I don't remember what sort of antenna you are using, but I think it was 
stealthy or indoor. Anything you can do to separate it from the shack and 
get it out in the clear will help, both by reducing computer hash and also 
by strengthening sky-wave signals. Check the integrity of coax connections, 
baluns, antenna switches, filters, etc. to make sure that you are not 
receiving or transmitting very much inside the shack. For example, if you 
switch to a dummy load, does the computer noise go away as it should?
After exhausting all those possibilities, you might consider using a phasing 
unit like the one MFJ sells, that can cancel out much of the hash by means 
of a phase- and amplitude-adjusted hash input from within the shack. I have 
never used one of these devices, but some on this list have, and they should 
work, in theory, although adjustment would be finicky.
73,


Lloyd Rasmussen, W3IUU, Kensington, MD
http://lras.home.sprynet.com
-----Original Message----- 
From: Dr. Ronald E. Milliman
Sent: Tuesday, January 26, 2016 3:22 PM
To: [log in to unmask]
Subject: computer creating noise in my TS-590

My computer is creating noise in my TS-590. It isn't very much, but it is
enough that signals that are weak get covered up, and I cannot copy them. Do
any of you have suggestions on how I can resolve this?



Ron, K8HSY



Dr. Ronald E. Milliman

Retired Professor of Marketing