced that they will be leaving Freeview next week but will continue to broadcast on Sky and cable, as well as via their online player FreeSportsPlayer.tv Live and On Demand and Samsung TV Plus.

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StevensOnln1's 3,669 posts GB flag
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