Originally Posted by CardinalFJ60
Use the Commander software, it's good. Know that for the VX-6 it's still a bit rough. Also send Jim a few bucks, it's freeware but it cost him time to figure out the protocol and write the code. I use the RT Systems cable, it works. You can make one but the 4-conductor plug wasn't cheap and frankly worth the money for a COTS product.