Hi! I'm new to the scanner world. How do I listen to the Fairfax County Police frequency 808.6375? My scanner, ICOM IC-R10 only has three digits after the 808. Even with the smallest tuning step set to 5.0, I can only tune to 808.630, 808.635, 808.640....... Or is there an alternative for the county police band? Thanks for your help! Bob