Re: [K2] Remote KPA100 Bias Current Adjustment

Posted by Don Wilhelm-4 on May 11, 2011; 4:42am
URL: http://elecraft.85.s1.nabble.com/K2-Remote-KPA100-Bias-Current-Adjustment-tp6350558p6350574.html

  Brian,

If the PA idling current was adjusted to 400 ma (increase over RX
current), then the KPA100 bias should be correct whether operated in the
base K2 enclosure or in a remote enclosure.

In other words, it should make no difference whether it is mounted on
the base K2 or in an external enclosure.  If you want to do a double
check just to be certain, then by all means do it.  The current during
the test (CW Test mode - which produces no RF, and TUNE) should increase
the current draw by 400 ma over the receive current draw.  The Receive
current draw by the KPA100 will be much smaller with the KPA100 mounted
remotely.

73,
Don W3FPR

On 5/11/2011 12:25 AM, Brian - N5BCN wrote:

> Hi all,
>
> I recently completed a KPA100 and initially did the testing in my K2 as a
> K2/100.
>
> The ultimate goal, however, was to remote it in a EC2 enclosure with a
> KAT100-2.  The KPA100 is now successfully integrated with the KAT100-2.
>
> The question: should I redo the bias current adjustment now since the
> original adjustment was made in the K2 and now it's in the KAT100-2?
>
> 73
>
>

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