For those with Fat Finger Syndrome and who lack the eye hand coordination to use a Mouse to tune a SDR on a Computer Screen -- there is a cure and that not unlike hemorrhoid creme -- cools things down and makes life good again.
This is a prototype from https://www.mostlydiyrf.com up there in the Silicon Forest and the brainchild of Todd, K7TFC. My only role is being the Alpha tester and suffering from FFS. I am solely a Alpha tester and what I have seen so far is impressive. It works with Linux based or Windows based software SDR suites. The video shows that capability.
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I have no technical info on the black box with a knob so direct your inquiries to K7TFC.
Shalom.
Pete