[Elecraft] Turn on turn off transients

Don Wilhelm w3fpr at embarqmail.com
Wed May 2 00:02:23 EDT 2012


Those "thumps" may be bothersome for those using powered speakers, I am 
using unpowered speakers and while I hear ag the intensity couple of 
"thumps" at turn on and turn off, neither are offensive and bothersome.  
Perhaps you are increasing with your powered speakers

Do your powered speakers run from the same power supply that you K3 is 
connected to?  If so, I would recommend a test made to determine if the 
computer D and CPU/memory is adequate to run that program,

73,
Don W3FPR .

  10:35 PM, Wayne Burdick wrote:
> Randy Farmer wrote:
>
>> My K3 also "thumps" with power on and off transitions....
> This is an important part of the power-on self-test sequence. It
> allows you, and others, to verify even at some distance from the radio
> that your speaker(s), KIO3 interconnections, large electrolytic
> coupling capacitors, AF amp, DSP, and power supply are all functioning
> properly.
>
> Wayne
> N6KR
>
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