[Elecraft] KPA500 question

[iain macdonnell - N6ML]

HI Gary,

This was discussed recently. See:

http://elecraft.365791.n2.nabble.com/macro-to-control-KPA500-td7240517.html#a7243817

73,

    ~iain / N6ML



On Sat, Feb 11, 2012 at 5:58 PM, Gary <n6lrv at cox.net> wrote:
> I have a question for the KPA500 owners:
>
> I've been reading through the manuals and exchanging some emails with
> Elecraft support over whether or not a directly connected KPA500 amp can be
> turned ON/OFF in concert with the K3 it's connected to. It appears this
> capability doesn't exist however looking through the available I/O I've come
> up with the following idea;
>
> I see a provision in the KPA500 for a pulsed low input at the KPA's AUX
> connector pin 8 to turn the amp ON or OFF. For those not using transverters
> could a K3 menu option be added to pulse low the K3's ACC connector pin 7
> (K3 ON) for KPA500 control? If I add a KPA500 to my K3/P3 station I would
> like to be able to turn all ON/OFF using only the K3's power switch. I
> realize the KPAUX cable set may not support this idea but aside from that
> can it work? I'm mostly concerned about the turn OFF command and whether or
> not it can be made to function as I suggested while the radio is in the
> process of shutting itself down. If this does work then perhaps we can
> persuade Wayne to add the option into a future K3 firmware upgrade.
>
> 73,
> Gary
>
> N6LRV
>
>
>
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