[Elecraft] K2/100 RFI problem using Astron 20A

Elmore's wa4ywm at comcast.net
Wed Dec 7 22:15:44 EST 2005


I am in the testing phase of my KPA-100 construction using an Astron 20A 
power supply. When I attempt to adjust the power of the K2 in Tune mode it 
will reset at levels between 40-90W depending on the band selected. I tried 
adjusting the power using a battery and I was successful to 100W without 
having a reset. Therefore the problem points to the Astron. Tech Support 
mentioned to me that this is a problem that has happened a number of times.

I have tried ferrite beads on the DC lines, a capacitor across the '+' & '-' 
leads and verifying that the '-' lead is connected to the case (a solution 
that I found on the web). Nothing has helped.

I haven't found anything on the discussion list addressing this issue. Has 
anyone had this problem ?

TNX & 73,  Jim 




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