Did you do a wiki search on rr.com for Nascar? Just copy the frequencies into a list you create in the Uniden supplied free program. IMHOP it is more awkward than using ARC Patrol, that is why I use the inexpensive Butel software. Yes, you have to pay Butel but compared to the cost of the HP scanner the program cost is trivial. [I also value my time as I am a professional, goo luck].