Full Freeview on the Sudbury (Suffolk, England) transmitter
 | Google Streetview |  | Google map |  | Bing map |  | Google Earth |  | 52.005,0.786 or 52°0'17"N 0°47'8"E |  | CO10 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 18/11/2024 Pixelation or flickering on some or all channels 
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Digital television services are broadcast on a multiplexes (or Mux) where many stations occupy a single broadcast frequency, as shown below.
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 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.
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?
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
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 West | Transposer | 1000 homes +1000 or more homes due to expansion of affected area? | |
| Witham | Transposer | 14 km NE Chelmsford. | 118 homes |
How will the Sudbury (Suffolk, England) transmission frequencies change over time?
| 1984-97 | 1997-98 | 1998-2011 | 2011-13 | 1 Aug 2018 | |||||
| B E T | B E T | B E T | E T | K T | |||||
| C29 | SDN | ||||||||
| C31 | ArqA | ||||||||
| C35 | C5waves | C5waves | |||||||
| C37 | ArqB | ||||||||
| C41 | ITVwaves | ITVwaves | ITVwaves | D3+4 | D3+4 | ||||
| C44 | BBC2waves | BBC2waves | BBC2waves | BBCA | BBCA | ||||
| C47 | C4waves | C4waves | C4waves | BBCB | BBCB | ||||
| C51tv_off | BBC1waves | BBC1waves | BBC1waves | ||||||
| C56tv_off | ArqB | ||||||||
| C58tv_off | SDN | ||||||||
| 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
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Thursday, 7 July 2011
Seem to have very poor signal quality on BBC1 & 2 since switchover. Have done several factory resets and rescans but still the same. This is on one TV with integated tuner and two freeview boxes. CO3 4SS postcode
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Chris's: mapC's Freeview map terrainC's terrain plot wavesC's frequency data C's Freeview Detailed Coverage
Tim
9:40 PM
Walton On The Naze
9:40 PM
Walton On The Naze
Liam: It's my understanding that the COM channels (SDN, ARQ A, ARQ B, and NEW 7 & 8) will go full power from Sudbury on 27th June 2012, but the present muxes should show a small increase in power on 20th July 2011.
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Tim's: mapT's Freeview map terrainT's terrain plot wavesT's frequency data T's Freeview Detailed Coverage
Friday, 8 July 2011
J
John Stone9:41 AM
Hockley
Hi, I live in south Essex and the signal on ch50 from Sudbury has dissapeared and ch68 is lower than it was before 6/7. I can receive a low signal on ch56. Ch54, ch49 and of cause ch44 are fine.
John
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John's: mapJ's Freeview map terrainJ's terrain plot wavesJ's frequency data J's Freeview Detailed Coverage
D
Dave E10:08 AM
Colchester
John Stone:
For a channel 50 replacement, try ch 55 from Dover. I get that here at usable strength 5mi south of Colchester, although the odd thing is that nothing about ch50 has changed yet. Perhaps there is an inversion in progress.
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Dave's: mapD's Freeview map terrainD's terrain plot wavesD's frequency data D's Freeview Detailed Coverage
Tim
1:11 PM
Walton On The Naze
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.
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Tim's: mapT's Freeview map terrainT's terrain plot wavesT's frequency data T's Freeview Detailed Coverage
D
Dave W4:17 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.
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Saturday, 9 July 2011
J
Jim D9:07 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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W
Will2:50 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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Dale
3:09 PM
Ipswich
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: mapD's Freeview map terrainD's terrain plot wavesD's frequency data D's Freeview Detailed Coverage
W
Will3:58 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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