What does the "all" vs "All" setting do on the dedicated searches for CB, Marine, and F/G/MURS on the Pro-106? The setting doesn't appear for Railroad, Public Safety, Aircraft, or Ham.
It controls whether or not "locked out" frequencies in the channel-based searches (CB, Marine, F/G/MURS) are scanned. If it says "ALL", the locked-out frequencies are checked; if it says "all", they're not.