[Elecraft] K3 - Intermittents serial disconnect problem

[Rick WA6NHC]

If you're using anything USB related (serial converter) start with: in 
Device Manager, make sure that for EACH USB setting, under the power 
management tab, that the ability to power down is NOT enabled.

The port could be going into 'sleep' mode to save energy.

Have you tried it with different software controls?  The update rate for 
some software can push the limits of the serial data rate (or the CPU of 
the K3).

Rick nhc/7


On 6/28/2017 8:58 AM, Mike Murray wrote:
> I've been experiencing a strange problem with my K3 and have been
> unsuccessful in isolating the cause.  At times it just loses the serial
> connection to the PC and the K3 must be power cycled to restart the
> connection.  It happens both during active contest logging as well as when
> sitting idle - the connection just stops.  I've tried several logging
> applications with the same results.
>
> At first I thought it might be related to the PigKnob I have between the
> serial port and K3, but running the serial cable direct resulted in the
> same problem.  I've also seen the problem using a different PC with an
> Elecraft serial to USB cable for the connection.
>
> Indications are that a problem might exist in the K3, but I can't envision
> why it would work flawlessly for some random period and then fail.  Any
> ideas for further troubleshooting? I've entertained updating to the KIO3BUPKT
> KIO3B Upgrade Kit,
> but don't know that the extra expense would be worth a try.
>
> 73,
> Mike - W0AG
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