[Elecraft] Additional info: KPA problem on 6M

[Carl Yaffey]

Additional info: On 6M only, tapping the key in CW mode, I get a quick indication of 3:1 on the KAT500 about 1 out of 4 taps.

> Jack, I finally have some good data on my problem whereby I can’t get full output from the KPA500 on 6M.
> As you might remember, as I raise the drive and get beyond about 200 watts out, I get  a HI SWR fault.
> I’m sure now that it’s a K3S problem. Someone on the Elecraft list suggested that the K3S might be generating a spurious frequency that would confuse the KPA. To test this, I brought over an ICOM IC-706MKIIG and hooked it to the KPA. No problem at all getting full power out!
> Additionally, the KAT500 tunes the beam to 1:1 with the ICOM driving the KPA.
> With the K3S connected, the KAT500 tunes to about 1:8:1. 
> The KAT500 should not operate any differently with different driving rigs.
> I’ve tried different jumpers between the K3S and the KPA with no difference.

Carl Yaffey  K8NU
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