[Elecraft] KPA1500 / K3 Mystery

[David Box]

Bruce

My system works  with no issues.

I originally had some problems due to external software and macros I had 
created that used the PC command to set power for different modes.  The 
K3 stores the last power used per band when either in OP or STBY with 
the KPA1500, if you are getting the messages showing that the K3 
recognizes the change in KPA operating mode then my only question is are 
you using any software or have macros that might be changing power 
without you knowing. I had to take all the PC commands out of my macros 
for safety.

If all you say is correct (not doubting) and you are getting the 
messages, not using any software or macros then only suggestion is to 
contact support.

de Dave K5MWR


On 10/18/2020 11:28, ockmrzr at gmail.com wrote:
> YES, when switching the KPA1500 between OPER and STBY, the K3 displays the
> messages "KPA500 OPERATE" and "KPA500 STANDBY", depending.
>
>   
>
> YES, the K3 is set CONFIG: POWER SET is Per Band.
>
>   
>
> YES, when in STBY on the KPA1500, I set the "no amp" power to 100 watts, and
> when in OPER, I set drive level per band; usually less than 30 watts, which
> gets close to the legal limit.
>
>   
>
> Still the same results as described below.
>
>   
>
> 73 de Bruce, N7TY
>
> Yuma, AZ
>
>   <http://www.qsl.net/n7ty> www.qsl.net/n7ty
>
>   
>
> From: ockmrzr at gmail.com <ockmrzr at gmail.com>
> Sent: October 18, 2020 06:32
> To: 'elecraft at mailman.qth.net' <elecraft at mailman.qth.net>
> Subject: KPA1500 / K3 Mystery
>
>   
>
> I made a recent change to the "Band Change-> STBY" setting on the KPA1500,
> changing from NO to YES.  I did this to ensure the AMP doesn't have any wild
> SWR or PWR spikes before the ATU has a chance to "remember" it's setting
> after a band change.
>
>   
>
> Issue:  When switching the AMP from OPER to STBY, the K3 is supposed to
> switch from the drive power setting (~25 watts) in OPER, to 100 watts in
> STBY, it does not, it remains at the drive power setting.  I am 99% sure I
> have all the cabling and settings set correctly in the K3 and KPA1500.  I
> went through and manually reset the power settings on each band to let the
> K3 and KPA1500 "re-learn" the change made, however, still no joy.
>
>   
>
> Jim, W6YA, and I have been going back and forth, however neither of us have
> had any luck.
>
>   
>
> Do you KPA1500/K3 owners out there have any ideas or suggestions?
>
>   
>
> 73 de Bruce, N7TY
>
> Yuma, AZ
>
> www.qsl.net/n7ty <http://www.qsl.net/n7ty>
>
>   
>
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