FYI, I have my K3 always connected to my Windows 10 PC and never had any trouble with COM port assignments.
Dave K7DRT -----Original Message----- From: elecraft-boun...@mailman.qth.net <elecraft-boun...@mailman.qth.net> On Behalf Of Jim KO5V Sent: Thursday, April 10, 2025 10:40 AM To: elecraft list <elecraft@mailman.qth.net> Subject: Re: [Elecraft] K2 interface to Win10 PC Norm, I use my K2 with N3FJP's Amateur Contact Log. First with WIn10, and now with a Win 11 machine. The biggest headache for me was random COM port reassignment. After an update, sometimes the system would change or just eliminate an existing COM port. This happened a lot with Win 10 in the early days, but it got better towards the end of the OS's life. It still occasionally happens with a WIN 11 update. I built my own "serial-like" cable for the K2, using Elecraft's special wiring, and I use a USB to serial adapter for the computer. The first adapter I bought had a crap chipset in it and it wouldn't work. I bought a second, more expensive one with a "verified" FDTI chipset. The computer saw it immediately, installed a driver, and it works just fine. And as previously mentioned, check the baud rate. It took me a bit to sort it all out. Good luck. 73, Jim KO5V ______________________________________________________________ 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 radiodav...@earthlink.net ______________________________________________________________ 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