KAT100: Strange K2/100 Behavior During Tune

Posted by Jonathan Taylor, K1RFD on Sep 16, 2006; 9:20pm
URL: http://elecraft.85.s1.nabble.com/KAT100-Strange-K2-100-Behavior-During-Tune-tp393891.html

I have a K2/100 with a KAT100.  For the most part, all works well as
expected.

Intermittently, though, when I press the TUNE button, the KAT100 will
chatter briefly as if finding a match, and then it suddenly stops and the K2
acts as if its CPU has been re-set; the bargraph and the LCD go blank
briefly, then the ELECrAFt sign-on message appears briefly and finally the
frequency is re-displayed.  During this time, however, the power supply
indications are normal and the LCD backlight remains on.

This problem seems to be frequency-dependent and seems to happen more often
at high power, which leads me to think it is an RF feedback issue.

However, I've noticed that turning the power down to bottom end of the
high-power range (approx 12 W) usually doesn't help, yet turning it slightly
lower than that, to get into the low-power range (approx 10 W), does.

Any advice on how to solve it?

Thanks
 


_______________________________________________
Elecraft mailing list
Post to: [hidden email]
You must be a subscriber to post to the list.
Subscriber Info (Addr. Change, sub, unsub etc.):
 http://mailman.qth.net/mailman/listinfo/elecraft   

Help: http://mailman.qth.net/subscribers.htm
Elecraft web page: http://www.elecraft.com