I have built a similar switch controller. If anyone wants a copy of the details, please ask.
Specifically: - Just connect te band lines directly to the Arduino inputs. It works fine. - Don't know about cross band split. However K 3 power off and 60M look the same. - I don't bother. I don't change bands while transmitting. I'm not sure if the K3 even supports it. 73 Bill AE6JV On 2/7/16 at 3:38 AM, [email protected] (Pierfrancesco Caci) wrote: > Hello, > I'm trying to make my own interface between the band data lines on the > accessory connector of the K3 and the remote antenna switch. > I have a few questions that I hope you can help me with: > > - is it safe to just poll the band lines with the arduino digital input > pins? I understand that my K3 is new enough to have the internal pull > up resistor. Should I put an isolation device inbetween? > > - does the band data as provided by the K3 always track the TX VFO? > Should I expect some weird situation if I ever try to do cross-band > split? > > - should I bother with asserting TX Inhibit and keep it set for a few > milliseconds when I detect a band switch? ----------------------------------------------------------------------- Bill Frantz | I don't have high-speed | Periwinkle (408)356-8506 | internet. I have DSL. | 16345 Englewood Ave www.pwpconsult.com | | Los Gatos, CA 95032 ______________________________________________________________ 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]
