The "official" SteppIR cable schematic also shows that Pin 3 (TXD out on the K3S's RD232 DE9) is also to be connected.
https://groups.io/g/steppir/files/Controller%20Cable%20Schematics/S-26_21-6026-01%20Cable,%209%20pin%20FM%20to%20Male%202%203%205.pdf Is that connection needed? If it is connected, might it obviate the need for a separate CAT program? 73, Lou, W0FK ANDY DURBIN wrote > "The Y cable is connected to the SDA 100 Data IN, radio port, points 2 > (RXD) and 5 (ground)" > > You also need to link 7 and 9 on the SDA 100 connector. Pin assignments > on the SDA 100 connector are not typical RS-232. > > "PINOUT of 9 pin SUBD DATA IN CONNECTOR > 1. Data out RXD > 2. RXD to RS232 Radio TXD > 3. TXD to Radio RXD > 4. TTL Kenwood and active high for Radio CTS > 5. Signal Ground > 6. > 7. TTL version of pin 2 > 8. NC > 9. TTL RXD for Steppir." > > Andy, k3wyc -- Sent from: http://elecraft.365791.n2.nabble.com/ ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com