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Satellite C-Band TV: Death By Overload, Pt.2

Practical ideas to minimise, if not eliminate, interference to C-band satellite reception from wireless broadband signals.

by Garry Cratt*

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Obviously, you will know when your satellite signal is being interfered with. But is it interference from Unwired or from another source?

Remember how difficult it was to align your dish to receive the miniscule amount of signal in the first place? And then how often the signal was interefered with – before the days of wireless broadband? You may be jumping to conclusions and blaming the wrong source.

However, if the interference has only been apparent since about last August, the chances are it is Unwired causing your problems – either Unwired itself (in which case the interference would be pretty-much constant), or a local Unwired user (in which case the interference could be intermittent, especially if the user turns his/her computer off at times).

Even if the source of interference is not Unwired, many of the suggestions made in this second article may well assist you. Something is getting in – so why not eliminate all possibilities!

It’s always best to try the easiest (and usually cheapest!) solutions first. Remember, though, this is an imperfect science and there are few cheap cures. However, every problem that can be eliminated will contribute to the overall success in improving performance.

Click for larger image
Spectrum analyser screen showing the interfering signal - the huge "spike" halfway up the screen.
Click for larger image
And here's the interfering signal after the combiner - it's dramatically attenuated.

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