Dear Guys, Again, I have some problems with the usb driver from usb cable. So, I'm trying to connect another k3 with a computer with the usb cable from elecraft (usb serial - A9015k5v). I already downloaded the drivers from ftdi page and nothing!! So, I've the k3 with macbookAir and RumLog. Please, someone can help me? Best Regards Ric PY2PT