The Radar Kit GUI sometimes has trouble finding devices. The best way to debug this issue is to download a VISA device manager. A good
program to manage VISA compliant devices (like the Radar Kit) is Agilent's
Connection Expert. Most of the time issues can be fixed by simply installing this program. An internet search for "Agilent IO Libraries Suite" should
bring you to a web page to download the program. The program you want to
download is actually called "IO Libraries Suite 16.3". Once you download and
install this program, run Agilent Connection Expert from the programs menu in
windows. After it loads you should see the Radar Kit listed under USB0. If it is not, right click USB0 and click "Refresh this
Interface". If the Radar Kit is found, and has a green check on the icon, it
should now work with the GUI. If it still does not work, please contact customer support (Contact Quonset Microwave).