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 problemsThe BBC and Digital UK report there are no faults or engineering work on the Sudbury (Suffolk, England) transmitter.
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.
1 BBC One (SD) East, 2 BBC Two England, 9 BBC Four, 23 BBC Three, 201 CBBC, 202 CBeebies, 231 BBC News, 232 BBC Parliament, 250 BBC Red Button, plus 15 others 700 BBC Radio 1, 701 BBC Radio 1Xtra, 702 BBC Radio 2, 703 BBC Radio 3, 704 BBC Radio 4 (FM), 705 BBC Radio 5 Live, 706 BBC Radio 5 Live Sports Extra, 707 BBC Radio 6 Music, 708 BBC Radio 4 Extra, 709 BBC Asian Network, 710 BBC World Service, 719 BBC Norfolk (BBC local radio), 720 BBC Suffolk (BBC local radio), 722 BBC Cambridge (BBC local radio), 734 BBC Essex (BBC local radio),
3 ITV (SD) (Anglia (East micro region)), 4 Channel 4 (SD) South ads, 5 Channel 5, 6 ITV 2, 10 ITV3, 13 E4, 14 Film4, 15 Channel 4 +1 South ads, 18 More4, 26 ITV4, 30 E4 +1, 35 ITV +1 (Anglia east),
56 5SELECT, 101 BBC One HD (England no regional news), 102 BBC Two HD (England), 103 ITV HD (ITV Meridian Southampton), 104 Channel 4 HD South ads, 105 Channel 5 HD, 106 BBC Four HD, 109 BBC Three HD, 204 CBBC HD, 205 CBeebies HD, plus 1 others 66 TBN UK,
12 Quest, 20 Drama, 21 5USA, 29 ITV2 +1, 32 5STAR, 33 5Action, 41 Legend, 42 GREAT! movies action, 46 Channel 5 +1, 58 ITVBe +1, 59 ITV3 +1, 64 Blaze, 67 CBS Reality, 74 Dave ja vu, 78 TCC, 81 Blaze +1, 89 ITV4 +1, 203 CITV, 208 POP MAX, 209 Ketchup TV, 210 Ketchup Too, 211 YAAAS!, plus 15 others Create and Craft, Racing TV, Kiss Chat & Date, Proud Dating, ADULT Xpanded2, 16 QVC, 22 TJC, 263 SonLife, 264 VisionTV, 265 On Demand 365, 269 Arise News, 670 ADULT Section (start), 724 Capital, 727 Absolute Radio, 728 Heart,
11 Sky Arts, 17 Really, 19 Dave, 31 E4 Extra, 36 pick, 40 Quest Red, 43 Food Network, 47 Film4 +1, 48 Challenge, 49 4seven, 57 Smithsonian Channel, 60 Drama +1, 70 Quest +1, 75 Yesterday +1, 83 Together TV, 233 Sky News, plus 8 others 45 Gems TV, 85 CRAFT EXTRA , 673 ADULT smileTV3, 723 talkSPORT, 730 RNIB Connect, 731 Classic FM, 732 LBC, 733 Trans World Radio,
FreeSports, 25 W, 27 Yesterday, 34 GREAT! movies, 39 DMAX, 44 HGTV, 71 Quest Red +1, 73 HobbyMaker, 82 Talking Pictures TV, 84 PBS America, 88 Classic Hits, 235 Aljazeera English, plus 19 others ADULT smileTV2, ADULT Studio 66, 37 QVC Beauty, 38 QVC Style, 51 Ideal World, 72 Jewellery Maker, 206 Pop, 674 ADULT Babestn, 678 Xpanded TV, 699 ADULT Section, 711 Hits Radio, 712 KISS FRESH, 713 KISS, 714 KISSTORY, 715 Magic, 716 Greatest Hits Radio, 717 Kerrang!, 718 Smooth Radio, 725 Premier Radio,
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 0 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: .
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|
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?
|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
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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Just come across your comments, thanks.
I think the mux on C31 is probaly the worst of the lot, though all are affected at times. When I lose BBC and ITV I have tried the HD mux, which does not work either.
I am talking about all my aerials. When one loses signal, so do the rest. I am wondering if a log periodic would be better, we have plenty of signal strength for one.
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If you are feeling like experimenting, then certainly a log periodic would be worth trying as it will have less sidelobes and rejection from the rear is better, beamwidth is also generally narrower. There's quite a few appearing now in recent times, so they are getting more popular.
There's a bit of tropo around at present (BBC & Freeview have warnings) and certainly last weekend ish during some of the hot weather continental reception was coming in on parts of the east coast.
As you undoubtedly know, LPs will have a flatter response over the band which could give a bit more gain on the lower channels but less at the top depending on what you choose and compared to what you currently have.
With your previous experimenting etc., you'd know what sort of gain you have with your current setup and therefore what sort of LP to choose. There's quite a few "K" group LPs around now as well (Blake are making some, as well as others). "K" group is the "new" wideband now that COM7 has gone, there's nothing above C48 (except Mobile as and when it appears!).
Whilst wideband ones are still available, I get the impression that stocks of same are "winding down" in favour of K group, unless you have a filter (or can get a free one from restoretv.uk because there's a new mobile mast near you), K group is worth considering to help being a bit more future-proof from possible mobile interference.
Search carefully as there are many which are quite sensibly priced, there are a number where rip-off prices are being charged for things which aren't special. It depends on what sort you want to go for and where you buy from!
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My location IP12 1JJ
I have been having picture break up for several weeks now. TV in one room seems O.K. Another is faulty most of the time. In attempting to fault find I observed that neither TV is receiving Ch 47 ! Is that a known problem with the Sudbury transmitter?
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UHF channel C47 is the PSB3/BBCB HD multiplex. Your sets need to have an HD/T2 tuner to receive it.. Do your sets have T2 tuners - have you ever had the HD channels eg.on EPG LCNs 101-105 ?
Now unfortunately there's some factors which together don't help with good reception in your postcode although reception is quite variable across the postcode. Even though there is a Relay transmitter in Woodbridge with only the 3 PSB multiplexes even reception of that can be variable depending on where you are, predicted reception from Sudbury - the nearest main transmitter is also "variable" but probably the "best bet" for all 6 multiplexes. So a good quality aerial installation will be essential for the best chance of good reception.
Sudbury has been listed for Planned Engineering the last couple of weeks with "Pixelation or flickering on some or all channels" which if reception is poor could mean no signal (Do NOT retune).
The other factor is Current Weather conditions - Tropospheric Ducting - causing interference from more distant transmitters in Europe or the UK. This can be very variable and is usually short term at any instant but conditions have been persisting for several days, different parts of the UK are being affected at different time (East Anglia can be quite vulnerable). Not all multiplexes will be affected at the same time or at all.
Both Freeview and the BBC have issued warnings about short term interference to reception.
Check that your aerial is still pointing in the correct direction which should be ~250 degrees (that's almost WSW) with the rods (or squashed Xs) horizontal. Make sure the downlead isn't flapping in the wind and just check your coax connections behind the TV etc.
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As mentioned in my reply to Mike H, you have the combination of Planned Engineering and the Current Weather Conditions. Even though your aren't too far from the transmitter, from what you've described the interference from Tropospheric Ducting sounds like the most likely problem.
However, worth checking your aerial is still pointing correctly, for you it should be bearing 96 degrees (6 degrees S of due E) with the rods (or squashed Xs) horizontal. Also check your downlead and coax connections.
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