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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Monday, 3 September 2018
H
Hardy4:03 PM
A 27 MHz X would have arms each about 9 feet long ! with a similar response to an H . A quad driven element with quad reflector would have more gain and sharper beam and take up less space.
Nick . an excellent DIY wifi aerial is here Making your own Bi-Quad (Wi-Fi) antenna
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Tuesday, 4 September 2018
hi, nmugford.
Do you mean make the existing dipole shape from copper instead of aluminium?
The only times I have done that, the only difference has been a heavier aerial.
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Hardy,
thank you for the link to wi fi aerial. I have made several like that, even double biquad, but they are not powerful enough. Adding directors has proved no better, presumably because the added gain is negated through mismatch of impedance. It is very frustrating making wi fi aerials when you know you have good designs but have no way of knowing the impedance nor of how to match. Far and away my best wi fi aerial is a sky dish with cantenna, but took many days of experimenting with where to place the receiving rod, [length 30mm] within the can,how far to place the can from dish, angle of that can to dish etc.
Many of my designs are based on a 1950's book designed for builders of aerials for band 1!
Since we have also moved on to cb aerials, would a SWR meter, and a box to adjust SWR for cb aerials, be of any use with aerials for 2.4ghz? I guess not.
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H
Hardy3:43 PM
Nick . I don't see how you can build better than a parabolic dish ! Unless you look in your book for a really old but efficient aerial a dual rhombic. These are huge for shortwave but not too bad at UHF and above .
You can buy wifi extenders which have the electronics combined with the aerial (look on Amazon) I have one that reaches nearly a mile range. SWR matching is not so important for reception . So you can just guess and use a 1:1 balun for a low impedance dipole or a 4:1 for a higher impedance dipole . A basic dipole is about 73 ohms but adding directors and reflectors brings it lower . So a folded dipole is used which is 300 ohms by itself but adding elements brings it nearer to 75. the Xs are effectively full wavelenth so are high impedance. I found an article that described the tall narrow rectangle that you use as having a low impedance around 50 ohms. Apparently the rectangle is equivalent to one bent half wave dipole stacked on another.
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N
nmugford9:03 PM
hi nick,subsitute the alumin dipole with a insulated copper wire,bent in the shape of the dipole,my indoor aerial picked up a locked picture so it was either better matching to the tv input circiutry or the copper wire
dipole was more efficent.That was hannington,about 40 miles distant at ground level.
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nmugford
I think that was just coincidence at the time!
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Hardy, you are a mine of information.
If you know how to make a balun for 2.4 ghz,be it 4 to 1 or whatever, please let me know. Also, how do I find out the swr of the wi fi aerials I build?
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Hardy, I think when you talk of a mile, you mean point to point, ie both ends with sat dish. I am talking about piggybacking on neighbour's wi fi across the street.
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Hardy
I think swr is crucial for 2.4ghz, that is why however elaborate my aerials, it is difficult to improve on the two 'rabbit ears' on the Edimax box set on wisp.
I use the Edimax, with its aerials removed and substituted with sat dish. It provides no amplification of signal and whilst setting up, noticeable how the signal varies almost second by second, sometimes from 90 down to 40 percent. Presumably this is why it frequently cuts out during use.
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