You were quite clear, at least to me. The answer is YES. The normal setup is the K3 AUX goes to the XCVR jack on the KAT500. It gets frequency info. *If* you have a KPA500, another such cable connects from the KAT500 to it. If you don't have a KPA500, that connector is empty. Does that answer your original question?

I don't know about the pussyfooting. [:-)

73,

Fred K6DGW
- Sparks NV DM09dn

- Northern California Contest Club
- CU in the Cal QSO Party 7-8 Oct 2017
- www.cqp.org

On 12/17/2016 4:43 PM, George Kidder wrote:
I seem not to have made myself very clear.  Let's leave the amp (both
the AL-80A and the KPS500 out of consideration - I can deal with those
later.  My question is - can one use a _E850463 Aux cable_ to transfer
band, frequency etc. information directly from the K3 to the KAT500,
with no amplifier involved?  I know one can make use of the RCA cables
to control the keying, and the amplifier will detect frequency,
presumably from anything down to a Heath AT-1 (if anyone remembers what
that was.)  This is not the question.  When controlled through the Aux
cable, there are a number of useful functions available (along with
keying control) which I would expect might be available if the Aux cable
connected the K3 and the KAT3 directly.

The KAT500 manual pussy-foots around this issue - there are hints that
it might work, but no definitive statement.

Has anyone tried this method?  With what results?  Dick's response seems
to indicate that it won't work.

George, W3HBM

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