[Elecraft] K3 , KPA500, KPA500 interaction.

[Irwin Darack]

Andy & Ken,

What is your experience here?

Irwin

On Saturday, March 16, 2013, Dick Dievendorff wrote:

> As others have said, the mechanism the KAT500 uses to inhibit the
> amplifier is the amplifier key line, sometimes labeled PTT. The KAT500
> manual shows cabling diagrams that cause the K3 key line to go thru a relay
> in the KAT50o to the amp.  The amp doesn't change to standby, it is simply
> not keyed and therefore does not amplify during ATU tuning operations.
>
> 73 de Dick, K6KR
>
> On Mar 16, 2013, at 6:17 PM, Bill Wiehe <bw396ss at yahoo.com <javascript:;>>
> wrote:
>
> >
> >
> > As a follow up the recent information passed along on the subject under
> another thread (* on KPA500) I am looking for some additional
> clarification. I was under the impression that
> > KPA500 would go into standby automatically when the KAT500 went into a
> tune mode.
> > Apparently this is not the case unless I have something set wrong. I
> have found
> > when changing bands if I initiate the K3 “tune cycle” the KPA500 will
> not go into
> > standby.The KPA500 goes in and out of transmit mode and eventually will
> go into a "soft fault" if there is an initially high (SWR) while the KAT500
> continues to look for a match. The fault due to high reflected power of
> course is as it should be and must be cleared to proceed. Just curious but
> is this correct expectation or is there a
> > set up function I missed that automatically places the KPA500 in standby
>  when the   As I said I was under the impression that whenever
> > the KAT500 did a tune the KAP500 would go into standby.
> > This is not a major problem as I have set up the KPA500 now
> > to go to standby whenever I change bands as well as initial start-up. I
> am still curious however if I missed something.
> > Thanks
> >
> > Bill – W0BBI
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-- 
Irwin KD3TB