[Elecraft] K3/KPA500/KAT500 revs 4.83/1.38/1.58

[Cady, Fred]

Check the KAT500 configuration Initial Power screen to see if Power On When DC Power Applied is checked.
Fred KE7X

-----Original Message-----
From: elecraft-bounces at mailman.qth.net [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of bill conkling
Sent: Friday, February 21, 2014 7:47 PM
To: Jack Brindle
Cc: elecraft
Subject: Re: [Elecraft] K3/KPA500/KAT500 revs 4.83/1.38/1.58

It's plugged into the same PS as the K3.

...bill

Sent from my Verizon Wireless 4G LTE DROID

Jack Brindle <jackbrindle at me.com> wrote:

>You might want to say how you have the KAT powered. In my station I have a relay-switch power panel that I built. The relay is powered by the K3’s 12V output jack. When the K3 turns on, it powers the relay, which the switches 12V power to the various station boxes, including the KAT500. By the time the K3 is ready to talk to the KAT, it is awake and listening, as is the KRC2, P3, etc...
>
>
>Jack B, W6FB
>
>
>On Feb 21, 2014, at 5:44 PM, bill conkling <nr4c at widomaker.com> wrote:
>
>
>Sounds great but most of the time my KAT500 won't turn on until I turn on the K3.
>
>
>What now?
>
>
>...bill nr4c
>
>
>Sent from my Verizon Wireless 4G LTE DROID
>
>
>
>Jack Brindle <jackbrindle at me.com> wrote:
>
>The KAT500 needs to be powered on whenever the K3 is on in order to avoid loading the Auxbus. It can be powered up at the same time, but must be on before the K3 completes its initialization.
>
>The KPA500 has no restriction, and can be powered on any time before or after the K3 is turned on.
>
>Jack Brindle, W6FB
>
>On Feb 21, 2014, at 2:23 AM, Stephen Prior <eastbrantwood at gmail.com> wrote:
>
>> Chuck,
>> 
>> I seem to remember reading that the order of turning on the K-line is 
>> important.  I always turn on the KAT500, then the KPA500 followed by 
>> the K3/P3.  I have not had any issues doing things in that order.  
>> Maybe this is why you had the 'problem'?
>> 
>> 73 Stephen G4SJP
>> 
>> 
>> On 21 February 2014 10:19, ke9uw <c-hawley at illinois.edu> wrote:
>> 
>>> Oh yes, I remember now yesterday I got a soft fault on the KPA500. I 
>>> turned on the K3, the KAT500 went to the pretuned setting on 40M and 
>>> then I turned on the KPA500 and clicked it into operate.
>>> I said one word and the KPA500 went to standby. No red lights. I 
>>> returned it to operate and everything worked well. Forgot about 
>>> that...not a problem, but don't know why it did that.
>>> 
>>> 
>>> 
>>> -----
>>> Chuck, KE9UW
>>> --
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