Phil,
I can't supply specific track frequencies, because like you, I don't
know them. But I do know that several companies, including Radio Shack,
have sold hand held scanners which advertised the race track
frequencies pre-programmed into one of the memory banks.
I don't keep up with the scanner market, but I'm guessing that Uniden,
or some other company still sells such a unit.
--
Mike Duke, K5XU