Sounds like you're missing a bypass capacitor on the serial I/O line. If you email customer support, they'll send you instructions on how to fix this. (Affects a small number of units.)
73, Wayne N6KR On Feb 8, 2014, at 4:26 PM, [email protected] wrote: > Hi I was wondering if anyone else has this issue: > > I have the KX3 and the KXPA100 connected through the wiring kit and I am > connecting to the combo with Ham Radio Deluxe or Win4K3Suite. If I go to 17m, > and the software is running I can literally hear the serial commands in my > headphones. It sounds like tons of clicks, and chirping noises on 17M only. I > also hear it on 12m but much quieter.It also shows up on the s-meter as an > s-5 pulsing. If I turn off the KXPA100, the noise goes away. > I have tried a different serial port cable connected to a different port and > there is no difference. > > > It is definitely coming from the KXPA100. I never had this before I installed > the amp. > > > > > Can anyone here confirm to me if this is just my setup or are other > experiencing the same issues? > Thanks, Tom va2fsq > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[email protected] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
