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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Wednesday, 11 July 2012
P
PETER HUGHES8:21 AM
Clacton-on-sea
Like Nick in Aldeburgh I also cannot get Channel 60 signal at all and this is in Clacton. All other channels stable and good quality.
Perhaps channel 60 is not, yet, transmitting at full intended power?
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PETER's: mapP's Freeview map terrainP's terrain plot wavesP's frequency data P's Freeview Detailed Coverage
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Nick10:19 AM
Bures
I am posting this at 1000 on July 11. I live at Alphamstone, about two miles west of the Sudbury transmitter. For the last three weeks or so I have noticed a major fluctuation in signal quality from the Sudbury transmitter. It is intermittent, mostly at this time in the morning about twice a week, dropping from 100% to 40% and back again. The signal strength does not change (80%). I have a very powerful aerial and am processing through a Humax PVR 9300 T. I did a retune about a week ago and all was fine.
This problem, which has only started recently, creates dropouts in picture/sound. I should point out that the weather is clear right now, just in case that is an issue.
Any help from this forum would be gratefully acknowledged.
Kind regards
Nick
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Nick's: mapN's Freeview map terrainN's terrain plot wavesN's frequency data N's Freeview Detailed Coverage
Sudbury coming in good on my aerial now its not even pointing at Sudbury its on CP yet channels 56 , 58 , and 60 are now all above 70% on my Odys TV7 Novel 7 this is in Clacton.
CP is around 75% and Bluebell Hill 60% + Dover is around 50% all on the same one.
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David's: mapD's Freeview map terrainD's terrain plot wavesD's frequency data D's Freeview Detailed Coverage
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Nick A11:08 AM
Bures
Further to the above post, I see there is another Nick so I will change my posts to Nick A.
Just to say the time is now 1100 and the signal quality is back to a steady 100%. Any ideas ?
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Nick's: mapN's Freeview map terrainN's terrain plot wavesN's frequency data N's Freeview Detailed Coverage
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Nick A11:10 AM
Bures
Hi David
Did you have any issues between 0900 and 1100 this morning ?
Nick A
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Nick's: mapN's Freeview map terrainN's terrain plot wavesN's frequency data N's Freeview Detailed Coverage
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Nick A11:14 AM
Bures
And the problem is back (1115) on More 4, BBC channels etc
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Nick's: mapN's Freeview map terrainN's terrain plot wavesN's frequency data N's Freeview Detailed Coverage
Nick A: The signal strength jumping up and down as you describe sounds like it could be signal overload, particularly bearing in mind your close proximity to the transmitter.
See this page for an explanation and remedy:
Freeview signals: too much of a good thing is bad for you | ukfree.tv - 10 years of independent, free digital TV advice
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N
Nick A2:43 PM
Bures
Hi Dave
Thanks for that. I looked at the website which addresses signal 'strength'. But my issue is with 'quality' not 'strength'.
The signal 'strength' stays consistently at 80%, even when the 'quality' fluctuates down to 20% .
So, I am still stymied. Thoughts ?
Regards
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Nick's: mapN's Freeview map terrainN's terrain plot wavesN's frequency data N's Freeview Detailed Coverage
Les Nicol
2:57 PM
2:57 PM
Nick A: I realise you are seeking further response from Dave, but if you are still "stymied" and aren't a fanatical fan with regard to the "Dave" channel on "Freeview" there is a comparable channel line up on the "Freesat" platform. Perhaps a "no goer" for you if you have invested in "Freeview" equipment beyond a TV set with an onboard "Freeview" tuner.
Just a thought?
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Nick A: There are two factors with digital signals:
- strength: this is the level of the signal (level of voltage if you like)
- quality: digital pictures are resolved to digits (numberical values)
A poor quality signal means that the digits are not being received correctly and hence the picture breaks up or cannot be resolved at all.
Receivers have upper thresholds of signal strength that they can operate at.
A hifi system has a similar maximum level above which the signal starts to distort and therefore the quality reduces.
I imagine that when the strength of a digital signal gets to a level that is excessive (or bordering on excessive), then the effect is analogous to distortion of a hifi system's sound output.
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