Thanks Bill. My point about the tx inhibit was that I plan to have a "manual selection" button, and I was thinking that maybe it would be nice to have a "fool avoidance" built in. The fool being me, of course.
Pf >>>>> "Bill" == Bill Frantz <[email protected]> writes: Bill> I have built a similar switch controller. If anyone wants a copy of the details, please ask. Bill> Specifically: Bill> - Just connect te band lines directly to the Arduino inputs. It works fine. Bill> - Don't know about cross band split. However K 3 power off and 60M look the same. Bill> - I don't bother. I don't change bands while transmitting. I'm not sure if the K3 even supports it. Bill> 73 Bill AE6JV Bill> 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> ----------------------------------------------------------------------- Bill> Bill Frantz | I don't have high-speed | Periwinkle Bill> (408)356-8506 | internet. I have DSL. | 16345 Englewood Ave Bill> www.pwpconsult.com | | Los Gatos, CA 95032 -- Pierfrancesco Caci, ik5pvx ______________________________________________________________ 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]
