Full Freeview on the Sudbury (Suffolk, England) transmitter
Brian Butterworth first published this on - UK Free TV
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.
_______
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
|
|
Saturday, 17 June 2023
C
Chris.SE12:27 AM
nick:
Hi Nick, sorry, I had seen it and meant to find a couple of articles for you to read, got side-tracked and forgot :(
In essence, all the elements are active but "tuned" to different frequencies.
The Wiki article gives a good basic understanding as does the article from Don Valley Aerials.
Log-periodic antenna - Wikipedia
The log periodic | Don Valley Aerials
There's a BBC R&D article which I haven't has time to read but will no doubt be interesting -
A UHF log-periodic receiving aerial - BBC R&D
As you'll see, and has previously been mentioned, you can produce a log-periodic for whatever frequency range you want.
So still available from some suppliers is the original UHF Band IV/V wideband or Group T which are now getting more difficult to find as they aren't needed any more for UK transmissions, and there's few continental transmitters yet to clear 700MHz
More readily available now is a Group K (21-48) and a Group A (21-37). I don't recall seeing a specific Group B one, little point really as Group K will do the job.
Hope that helps. If I find anything else of specific interest, I'll post it.
link to this comment |
Sunday, 18 June 2023
N
nick6:55 AM
Chris SE,
Thank you. I will study these. Each element is tuned to its frequency but doubtless all the others get a lesser signal too, adding to overall performance, and doubtless the smaller space between the smaller elements gives some of the advantages of a yagi.
link to this comment |
Monday, 24 July 2023
Transmitter engineering
8:00 AM
8:00 AM
Sudbury transmitter - Sudbury transmitter: Possible effect on TV reception week commencing 24/07/2023 Pixelation or flickering on some or all channels [DUK]
link to this comment |
Friday, 11 August 2023
Transmitter engineering
1:47 PM
1:47 PM
Sudbury transmitter - Sudbury transmitter: Possible effect on TV reception week commencing 07/08/2023 Screen may go black on some or all channels [DUK]
link to this comment |
Monday, 14 August 2023
Transmitter engineering
5:09 AM
5:09 AM
Sudbury transmitter - Sudbury transmitter: Possible effect on TV reception week commencing 14/08/2023 Screen may go black on some or all channels [DUK]
link to this comment |
Friday, 25 August 2023
Transmitter engineering
1:48 PM
1:48 PM
Sudbury transmitter - Sudbury transmitter: Possible effect on TV reception week commencing 21/08/2023 Pixelation or flickering on some or all channels [DUK]
link to this comment |
Monday, 28 August 2023
Transmitter engineering
5:09 AM
5:09 AM
Sudbury transmitter - Sudbury transmitter: Possible effect on TV reception week commencing 28/08/2023 Pixelation or flickering on some or all channels [DUK]
link to this comment |
Monday, 4 September 2023
Transmitter engineering
5:09 AM
5:09 AM
Sudbury transmitter - Sudbury transmitter: Possible effect on TV reception week commencing 04/09/2023 Pixelation or flickering on some or all channels [DUK]
link to this comment |
Friday, 15 September 2023
Transmitter engineering
10:48 AM
10:48 AM
Sudbury transmitter - Sudbury transmitter: Possible effect on TV reception week commencing 11/09/2023 Pixelation or flickering on some or all channels [DUK]
link to this comment |
Monday, 18 September 2023
Transmitter engineering
5:09 AM
5:09 AM
Sudbury transmitter - Sudbury transmitter: Possible effect on TV reception week commencing 18/09/2023 Pixelation or flickering on some or all channels [DUK]
link to this comment |
Select more comments
Your comment please