[Elecraft] KPA500/K3 auxbus

[Gary Gregory]

Hi Ian,

Yep that's it. Numerous emails to elecraft have not got me a fix for this
either. Pretty annoying problem and a lack of effort by the factory to find
what is causing the issue.

I know to 'fix' the problem each time, when the kpa500 is powered on,
switch between oper/stby causes the issue to be resolved which is fine
except that it is not the way the K-Line was meant to operate.

regards

On 10 August 2013 01:17, iain macdonnell - N6ML <ar at dseven.org> wrote:

> On Fri, Aug 9, 2013 at 7:47 AM, Gary Gregory <vk1zzgary at gmail.com> wrote:
> > Tried several times to get a fix for inconsistent power up issues.
> >
> > KPA500 power on set to OPERATE
> > K3 set to 27w
> >
> > Turning on the kpa500 results in the K3 display showing ON (not operate)
> > and the K3 stays at 100w output.
> > I have asked elecraft for advice but no advice so far after several
> weeks.
> >
> > I have checked the obvious things such as the auxbus cables and pins etc.
> > Swapped them around but no change.
> >
> > Anyone else seen this?
>
> Yes, I have seen it, and reported it. IIRC, it seemed that there is an
> "ON" message followed immediately by an "OPER" message, and sometimes
> the latter gets dropped. When it fails, there's only one "beep" from
> the K3. I never found a solution.
>
> I've since changed my (remote) setup so that the KPA500 has its 220V
> supply cut off by a relay that hangs off the K3's 12v ACC, so it gets
> a hard power-on when the K3 is powered on, and I no longer have the
> problem. At least I think that's the only change I made...
>
> 73,
>
>     ~iain / N6ML
>



-- 
*Gary - VK1ZZ
Skype: Gary.VK1ZZ
http://www.qsl.net/vk1zz
Motorhome Portable
The Shack*
*Elecraft K3
P3 Panadapter
KPA500FT
KAT500FT**

*