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 09/09/2024 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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Tuesday, 28 June 2011
SUDBURY transmitter - Freeview BBC Digital TV (Four, Cbeebies, Parliament, 3... Off Air from 15:09 today to 15:18 today BBC Digital TV (One, Two, Three, CBBC, News) Weak Signal from 16:29 today to 18:30 today BBC Digital TV (One, Two, Three, CBBC, News) Off Air from 15:09 today to 16:2 Analogue BBC TWO Weak Signal from 19:29 yesterday to 22:47 yesterday [BBC] Over the next week Sudbury main transmitter: TV (analogue) working normally, TV (digital) Liable to interruption, Radio (analogue) working normally, Radio (digital) working normally. [DUK]
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Wednesday, 29 June 2011
SUDBURY transmitter - Freeview BBC Digital TV (Four, Cbeebies, Parliament, 3... Off Air from 15:09 yesterday to 15:18 yesterday BBC Digital TV (One, Two, Three, CBBC, News) Off Air from 15:09 yesterday to 16:29 yesterday BBC Digital TV (One, Two, Three, CBBC, News) Weak Signal from 16: Analogue BBC TWO Weak Signal from 19:29 on 27 Jun to 22:47 on 27 Jun [BBC] Over the next week Sudbury main transmitter: TV (analogue) working normally, TV (digital) Liable to interruption, Radio (analogue) working normally, Radio (digital) working normally. [DUK]
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SUDBURY transmitter - Freeview BBC Digital TV (Four, Cbeebies, Parliament, 3... Off Air from 15:09 yesterday to 15:18 yesterday BBC Digital TV (One, Two, Three, CBBC, News) Off Air from 15:09 yesterday to 16:29 yesterday BBC Digital TV (One, Two, Three, CBBC, News) Weak Signal from 16: Analogue BBC TWO Weak Signal from 19:29 on 27 Jun to 22:47 on 27 Jun [BBC] Over the next week Sudbury main transmitter: TV (analogue) working normally, TV (digital) Liable to interruption, Radio (analogue) working normally, Radio (digital) working normally. [DUK]
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SUDBURY transmitter - Freeview BBC Digital TV (Four, Cbeebies, Parliament, 3... Off Air from 15:09 yesterday to 15:18 yesterday BBC Digital TV (One, Two, Three, CBBC, News) Weak Signal from 16:29 yesterday to 18:30 yesterday BBC Digital TV (One, Two, Three, CBBC, News) Off Air from 15: Analogue BBC TWO Weak Signal from 19:29 on 27 Jun to 22:47 on 27 Jun [BBC] Over the next week Sudbury main transmitter: TV (analogue) working normally, TV (digital) Liable to interruption, Radio (analogue) working normally, Radio (digital) working normally. [DUK]
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SUDBURY transmitter - Freeview BBC Digital TV (Four, Cbeebies, Parliament, 3... Off Air from 15:09 yesterday to 15:18 yesterday BBC Digital TV (One, Two, Three, CBBC, News) Weak Signal from 16:29 yesterday to 18:30 yesterday BBC Digital TV (One, Two, Three, CBBC, News) Off Air from 15: Analogue BBC TWO Weak Signal from 19:29 on 27 Jun to 22:47 on 27 Jun [BBC] Over the next week Sudbury main transmitter: TV (analogue) working normally, TV (digital) Liable to interruption, Radio (analogue) working normally, Radio (digital) working normally. [DUK]
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M
Mike Dimmick5:52 PM
Maldon
Tosh: The predictor is based on 10 dBd of aerial gain (middling - XB16E has 11-15 dBd) and 3 dB of loss in cables (high - WF100 is rated at 15-18.3 dB per 100m, which if linear would take about a 15-20m run to drop 3 dB). It's also based on a maximum of 16 dB of rejection of signal from behind and to the side, an acceptance angle of about 40° (20° either side of the middle), and 16 dB of cross-polar rejection - rejection from the other polarization, so - if using Sudbury - rejecting vertically-polarized signals from the relays. Again, real aerials will beat this, though the exact amount depends on the frequency and angle. Larger aerials will generally reject more unwanted signal and have a narrower acceptance angle.
