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Freeview reception at CB21 4RT


For reliable and stable Freeview reception, you need an unobstructed path between the TV aerial on your roof and the digital TV transmitter. The map below shows the transmitters predicted to provide a signal at this location.

You can click on any transmitter symbol to show the coverage area as a green overlay on the map. Double click on a transmitter symbol to go to the transmitter information page.

You can also view the ten closest potential '4G-at-800' mobile phone masts within 1.5km of the selected location - these masts may be used for 4G-at-800 mobile broadband services from 2013-2015.

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There are 0 mobile phone masts within 1.5km of CB214RT (page shows closest 10)

What do the map symbols mean?

 EE,  Multiple operators,  O2,  3,  Vodafone,  location on line-of-sight,  Selected location,  Freeview transmitter,  Freeview light transmitter,  Engineering/fault today.

These icons show the potential locations for 4G-at-700MHz services that may interfere with Freeview reception at some point from 2020 when the 5G 700MHz services start.

For actual mobile phone reception prediction (at 800-960MHz and 1710-2170MHz) see these phone operator's mapping sites: Three O2 T-Mobile EE Virgin

Predicted Freeview channel list

1BBC One (SD)Sudbury EastPSB1
2BBC TwoSudbury EastPSB1
3ITV 1 (SD)Sudbury Anglia (East)PSB2
4Channel 4 (SD)Sudbury Anglia (East)PSB2
5Channel 5Sudbury Anglia (East)PSB2
 
6ITV 2Sudbury Anglia (East)PSB2
9BBC FourSudbury EastPSB1
10ITV3Sudbury Anglia (East)PSB2
11Sky ArtsSudbury COM5
12QuestSudbury COM6
 
13E4Sudbury Anglia (East)PSB2
14Film4Sudbury Anglia (East)PSB2
15Channel 4 +1Sudbury Anglia (East)PSB2
17ReallySudbury COM5
18More4Sudbury Anglia (East)PSB2
 
19DaveSudbury COM5
20DramaSudbury COM4
215USASudbury COM4
23BBC ThreeSudbury EastPSB1
25WSudbury COM6
 
26ITV4Sudbury Anglia (East)PSB2
27YesterdaySudbury COM6
29ITV2 +1Sudbury COM4
30E4 +1Sudbury Anglia (East)PSB2
31E4 ExtraSudbury COM5
 
325STARSudbury COM4
335ActionSudbury COM4
34GREAT! moviesSudbury COM6
35ITV1 +1Sudbury Anglia (East)PSB2
36pickSudbury COM5
 
39DMAXSudbury COM6
40Quest RedSudbury COM5
41LegendSudbury COM4
42GREAT! movies actionSudbury COM4
43Food NetworkSudbury COM5
 
44HGTVSudbury COM6
46Channel 5 +1Sudbury COM4
47Film4 +1Sudbury COM5
48ChallengeSudbury COM5
494sevenSudbury COM5
 
565SELECTSudbury PSB3
57Smithsonian ChannelSudbury COM5
58ITVBe +1Sudbury COM4
59ITV3 +1Sudbury COM4
60Drama +1Sudbury COM5
 
64BlazeSudbury COM4
67CBS RealitySudbury COM4
70Quest +1Sudbury COM5
71Quest Red +1Sudbury COM6
73HobbyMakerSudbury COM6
 
74Dave ja vuSudbury COM4
75Yesterday +1Sudbury COM5
78TCCSudbury COM4
81Blaze +1Sudbury COM4
82Talking Pictures TVSudbury COM6
 
83Together TVSudbury COM5
84PBS AmericaSudbury COM6
88Classic HitsSudbury COM6
89ITV4 +1Sudbury COM4
101BBC One HDSudbury PSB3
 
102BBC Two HDSudbury PSB3
103UTV HDSudbury PSB3
103STV HDSudbury PSB3
103ITV 1 HDSudbury PSB3
104Channel 4 HDSudbury PSB3
 
105Channel 5 HDSudbury PSB3
106BBC Four HDSudbury PSB3
108BBC Scotland HDSudbury PSB3
109BBC Three HDSudbury PSB3
110Channel 4 HD (Wales)Sudbury PSB3
 
201CBBCSudbury EastPSB1
202CBeebiesSudbury EastPSB1
203CITVSudbury COM4
204CBBC HDSudbury PSB3
205CBeebies HDSudbury PSB3
 
208Pop PlayerSudbury COM4
209Ketchup TVSudbury COM4
210Ketchup TooSudbury COM4
211YAAAS!Sudbury COM4
231BBC NewsSudbury EastPSB1
 
232BBC ParliamentSudbury EastPSB1
233Sky NewsSudbury COM5
235Al Jazeera EngSudbury COM6
250BBC Red ButtonSudbury EastPSB1

 

Advanced options

Show good and blocked paths from CB21 4RT for aerial height of ...

