[Elecraft] KX3 power on sequence

[Don Wilhelm]

Ted,

I am not sure what you mean about a "complete power down".  If that 
involves turning off the power supply, then I cannot comment because my 
power supply is turned on 24/7.  I have never seen that situation.  My 
KX3 turns on the KXPA100, no intervention required.

Based on my experience, I would think that turning on the power supply 
first, then powering the KXPA100 and lastly the KX3 might prevent the 
problem.  In other words, if the KXPA100 is not powered on first, the 
KX3 will not recognize it when powered on, and may turn the PA Mode 
parameter to OFF.

As I said, I never touch the KXPA100, it turns on/off with the power to 
the KX3.

I have no answer on your PX3 question.

73,
Don W3FPR

On 3/1/2016 6:23 PM, Dauer, Edward wrote:
> 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.
>
>