Have no experience with a Home Patrol scanner, but the Nascar frequencies are all conventional simplex analog frequencies. If there is a way to load conventional frequencies, that would be it. Go to Speedway Digest, they usually have the frequencies. Now the bad news, unless you are At the track it is very unlikely you will hear anything. When camping at the Nascar races here in Texas, I rarely get a signal from the cars on the track to the campgrounds.