10m20m (Angel of the North)25m30m40m56m (Hyde Park Flats, Sheffield)62m (Monument)90m (Royal Liver Building, Liverpool)107m (Meridian Quay Tower, Swansea)115m (Bridgewater Place, Leeds)127m (Glasgow Tower)143m (Guy's Hospital)158m (Blackpool Tower)170m (Spinnaker Tower, Portsmouth)180m (The Gherkin/BT Tower) 193m (Tower 42)235m (Canary Wharf)310m (The Shard)(default view)

Comments
Monday, 22 May 2017
G
Graham Jones
3:59 PM
Alloa

The aerial is in the loft and we had good reception on all channels until quite recently. We now have several channels with either no signal or break up intermittantly. I have retuned from scratch without any difference being made there are no new electronic items in the home. All the channels are on Black Hill COM4 they are channels 10, 20, 66 etc.

link to this comment
Graham Jones's 1 post GB
M
MikeB
sentiment_very_satisfiedPlatinum

10:10 PM

Graham Jones: Your just 31km from the transmitter (Black Hill) - so its unlikely to be a problem with you getting a signal.

Check the signal strength - is it too high or too low. A month ago you had a retune event, and it could be that signal levels have risen at that point, and now its a bit high on some muxes, hence the 'no signal', etc.

But if you signal levels are low, then its certainly your system - so check for frayed cables, loose connections, etc.

link to this comment
MikeB's 2,579 posts GB
Friday, 26 May 2017
P
paul denning
4:59 PM
Bristol

getting break up on channels on Multiplex COM4 - SDN - SDN Ltd - ilchester crescent transmitter

link to this comment
paul denning's 4 posts GB
Saturday, 27 May 2017
MikeP
sentiment_very_satisfiedPlatinum

10:28 AM

Paul Denning:

There is no fault reported at the Bristol Ilchester Crescent transmitter. Check your aerial cables and connections. Also check you signal strength, if it is above 85% then search this website for 'too much of a good thing' as too high signal will cause your problem.



link to this comment
MikeP's 3,056 posts GB
P
paul denning
6:27 PM

paul denning: the breakup cleared after a few hours

link to this comment
paul denning's 4 posts GB
M
MikeB
sentiment_very_satisfiedPlatinum

8:31 PM

paul denning: You very close to the transmitter, and MikeP rightly suggested too high a signal. Just because the signal has stopped breaking up does not mean its cured - it could just be that high pressure etc has pushed signal strength above the point where the tuner is happy. But its probably going to happen again.

link to this comment
MikeB's 2,579 posts GB
Sunday, 28 May 2017
P
paul denning
7:44 PM

MikeB: yes I understand what high pressure does to tv signals - but would expect it would happen to more than one mux at a time

link to this comment
paul denning's 4 posts GB
Monday, 29 May 2017
MikeP
sentiment_very_satisfiedPlatinum

10:47 AM

Paul Denning:

It is not just high pressure that causes problems such as you report. Being so close to the transmitter means that you may well be receiving too much signal which overloads the tuner in your equipment, so causing break up. It will vary by small amounts with different weather patterns, but the weather is unlikely to be the main cause of your reported problems.

Please chack the signal strengths for all the available multiplexes. If they, or any one of them, is above 85% then you have too much signal and it needs to be reduced by fitting an in-line attenuator. They come in various strengths so try a 6dB one first. They are quite cheap to buy on line and be prepared to fit a stronger one of 12dB if necessary to give good performance. Your signal strengths must be between 55% and 85% for SD multiplexes and between 65% and 85% for HD multiplexes.



link to this comment
MikeP's 3,056 posts GB
M
MikeB
sentiment_very_satisfiedPlatinum

11:15 AM

paul denning: All I meant was that a very slight change would mean that your signal would change in a way that would be noticed - it could be any variable.

As MikeP says, get a load of attentuators - you can put them in series, to get the right level. 6km is very close to the transmitter, you've been lucky it hasn't happened before.

link to this comment
MikeB's 2,579 posts GB
P
paul denning
5:18 PM

MikeP: thanks for your advice -I will see what happens

link to this comment
paul denning's 4 posts GB
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Your comment please
Please post a question, answer or commentIf you have Freeview reception problems before posting a question your must first do this Freeview reset procedure then see: Freeview reception has changed, Single frequency interference, and Freeview intermittent interference.

If you have no satellite signal, see Sky Digibox says 'No Signal' or 'Technical fault'

If you have other problems, please provide a full (not partial) postcode (or preferably enter it in box at the top right) and indicate where if aerial is on the roof, in the loft or elsewhere.

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