[Elecraft] K3 transmission problem: noise rather than audio on SSB & sometimes digital

[Jim Hooper]

Dear Elecraft friends, 

My K3 #6884 is exhibiting a transmission problem first identified when I couldn’t check in to one of my favorite 75 m nets the other morning on SSB.   

The behavior is that it is transmitting noise.   When I increase MON volume I can hear it quite clearly.    This happens on both of two microphones, MH3 and Yamaha CM500.   It happens less frequently on digital modes (using line in) and happens for a moment at the beginning of a transmission and then goes away. 

Here is a link to the audio recording I made of it using my iPhone (m4a file type).  I was not transmitting at the time as I was in TEST mode. 
https://www.dropbox.com/s/lfxo79hhahsj1uh/K9QJS-K3-TX-Monitor-Test.m4a?dl=0 <https://www.dropbox.com/s/lfxo79hhahsj1uh/K9QJS-K3-TX-Monitor-Test.m4a?dl=0>     

I have done a reset and reloaded all configuration parameters.   I am running 5.60 firmware on it and have reloaded the firmware to the K3.  

Thoughts? 

Thanks in advance and happy New Year. 

73, 
Hoop
K9QJS