[Elecraft] [KPA500] that's what I was running, definitely causes the problem

[Steve Jackson]

Gary

Had 1.18, it exhibits this error, easily reproduced.

I went back to 1.11 and the problem goes away.

Rig is running 4.60 ... I didn't go to 4.61 since it does nothing for this
issue and the single feature it has over 4.60 isn't worth the flash cycle.
I'm actually waiting for the day when the KPA500 band select buttons can be
set to act as band-stacking register controls on the K3.

Another commented observed something about standby and not wanting exciter
power in that mode  ...
... of course, but, my amp is configured to power up in OPER mode.  I
suspect so is George's.

Manually cycling to STBY is ... well, manual.
The rig goes to regular output power when the KPA500 is set to STBY mode
with v1.11 or newer; that's not the issue being discussed.

Steve KZ1X

***


I believe 1.15 had the issue, and 1.18 is the latest revision that should
have fixed the issue.

Gary

On 21 December 2012 09:41, GDanner <gdanner at windstream.net
<http://mailman.qth.net/mailman/listinfo/elecraft>> wrote:

>* I'm having the same issue.*>**>* Recently I installed a KAT500 & upgraded both the KAT500 & KPA500 firmware.*>**>* I'm sure the K3 was sensing when to use full power (KPA500 = OFF or STBY)*>* or*>* reduced power (KPA500 = On & OPER) before; it did not seem to matter*>* whether*>* the K3 or KPA500 was turned on first.*>**>* Now I have to make sure both are on and then switch the KPA500 to STBY then*>* back to OPER otherwise the K3 sends full power (100 watts) to the KPA500 &*>* it faults.*>**>* George*>* AI4VZ*