[RTTY] RFI Problems

[Kostas SV1DPI]

try unplug all cables from your computer. plug one cable every time and try 
to find the "bad" one. Put some ferrites on this cable until the problem 
will be solved. Be careful to use no 43 or no31 ferrites. All ferrites are 
not the same. It is good if you plan your shack such a way so coax is as far 
as possible from computer or control cables. In any case coax must not run 
in parall with computer-control cables. GL
Kostas sv1dpi

----- Original Message ----- 
From: "Jim Reisert AD1C" <jjreisert at alum.mit.edu>
To: "Marc Tessier - VE3TES" <ve3tes at cogeco.ca>
Cc: <rtty at contesting.com>
Sent: Monday, December 08, 2008 7:22 AM
Subject: Re: [RTTY] RFI Problems


> Ferrite, ferrite, ferrite.  Put some on the coax coming out of your
> radio, and more where the coax leaves the house.  This will keep
> common mode stuff off the coax.
>
> See this article by W1HIS:
>
> http://yccc.org/Articles/W1HIS/CommonModeChokesW1HIS2006Apr06.pdf
>
> 73 - Jim AD1C
>
>
>
> -- 
> Jim Reisert AD1C/Ø, <jjreisert at alum.mit.edu>, http://www.ad1c.us
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