[Elecraft] K3 - Intermittents serial disconnect problem

[Mike Murray]

Rick,

Thanks - I've checked all and the only one that is enabled is my USB 3.0
port for external backup.

73, Mike

On Wed, Jun 28, 2017 at 11:38 AM, Rick WA6NHC <wa6nhc at gmail.com> wrote:

> 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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