Ummmm ... maybe I misunderstand you, or you know something I don't know, but why do you switch the KPA500 to standby before initiating a tune cycle on the KAT500? I set the K3 tune power such that I get 25 W from the KPA500, and tune with the KPA in Operate all the time. My KAT500 seems to like about 25 W, 20 W is kind of right on the edge.

I "trained" my KAT500 when everything was dry, and I run in MAN, so it just recalls the settings when I QSY. This works for the tribander and a GAP Titan vertical. My low band sloping V has a matching section made from window line which is affected when it is wet, so I need to retune. I just tap TUNE on the KAT, hold TUNE on the K3, let it tune, and then tap TUNE again on the K3.

73,

Fred K6DGW
- Northern California Contest Club
- CU in the 50th Running of the Cal QSO Party 3-4 Oct 2015
- www.cqp.org

On 12/5/2014 9:01 AM, George via Elecraft wrote:

Occasionally when operating with the KPA500, I need to retune the  KAT500.
So, I must switch the KPA into Standby, and the retune the  KAT.

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