[Elecraft] KPA500 and/or KAT500 problem?

[David Withers]

Same problem plus terrible audio.  Fighting it for days and have given up.

Sent from my Verizon Wireless 4G LTE DROID

"Poul Erik Karlshøj (PKA)" <PKA at telepost.gl> wrote:

>Just had a problem on the KPA+KAT setup while working on 80m last night. It worked without any problems until that moment, so I'm confident something really did change.
>I have contacted Elecraft support, but it occurs to me that someone in this forum might have had a similar experience and may know what has gone wrong.
>
>On a D.L. either directly on the KPA or via the KAT I have a high SWR on the K3 (ATU in bypass mode) as soon as the KPA is set OPER.
>I need K3 P= 60W to produce 500W into the D.L , but since the K3 SWR is so high I don't know what power is received by the KPA. Before all this I needed 18W to get 500W out on 80m.
>
>With the KPA in STBY the KAT operates normally on both my antennas with K3 at 100W.
>While still on the antenna with KAT having the C and L values found above, as soon as I set KPA = OPER - even with K3 power set to 2W -  I see a very high SWR on both KPA and KAT, while the KPA indicates no current or output power.
>
>I am confused, but probably one single fault can explain this.
>Anyone here knows?
>
>73 de OZ4UN
>Poul-Erik
>
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