[Elecraft] KPA500 RS232 Question

[Don Wilhelm]

Fred,

You do not need a separate serial cable, but you must plug the serial 
adapter into the KPA500 instead of the K3/P3 combination to download 
firmware to the KPA500.

Connect your serial cable directly to the KPA500 and then do the update, 
then connect the cable back on the P3 and do the K3 update. If you have 
the KAT500, connect its serial cable to the computer and do its firmware 
update.  When all have been updated, all should be well.

73,
Don W3FPR

On 2/17/2014 7:34 PM, Fred Jensen wrote:
> I've never connected a serial cable to the KPA500, I built it and used 
> whatever Elecraft had loaded.  I'd like to update the FW now.  The 
> current cabling is:
>
> PC --> PigKnob gizmo --> P3 --> K3 and it all works fine.  The KAT500 
> serial connection is a separate adapter ... a little annoying but I 
> can live with it.
>
> Can I do:
>
> PC --> PigKnob gizmo --> P3 --> KPA500 --> K3 or do I need a separate 
> USB adapter for the KPA500?
>
> I'd just go try it out except the backside of my radio isn't real 
> accessible and gives totally new meaning to the term "wireless" so I 
> thought I'd ask first.
>