[Elecraft] KPA500/K3 auxbus

[Eric Swartz WA6HHQ - Elecraft]

Gary,

Our support engineers have been trying to reach you with no luck. Could your system be blocking them with a spam filter?

We never ignore received support emails. 

David emailed you again today, did you receive it?

73,

Eric
elecraft.com
_..._



On Aug 9, 2013, at 12:07 PM, Gary Gregory <vk1zzgary at gmail.com> wrote:

> 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
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> 
> *
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