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 29/04/2024 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, 5 February 2024
Transmitter engineering
5:10 AM
5:10 AM
Sudbury transmitter - Sudbury transmitter: Possible effect on TV reception week commencing 05/02/2024 Pixelation or flickering on some or all channels [DUK]
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Tuesday, 6 February 2024
C
Chris.SE5:51 PM
nick horrex:
As I mentioned, they can use slightly different Lithium technologies.
AA 1.5v Lithium rechargeables exist but are not particularly cheap, eg. one example, see
https://www.batterystation.co.uk/xtar-1-5v-aa-2200mah-lithium-rechargeable-batteries-4-pack/
There are other (major) sellers who I don't like, so not quoting !!
For your 3v CR2's here's one example which comes with the special charger
https://www.ebay.co.uk/itm/364242658282 but beware there are some other sellers (major again) who can't seem to distinguish between a 3v and a 3.7v, the latter being slightly longer, and/or non-rechargeables !!!
As for the LP. I'm not sure what you mean by 13 "whole" elements. Each rod is separate on a LP. The lengths of the rods determines the range of frequencies it will receive and the number will determine the gain as well. You can zoom in on the links I gave. I think Blake have been in the business long enough to know what they re doing!!
Here's some additional reading for you -
https://www.donvalley.tv/content/log-periodic
https://en.wikipedia.org/wiki/Log-periodic_antenna
If you want to get really technical and understand the maths (I don't have time to !)
https://www.mdpi.com/2079-9292/9/11/1830
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Wednesday, 7 February 2024
N
nick horrex6:55 PM
Chris SE,
Thank you for so much info to study.
I still don't know, though, for example, what makes one lithium 1.5v battery rechargeable and another 1.5v lithium battery not.
I should have said my log is 16 whole elements, [I am speaking as of a yagi.] That is 32 of your little ones.
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Saturday, 10 February 2024
N
nick horrex9:49 AM
Chris SE,
I have been in touch with Blake. I believed logs were meant to be good at rejecting signals from the rear. They say not and that their DMX range are better. Since their largest dmx is pretty much the same as what I have made myself, I doubt I would see any improvement.
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C
Chris.SE3:07 PM
nick horrex:
I'm totally surprised that someone from Blake has said that logs aren't good at rejecting signals from the rear, they are, and very low/no sidelobes, they are also good at impulse noise rejection, good cross-polar rejection and they also have a flatter response and considerably less wind resistance!
Perhaps you were talking to someone from Sales, just wanting to flog you a more expensive aerial, they're at least 10 & 20 more depending on the number of elements!
I suggest you get back in touch, ask for technical support and ask them if they can email you the polar diagrams for the DMX10K-F and the BLA-LP56K
In the meantime have a look at this from ATV Aerials and TV
Their XB10 range is almost identical to Blake's DMX10s
https://www.aerialsandtv.….jpg
Compare to this
Aerial polar response diagrams A.T.V. Poles, Brackets, Clamps & Aerials
You will note the absence of sidelobes and low rear rejection for the LP in this second graph top LH plot.
You will find similar information from multiple sources (not just the sellers) if you bother to do the research. Frankly, you have no idea exactly what your homebrew aerial performs like unless you have had it professionally tested. It could have a very peaky response, have particular problems with 602MHz - C37 etc.etc.
You have been bleating on about the C37 problem for months and months, so long I've lost count. Yet you seem unwilling to take the simplest of steps to eliminate possibilities, the free Filter to eliminate Mobile signal interference. The problem may go away and your home brew could continue to give years of service. If it doesn't then my next choice would be a decent well made LP as already suggested, but you try what you like.
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Monday, 12 February 2024
N
nick horrex12:05 AM
Chris SE, thanks.
I was communicating online, and he sent diagrams. It started with your advised log but ended up with the highest gain which from the 'x' type.
I have made extensive tests with my homebrew, just for my own interest, testing at each tiny change. I have altered spacings, length of elements, width and height of reflector and it is one of the few that gets 37. lengthening of elements brings better signal on 29, but if I do too much it loses on 47. I am particularly proud of the dipole which I call batwing, substantially larger than most.
Any more thoughts on 1.5v lithium batteries?
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Transmitter engineering
6:09 AM
6:09 AM
Sudbury transmitter - Sudbury transmitter: Possible effect on TV reception week commencing 12/02/2024 Pixelation or flickering on some or all channels [DUK]
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Monday, 19 February 2024
Transmitter engineering
10:47 AM
10:47 AM
Sudbury transmitter - Sudbury transmitter: Possible effect on TV reception week commencing 19/02/2024 Pixelation or flickering on some or all channels [DUK]
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Monday, 26 February 2024
Transmitter engineering
5:09 AM
5:09 AM
Sudbury transmitter - Sudbury transmitter: Possible effect on TV reception week commencing 26/02/2024 Pixelation or flickering on some or all channels [DUK]
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Monday, 4 March 2024
Transmitter engineering
5:09 AM
5:09 AM
Sudbury transmitter - Sudbury transmitter: Possible effect on TV reception week commencing 04/03/2024 Pixelation or flickering on some or all channels [DUK]
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