[Elecraft] KX3 power on sequence

Dauer, Edward edauer at law.du.edu
Tue Mar 1 18:23:03 EST 2016


I have had similar experiences.  After a complete power down and later
power up, the KX3 does not know the KXPA100 amp is ready even after both
are powered on, which then requires entering the menu and returning the
right PA setting.  Reminiscent of the pre-fix days when turning on a K3
before applying power to the KAT500 would freeze the K3.

Does anyone know if there is a preferred power-up or power-down sequence
for the KX3 / KPA100 / that would avoid having to do that reset?  I think
this came up on the reflector once before but I don¹t recall . . .

On the other question, about the KX3 and the PX3, there is an option in
the PX3 that would bypass its power switch and have it come on as soon as
power is supplied, and a second option that does the same but leaves the
power switch operable so long as the power isn¹t removed.  Requires moving
a jumper -  p.22 of the Manual.

Ted, KN1CBR

>------------------------------
>
>Message: 7
>Date: Mon, 29 Feb 2016 23:03:44 -0500
>From: sancho <sancho at frawg.org>
>To: elecraft at mailman.qth.net
>Subject: Re: [Elecraft] Dead PX3?
>Message-ID: <9F53C522-9ECE-4F43-964B-865F973CBD6E at frawg.org>
>Content-Type: text/plain;	charset=us-ascii
>
>I have experienced similar issues only after a complete power down (KX3,
>PX3, KXPA100, computer, AND power supply). Both the PX3 and the KXPA100
>act like they have a mind of their own. The system slowly rights
>itself... first KXPA100 comes on and cycles with the KX3, then the PX3
>just starts working rando. Once all three are up and talking to each
>other, the system is good until the next time I do a complete power down
>and disconnect the antennas.
>
>Before you ask, I have tried to reseat all cables, I have checked to make
>sure PA is enabled in menu, and I have pushed the power on switch on the
>PX3. I have also switched to different USB dongles (I have 3 Elecraft
>KXUSB units).
>
>My solution is not to completely shut the station down unless I have to
>because of lightning.
>
>Jack KD4IZ
>Sent from my iPad



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