[Elecraft] K-3: USB SignaLink for better RTTY decoding?

[RLVZ at aol.com]

Hi Guys,
 
I really like the K-3 for RTTY.  But I'm trying to maximize  reception as 
during contests I often hear stations calling me that I can't  copy.  I 
believe the weakest link with my RTTY reception is the  SoundCard in my current 
Desktop.  I say this because I use a  different Desktop while operating from 
my Midwest QTH and  that computer seems to decode weak signals with the same 
K-3 a lot  better.  Funny thing is that the processor in that Desktop that  
decodes better is about 50% slower.  So my question is: do  you thinking 
replacing my current Desktop's SoundCard with a USB  SignaLink would improve 
weak signal RTTY reception?  Note: I have done  various routines to calibrate 
the Desktop Sound Card with little  improvement.
 
Thanks & 73,
 
Dick- K9OM