I'm pretty sure that I am measuring the ring to ground for ACC2. The amp is not connected. Is there a menu setting I could have wrong? If not is the keyline output transistor bad? How do I diagnose the problem in the KX3?
Steve N9SZ Steve, Are you sure you're looking at the ACC2 ring contact? Ring is KEY OUT; tip is GPIO, a \ logic signal configurable in the ACC2 IO Menu entry. Wayne N6KR On Sat, Nov 21, 2020 at 4:12 PM Steve Zabarnick <[email protected]> wrote: > I'm exploring using my KX3 with the QRP-Labs 50W Amplifier. In measuring > the keyline output, I get zero volts to ground when in receive and about > 0.5 volts in transmit. When measuring resistance across the keyline I get > about 70 ohms in receive and 5K ohms in transmit. > > Isn't the keyline supposed to be open in receive and grounded in transmit? > > Steve N9SZ > ______________________________________________________________ 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 Message delivered to [email protected]

