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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 25/03/2024 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),

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 Drama, 21 5USA, 29 ITV2 +1, 32 5STAR, 33 5Action, 38 Channel 5 +1, 41 Legend, 42 GREAT! action, 57 Dave ja vu, 58 ITVBe +1, 59 ITV3 +1, 64 Blaze, 67 TRUE CRIME, 68 TRUE CRIME XTRA, 78 TCC, 81 Blaze +1, 83 Together TV, 89 ITV4 +1, 91 WildEarth, 209 Ketchup TV, 210 Ketchup Too, 211 YAAAS!, 267 Al Jazeera English, plus 30 others

COM5
ArqA
 H max
C31- (553.8MHz)228mDTG-8100,000W
Channel icons
11 Sky Mix, 17 Really, 19 Dave, 31 E4 Extra, 36 Sky Arts, 40 Quest Red, 43 Food Network, 47 Film4 +1, 48 Challenge, 49 4seven, 60 Drama +1, 65 That's TV 2, 70 Quest +1, 74 Yesterday +1, 75 That's 90s, 233 Sky News, plus 11 others

COM6
ArqB
 H max
C37 (602.0MHz)228mDTG-8100,000W
Channel icons
12 Quest, 25 W, 27 Yesterday, 34 GREAT! movies, 39 DMAX, 44 HGTV, 52 GREAT! romance, 56 That's TV (UK), 61 GREAT! movies extra, 63 GREAT! romance mix, 71 That’s 60s, 73 HobbyMaker, 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
Friday, 8 July 2011
Tim
sentiment_satisfiedBronze

1:11 PM
Walton On The Naze

Maybe I'm lucky, but I've just done a rescan on my Freeview DVD recorder, connected to a standard Yagi aerial in the loft, and got 66 TV and radio channels, almost as many as off the hi-gain wideband aerial up on the chimney! And I'm using standard coax cable to a CRT portable TV (the cable's only 2 meters long which helps). I don't know what the signal strength is, as the Toshiba doesn't give that info, but it's excellent quality.

link to this comment
Tim's 34 posts GB flag
Tim's: mapT's Freeview map terrainT's terrain plot wavesT's frequency data T's Freeview Detailed Coverage
Transmitter engineering
sentiment_very_satisfiedOwner

1:37 PM

SUDBURY transmitter - Freeview BBC Digital TV (Four, Cbeebies, Parliament, 3... Off Air; DSO related from 01:09 on 06 Jul to 01:41 on 06 Jul - No problems - [BBC]

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Transmitter engineering's 149,799 posts xx flag
Transmitter engineering
sentiment_very_satisfiedOwner

1:37 PM

SUDBURY transmitter - Freeview BBC Digital TV (Four, Cbeebies, Parliament, 3... Off Air; DSO related from 01:09 on 06 Jul to 01:41 on 06 Jul - No problems - [BBC]

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Transmitter engineering's 149,799 posts xx flag
Transmitter engineering
sentiment_very_satisfiedOwner

3:44 PM

SUDBURY transmitter - Freeview - No problems - BBC Digital TV (Four, Cbeebies, Parliament, 3... Off Air; DSO related from 01:09 on 06 Jul to 01:41 on 06 Jul [BBC]

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Transmitter engineering's 149,799 posts xx flag
Transmitter engineering
sentiment_very_satisfiedOwner

3:44 PM

SUDBURY transmitter - Freeview - No problems - BBC Digital TV (Four, Cbeebies, Parliament, 3... Off Air; DSO related from 01:09 on 06 Jul to 01:41 on 06 Jul [BBC]

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Transmitter engineering's 149,799 posts xx flag
D
Dave W
4:17 PM

I've had mixed results from the 6th July change (obviously nothing major, and it'll likely be sorted on the 20th).

I now have limited signal for MuxC (was fine before) and now have no signal for MuxD (was limited before).

Auto tuning my Freeview box gave me about four versions of the BBC channels, and it seemed to get confused and slow down, but manual tuning has solved that.

link to this comment
Dave W's 3 posts GB flag
Saturday, 9 July 2011
J
Jim D
9:07 AM

To Dale, you're right about the 8k FFT. It's some fearsome maths but in practical terms it means that older freeview kit can't receive the new BBCA mux. I had to buy myself a new card for my PC (I watch all my TV on PCs).

Hang on! You said Mux2! Isn't that supposed to be 2k? Also Mux2 is now the one I can't receive.

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Jim D's 1 post GB flag
W
Will
sentiment_satisfiedBronze

2:50 PM

John Stone / Dave E: Although Ch50 hasn't changed at DSO1, there has been a change at the adjacent Ch49. At DSO1, Mux A moved to Ch49 at an increased ERP of 14kW.

Prior to DSO1, Mux 1 was on Ch49 at 7kW. Mux D on Ch50 only has an ERP of 1.1kW so I suppose that the increased power on the adjacent channel could be causing the receivers to have difficulty in picking it up. (Ch49 At) (Ch49 At) (Ch49 At) 

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Will's 39 posts GB flag
Dale
sentiment_satisfiedBronze

3:09 PM
Ipswich

Jim D : yes, just checked again. Mux 2 seems to have changed to 8K FFT 2 weeks early. I'm guessing that, combined with its very low power, that might account for some people's problems? I can still get the channels (ITV ; C4 ; C5 etc) but the quality has taken a dive (down at about 50%, previously 80-90%)
Current status of all the muxes according to my TV / PVR here in Ipswich :

CH39 (MUX B) : 16QAM 2K Quality 80%
CH44 (BBCA) : 64QAM 8K Quality 100%
CH49 (MUX A) : 64QAM 2K Quality 100%
CH50 (MUX D) : 16QAM 2K Quality 70-80%
CH54 (MUX C) : 16QAM 2K Quality 70-80%
CH56 (MUX 2) : 64QAM 8K Quality 50% or less

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Dale's 78 posts GB flag
Dale's: mapD's Freeview map terrainD's terrain plot wavesD's frequency data D's Freeview Detailed Coverage
W
Will
sentiment_satisfiedBronze

3:58 PM

Dale: If, as you say, Mux 2 has already adopted the 8k transmission mode but the actual power remains the same, then this would mean that some people will now struggle to receive this Mux as it's effectively similar to a power reduction.

I guess as annoying as that is, at least there's only about a week and half until it's no longer an issue.

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Will's 39 posts GB flag
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