Hi, Yesterday, I was building my KX1, and I was at the "test phase and alignment part 2". I tough that I was something wrong with my keyer.... But hopefully I found this message on the reflector.... I forgot to read the errata that came with the KX1 telling exactly this strange behavior. Ouf !!! ;-) Everything is OK.... I copied CW last night on this little rig !!!!
So people.... Be sure to READ all manual errata that come with your kit before building... ;-) [...] I just reproduced the problem you described below. It's actually even more complicated: it only happens when STP=700 *and* the LED brightness and sidetone pitch are both set above certain levels. This is a firmware problem related to how the KX1's microcontroller multiplexes the LED. The workaround in all cases is to set STP no higher than 690 Hz, as you have discovered. I'll add a note to the manual errata sheet, and we'll correct the problem in a future firmware revision. [...] J-F / VA2VYZ K2 #4130 / KX1 #999 _______________________________________________ Elecraft mailing list Post to: Elecraft@mailman.qth.net 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