Jim,
If you follow Jim Brown's advice in his RFI tutorial, you do not need to
go the the expense of a RigBlaster or SignaLink at all - a good quality
external soundcard will do the job at a much lower price.
Bond the computer and the radio together as Jim advises, and transformer
isolation will not be necessary, just a higher quality soundcard for the
computer.
OTOH, if you also want the other features of the Rigblaster, that is a
'horse of a different color' - the Rigblaster will do an adequate job as
a soundcard for digital modes (but it may not be the lowest noise level
soundcard).
73,
Don W3FPR
On 6/27/2013 8:56 PM, Jim Lowman wrote:
Jim, would a RigBlaster be a better choice in the case that you
mentioned, instead of the SignaLink?
72/73 de Jim - AD6CW
Another observation. A few years ago, I surveyed low cost USB sound
cards sold for use in the home studio and DJ market, found several
that looked promising, and bought two of them. Both made significant
improvements in the DECODING of digital signals, and also cleaned up
the computer's TX audio. These were NOT expensive units -- a little
Numark unit ($35 at B&H Photo) worked just as well as a $75 Tascam.
And, unlike the more expensive SignalLink, which has Pin One Problems
that cause RFI, the Numark and the Tascam are free of these problems.
73, Jim K9YC
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