Yes, I was referring to the scanner frequencies.
It was suggested earlier in this thread that you listen to the starter(s) to determine who is running next. I did that the last time I went and it was helpful.
A person can always scan some of the logical frequencies and find the official frequencies, but I thought it would be easier if someone knew them.
When I volunteer as a corner worker at our vintage sports car races, they are very public with their frequencies. It really keeps everyone informed.
Jim