[Elecraft] Pro Audio Engineerint power Supply

Jim Brown jim at audiosystemsgroup.com
Tue Oct 1 02:13:16 EDT 2019


Several years ago, Howard sent me one to test. It was very quiet when 
only powering my KX3 on receive, which draws only about 150 mA. When I 
used it to supply something that drew 4A, it was noisy. So the question 
is, are you using it power anything else in addition to the KX3?

A good common mode choke made by winding the right number of turns of 
the power cord around the right #31 core should suppress the noise. You 
should also make certain that everything in your station is properly 
bonded. See http://k9yc.com/GroundingAndAudio.pdf You should also make 
certain that if you are using an end-fed wire antenna that you have 
provided a suitable counterpoise for it.

73, Jim K9YC

On 9/30/2019 2:44 PM, Terry Basom wrote:
> When I plug in the PAE-Kx33 power supply to my KX3,  I get a huge amount of
> hash noise. It's supposed to be low-RFI Anybody with a similar problem?
>   Any suggestions?




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