Therefore, the predictions can be quite conservative. Still, a prediction of 'poor' or 'nothing' is likely to indicate a problem.
Masthead amplification might be useful if the issue is simply that the signal will be too weak, but it's more likely that the problem will be co-channel interference.
The Rouncefall mast will use the same channels as Sudbury for the PSB services, timed so that for most people, the signals will arrive within the 'guard interval'. This idea - called a Single Frequency Network - reinforces the signals, but only if the timing is right. If it isn't, it stops the receiver decoding it completely. This may be why, for CM9 4TT, Digital UK predict poor reception for the PSBs but good or variable for the COMs. Again, it will depend on exactly how your aerial behaves - in this case it's the polar response of the aerial (angle to transmitters) that is important.
For that postcode, the trade predictor reckons Rouncefall should start out good but deteriorate next year, presumably as Tyne Tees switches over or possibly continental transmitters, while it's expected to get more reliable results from Dover!
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Mike's: mapM's Freeview map terrainM's terrain plot wavesM's frequency data M's Freeview Detailed Coverage
Thursday, 30 June 2011
SUDBURY transmitter - Freeview BBC Digital TV (Four, Cbeebies, Parliament, 3... Off Air from 15:09 on 28 Jun to 15:18 on 28 Jun BBC Digital TV (One, Two, Three, CBBC, News) Weak Signal from 16:29 on 28 Jun to 18:30 on 28 Jun BBC Digital TV (One, Two, Three, CBBC, News) Off Air from 15: Analogue BBC TWO Weak Signal from 19:29 on 27 Jun to 22:47 on 27 Jun [BBC] Over the next week Sudbury main transmitter: TV (analogue) working normally, TV (digital) Liable to interruption, Radio (analogue) working normally, Radio (digital) working normally. [DUK]
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SUDBURY transmitter - Freeview BBC Digital TV (Four, Cbeebies, Parliament, 3... Off Air from 15:09 on 28 Jun to 15:18 on 28 Jun BBC Digital TV (One, Two, Three, CBBC, News) Weak Signal from 16:29 on 28 Jun to 18:30 on 28 Jun BBC Digital TV (One, Two, Three, CBBC, News) Off Air from 15: Analogue BBC TWO Weak Signal from 19:29 on 27 Jun to 22:47 on 27 Jun [BBC] Over the next week Sudbury main transmitter: TV (analogue) working normally, TV (digital) Liable to interruption, Radio (analogue) working normally, Radio (digital) working normally. [DUK]
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SUDBURY transmitter - Freeview BBC Digital TV (Four, Cbeebies, Parliament, 3... Off Air from 15:09 on 28 Jun to 15:18 on 28 Jun BBC Digital TV (One, Two, Three, CBBC, News) Off Air; DSO related from 03:57 today to 04:01 today BBC Digital TV (One, Two, Three, CBBC, News) Off Air; DSO re Analogue BBC TWO Weak Signal from 19:29 on 27 Jun to 22:47 on 27 Jun [BBC] Over the next week Sudbury main transmitter: TV (analogue) working normally, TV (digital) Liable to interruption, Radio (analogue) working normally, Radio (digital) working normally. [DUK]
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SUDBURY transmitter - Freeview BBC Digital TV (Four, Cbeebies, Parliament, 3... Off Air from 15:09 on 28 Jun to 15:18 on 28 Jun BBC Digital TV (One, Two, Three, CBBC, News) Off Air; DSO related from 03:57 today to 04:01 today BBC Digital TV (One, Two, Three, CBBC, News) Off Air; DSO re Analogue BBC TWO Weak Signal from 19:29 on 27 Jun to 22:47 on 27 Jun [BBC] Over the next week Sudbury main transmitter: TV (analogue) working normally, TV (digital) Liable to interruption, Radio (analogue) working normally, Radio (digital) working normally. [DUK]
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