XRS - Extensible Radio Specification XRS Technology: Interfacing radio with computers.
Ham Radio Tuning Wheel
Ham Radio Wheel Are you nostalgic for the good old times when a tuning knob was a real knob, and you had to twist it, instead of just clicking on its digitized image on a computer screen?

So here it is, a tuning knob which is as close to the real thing as possible. True, it is still a digized image on a screen, but you need to twist it, to tune the receiver.

Left-click on the dimple on the knob first, and it will glow red. Hold the mouse button down, and "twist" the knob. What a feeling!