860.4625 if Ch 10 on the Dayton System...sorry, one typo can really confuse things. Dayton Airport is on the Dayton 800 system. Not sure what you would have heard on 460.4625, but if you are hearing Airport police, you may be picking up some type of harmonics. 854.2125 is now the new Dayton Airport conventional repeater freq (since it was rebanded two months ago). However there is not much traffic on that repeater. It is a back up in the event the Dayton 800 System should ever go down.