KPA500 question

[GARY-2]

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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[Iain MacDonnell - N6ML-2]

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 <[hidden email]> 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
>
>
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html

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