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.
This transmitter has no current reported problems
The BBC and Digital UK report there are no faults or engineering work on the Sudbury (Suffolk, England) transmitter._______
Digital television services are broadcast on a multiplexes (or Mux) where many stations occupy a single broadcast frequency, as shown below.
64QAM 8K 2/3 24.1Mb/s DVB-T MPEG2
DTG-6 256QAM 32KE 2/3 40.2Mb/s DVB-T2 MPEG4
DTG-8 64QAM 8K 3/4 27.1Mb/s DVB-T MPEG2
H/V: aerial position (horizontal or vertical)
The Sudbury (Suffolk, England) mast is not one of the extended Freeview HD (COM7 and COM8) transmitters, it does not provide these high definition (HD) channels: BBC Four HD, BBC News HD, CBeebies HD, Forces TV, FreeSports, More4 +1, Now 70s, PBS America +1, That's TV , Quest Red +1, RT HD.
If you want to watch these HD channels, either use Freesat HD, or move your TV aerial must point to one of the 30 Full Freeview HD transmitters. For more information see the want to know which transmitters will carry extra Freeview HD? 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 2/3 24.1Mb/s DVB-T MPEG2
DTG-6 256QAM 32KE 2/3 40.2Mb/s DVB-T2 MPEG4
DTG-8 64QAM 8K 3/4 27.1Mb/s DVB-T MPEG2
H/V: aerial position (horizontal or vertical)
Are you trying to watch these 11 Freeview HD channels?
The Sudbury (Suffolk, England) mast is not one of the extended Freeview HD (COM7 and COM8) transmitters, it does not provide these high definition (HD) channels: BBC Four HD, BBC News HD, CBeebies HD, Forces TV, FreeSports, More4 +1, Now 70s, PBS America +1, That's TV , Quest Red +1, RT HD.
If you want to watch these HD channels, either use Freesat HD, or move your TV aerial must point to one of the 30 Full Freeview HD transmitters. For more information see the want to know which transmitters will carry extra Freeview HD? 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 - 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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Thursday, 23 June 2022
C
Chris.SE1:24 AM
nick:
Hi Nick, ignore any fatal error message when posting, the posts do get through although there can often be a delay (due to caching, not the error).
Even with your technical knowledge, I'm sure you know you are in a very tricky location and even small changes to aerial location can make a big difference to reception. I assume you've checked out your predicted reception, it's not clever, even the Aldeburgh relay can be poor in some spots.
Whilst the frequency planners can and sometimes do make mistakes, I'm sure that in coastal locations like yours where there is potential for interference from the continent in "lift" conditions (Tropospheric ducting/Temperature Inversion) and likewise interference to them from us, the UHF channels chosen for the primary services (PSBs in our case) will have been to minimise this possibility, hence what you are experiencing. However there's still the possibility of interference not just from the continent, but from other UK transmitters in the "wrong" lift conditions. In your case, considering your aerial direction then Oxford and Wenvoe come to mind as possibilities, but even then under extreme conditions interference could come from anywhere using the same frequencies.
Are you using a "traditional" yagi, or still using a home-brew? If it's a traditional yagi then you're probably aware that it'll have a bit more gain on the higher channels which will help a bit with the BBC (PSB1) and ITV/C4/C5 (PSB2) muxes.
These days a quality Group K or Group B aerial can have similar performance BUT it will depend on the individual aerial as to which will have the best gain towards the bottom end of the band as well as the top end.
Attempting to position an aerial to make use of building screening from the most common source of interference (the continent) can conflict with the height required to get adequate signal from the intended source. Use of stacked arrays can sometimes help reducing sidelobes etc. but this is much more of a specialised technique.
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Friday, 24 June 2022
R
Rex Watson3:39 PM
Any news about what will happen to Freesports? It seems odd that Sky will just abandon it.
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S
StevensOnln14:16 PM
Rex Watson: Freesports have announced that they will be leaving Freeview next week but will continue to broadcast on Sky and cable, as well as via their online player https://www.freesportsplayer.tv and Samsung TV Plus.
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