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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Friday, 17 June 2011
K
KMJ,Derby9:33 AM
Nick: From DSO stage 2 you will unfortunately only have 14kW on MuxA, 3kW on Mux ArqA (changes mode to 8k), and 2.2kW on Mux ArqB (changes mode to 8k). Mux ArqB changes frequency on 16th November 2011 but remains at 2.2kW. This situation continues until 27th June 2012 when all three COM muxes change to high power working on their intended post DSO frequencies. SDN changes to 8k mode on that date.
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K
KMJ,Derby9:44 AM
lisa: There is a significant power increase to 100kW on the PSB muxes only at DSO. The COM muxes switch to high power working on 27th June 2012. Due to the mode change on Mux Arqa and Mux ArqB some viewers might experience a deterioration in reception on these two muxes despite a small power increase on 20th July 2011.
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N
Nick10:07 AM
Woodbridge
Thanks KMJ, so we will have full power on the 'sensible' channels, ie all the ITV's, BBC's, 4 and 5 from July? What power for 'Challenge?'
Thanks
Do you know why I get a slightly smaller but much clearer/sharper picture on my widescreen crt from Sky using aerial connections rather than scart? Wish I could do the same with the digibox, but it won't work via aerial sockets.
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Nick's: mapN's Freeview map terrainN's terrain plot wavesN's frequency data N's Freeview Detailed Coverage
Thanks KMJ.
Can we just confirm what the PCB muxes are? I think they are the two main muxes containing the main BBC TV/Radio and ITV / C4 channels + the HD Mux?
I am on a fringe area of the Sudbury map so am expecting significantly better reception on DSO. Plus the new HD Mux.
Am I wrong?
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Lisa's: mapL's Freeview map terrainL's terrain plot wavesL's frequency data L's Freeview Detailed Coverage
M
Mike Dimmick12:38 PM
Lisa: PSB, Public Service Broadcasting multiplexes. PSB1/BBC A carries all the BBC's SD channels, interactive services and radio stations. PSB3/BBC B/HD carries BBC One HD, BBC HD, ITV1 HD and Channel 4 HD.
PSB2/D3&4 carries ITV1, Channel 4, Channel 5, and whatever else the ITV companies and Channel 4 decide to carry on their respective halves of the remaining capacity. At present that's ITV2, C4+1, More 4, E4, and ITV1 +1.
Digital UK's predictor shows you have a good chance of reliable reception on all six multiplexes from both Sudbury and from Crystal Palace after their respective switchovers are fully complete. You aren't expected to get reliable service from Sudbury COM5 and COM6 (Arqiva A and B) until the final channel change in June 2012.
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That's great, thanks for clearing that up. That was sort of what I understood but nice to get up to date confirmation.
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M
Mike Dimmick12:53 PM
Nick: Challenge is carried on Mux A/SDN. At switchover step 1, 6 July, this takes over the current main BBC multiplex's channel. It is due a power increase to double the current level, 14kW, but it's not clear whether this happens at step 1 or step 2 - Digital UK's predictor for Lisa's postcode shows the same (poor) prediction for 6 July as it does now, increasing to good at step 2 on 20 July.
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Saturday, 18 June 2011
Heinz
3:56 PM
3:56 PM
Not sure you're right about the TX power levels KMJ,Derby.
I don't see any mention of Arquiva A being restrcited to 3kW and, in fact, my reading of http://stakeholders.ofcom.org.uk/binaries/broadcast/guidance/tech-guidance/Anglia.pdf is that, from DSO2 on 20/7/11, 4 out of 5 of Sudbury's SD muxes will operate at 100kW with the other (SDN on UHF 49) being restricted to 14kW.
From 16/11/11, Arquiva B will move to UHF 63 and then operate at only 2.2kW until 27/1/212 (when it changes to UHF 56). (PE113YR)
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Heinz
5:09 PM
Spalding
5:09 PM
Spalding
Sorry, that last paragraph shoul've read:
From 16/11/11, Arquiva B will move to UHF 63 and then operate at only 2.2kW until 27/6/2012 (when it changes to UHF 56).
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Heinz's: mapH's Freeview map terrainH's terrain plot wavesH's frequency data H's Freeview Detailed Coverage
Dale
8:27 PM
Ipswich
8:27 PM
Ipswich
Heinz : the information at the top of this page DOES mention the lower power of ArqA, ArqB and SDN. I quote :
NOTE: ArqA starts up at DSO 2 (20 July) at 3kW, replacing Mux C on C54 at 1.5kW, 'until further notice'. ArqB starts up at DSO 2 at 2.2kW replacing Mux D on C50 at 1.1kW, moves to C63 (at 2.2kW) on 16 November. NOTE: SDN will temporarily operate on channel 49 (at 14kW ERP) from the first stage of Sudbury's switchover until mid-2012. Arqiva A will remain on its preswitchover channel (54) from switchover until mid-2012. Arqiva B will remain on its pre-switchover channel (50+) until late 2011, and then temporarily move to channel 63 (at 2.2kW ERP), before adopting its final allocation of channel 56 during mid-2012
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Dale's: mapD's Freeview map terrainD's terrain plot wavesD's frequency data D's Freeview Detailed Coverage
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