[TenTec] Clicking noise in Jupiter rx audio

[KZ5X]

    My Jupiter receive audio has an S3-S4 "clicking" noise (I 
think it developed coincidental with the most recent firmware 
upgrade or installation of JT-11 autotuner which occurred about 
the same time).  It is a regular sound, maybe 5-7 cps, much like 
sparkplug noise from an idling engine.  Occurs without antenna, so 
is in the rig.  Does not happen at all when Jupiter is under 
computer control by Carl Moreschi's program.
    Anybody else had this problem, and fixed it?  Thanks.
 
Dan
KZ5X 

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