[Elecraft] Possible K3 over shoot on transmit

Bob McGraw K4TAX rmcgraw at blomand.net
Sun Jan 12 15:00:35 EST 2020


Yep, the power control circuit does have a bit of initial character 
overshoot.    This is noticed when changing power levels or when 
changing bands and a few other instances which I don't recall.   Since 
it occurs on the first CW element only, and doesn't fault the amp,  I 
don't consider it of concern.

You do have the ALC active from the amp and correctly set in the amp 
menu and the K3S menu.......don't you?   That's what it is there for.  
Just be sure during normal operation the amp ALC is not active as seen 
on the K3S ALC indicator.

73

Bob, K4TAX

On 1/12/2020 11:32 AM, Gary Hunt via Elecraft wrote:
> Just started noticing that occasionally the first character sent on CW will peg the watt meter on the KPA500.  It does not fault.  Sometimes a QSY to a different band or even a different band segment will trigger it again, sometimes not. Both of my antennas require my KAT500 which seems to have found acceptable matches for both antennas on the appropriate bands. It just uses a previous found solution when QSYing.  Trying to determine which piece of equipment might have an issue.  Planning on sending the K3 in for a check up but was hoping to have a K4 here first.
> Any thoughts?
> 73, Gary KC9EE
>
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