tuner is a simple tuner app for Linux; look for "tuner" under downloads. Currently it should work with most of the older Uniden models like the BC895XLT, BC245XTL, and BC780XLT. I have no idea of compatibility with various distros. The app uses GTK for graphics. You need to know the serial device to which your radio is attached. For Linux machines, this will usually be:
I haven't tried BSD yet but it should work. Send an email if you'd like to try. Mac OS/X and *BSD serial ports would usually be:
I'll add support for newer Uniden models (including '396 and '996) and most PC controlled Icom PC/R models when time permits.