Had my first pc RFI problem a few months ago.   SSB didn't seem to be a 
problem, but  over 100 watts on cw, or almost any power on rtty on 15 
meters would cause the radio/amp/computer to lock up in transmit. 
Traced it to the keyboard cable and a few ferrites solved almost all of 
  the problem.  Replaced the keyboard with a wireless one and  all is 
well now.

A few thoughts on the shack set up here:  Besides the foot switch 
mounted to a piece of masonite on the floor, there is also a hand switch 
paralleled with the foot switch.  It is just under the edge of the 
desktop at the far left side of the desk. Mounted on the right side 
beneath the desktop is the Alpha Delta 4 position coax switch, so it is 
easy to reach under the desk  and switch antennas.

The 590 sits on top of 4 plastic prescription bottles, with the tops 
removed.   The ones at the rear are about 2 1/2 inches high, and the 
rear feet of the radio fit into the tops of the bottles.   The ones in 
front are maybe an inch higher with a notch cut into each bottle top to 
fit the  larger front feet.

This keeps the radio at the right height and angle for me to reach over 
with my left hand and  do whatever I need to do.   While being very 
stable, it is also very easy to slide the radio forward or backward or 
whatever.  When chasing DX or contesting, I pull it towards the front of 
the desk, almost to the keyboard.   Don't have to strech if I need to 
reach for the radio and it is at the perfect height and angle for me.

73, Steve KW3A

On 6/19/2011 11:38 AM, Richard Wells wrote:
> These shack discussions are very interesting to me. I notice that lots
> of you also have computers in your shack. What if anything do you do
> about interference between computers and radios? Do you use any kind of
> filtering? Thanks
>