[Elecraft] K3s+KPA500 SSB audio distortion

[Michael Blake]

Bruce, Elecraft is replacing mine too. They came to that conclusion after directing me to make a few tests and report the results. 

73 - Mike - K9JRI


> On Aug 1, 2018, at 20:54, "ks4v at comcast.net" <ks4v at comcast.net> wrote:
> 
> A local ham had the exact same problem. It was not a problem with his setup.  Elecraft replaced the PA board and the problem went away.BruceKS4V
> -------- Original message --------From: Jim Miller <jtmiller47 at gmail.com> Date: 8/1/18  10:42 AM  (GMT-06:00) To: Ignacy <no9e at arrl.net> Cc: elecraft at mailman.qth.net Subject: Re: [Elecraft] K3s+KPA500 SSB audio distortion 
> I ran my KPA500 for several years at 500w and often received unsolicited “great audio” reports. CM500 was my headset. 
> 
> Something is wrong with your setup. 
> 
> Jim ab3cv (have kpa1500 now)
> 
> On Aug 1, 2018, at 11:09 AM, Ignacy <no9e at arrl.net> wrote:
> 
> Could it be RF feedback? You can check it by transmitting into a dummy load
> or lowering the drive power.
> Ignacy, NO9E  
> 
> 
> 
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