I'm surprised you can't get WSJT-X to work with your 3000. Especially using Windows. I use WSJT-X (1.6) with a Mac and my 3000 and it works flawlessly. I did have to download a Silabs driver and make sure the audio was set at "USB Audio CODEC" for the input/output in WSJT-X Preferences. USB cable from the radio to the computer and that was it.