Although the KAT500 would like 20 watts to get a good tune it should be able to 
tune down to 10 watts (from an email long ago from Elecraft).  Maybe you can 
try turning the KXPA100 off and setting the KX3 to 10-15 watts (depending on 
the band) and then tune the KAT500.


Cheers,

Fred KE7X


For all KE7X Elecraft books, see www.ke7x.com<http://www.ke7x.com>


________________________________
From: Elecraft <[email protected]> on behalf of Kenneth 
Christiansen <[email protected]>
Sent: Wednesday, January 25, 2017 4:31 PM
To: Kenneth Christiansen
Cc: [email protected]
Subject: Re: [Elecraft] Tuning procedure for KX3, KXPA100 and KAT500?

Thank you to the three people that responded to this so far but each of you 
accused me of having my friend run three tuners in a row. The KX3 turns it's 
tuner off when it senses the KXPA100 is connected and turned on. There is a 
setting in the MENU to turn off the tuner in the KXPA100 which we did and have 
to keep watching as the equipment keeps wanting to turn it back on. The problem 
we are having is tuning the KAT500. Hi SWRs are sent back to the KXPA100 and it 
trips out. I was hoping there is someone out there that is making this work. I 
have a K3S myself and a KAT500 and they work perfectly together at 25 watts for 
tuning than the full 500 watts after it is tuned. My friend does not have a K3S 
so we need to make the KX3 and KXPA100 work.

Thank you

KEN.  W0CZ
[email protected]

Sent from my iPad

> On Jan 25, 2017, at 1:45 PM, Kenneth Christiansen <[email protected]> wrote:
>
> Hi to the group
>
> I have a friend with the following equipment.
> KX3 with built in tuner.
> KXPA100 with built in tuner.
> KPA500
> KAT500
> 50 ft of LMR400 coax
> R9 vertical.
> The KPA500 is not in the circuit at this time.
> We try to tune the KPA500 using the station set for 20 watts and a hand key.
> The KXPA100 often kicks out. The SWR of the KAT500 changes quite a bit over a 
> tuning cycle and I think that is what is causing the trouble.
>
> Is anyone else using this combination of equipment and can give us some guide 
> lines on setting up each piece of equipment and a procedure to tune up the 
> KAT500 without hurting the KXPA100?
>
> Thanks to anyone that can help as this has turned into an expensive problem 
> that has destroyed three pieces of equipment.
>
> Ken.  W0CZ
> [email protected]
>
> Sent from my iPad
> ______________________________________________________________
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