"starman" wrote in message
...

Have you ever used a digital receiver with a tuning knob? The better
ones all have a knob in addition to the keypad.


I think there's more to it than the type of knob. I think it may be seeing
the actual tuning scales. Our minds probably function more as a super analog
computer, and analog things are easier to see and judge. Same as with
digital watches vs those with hands, I guess. We can see numbers on a
digital display, but we can't see the pattern they fit in.
Pierre