Rules Update (5/2019) Starting this Friday, May 31 we are going to use raceceivers for all classes. This will be a RECOMMENDED use for the remainder of 2019 and will become MANDATORY in 2020. So if you do have a raceceiver or scanner, we ask that you PLEASE USE IT. The frequency will be 454.000MHz. If you don’t have one at the time, please tell the staff at sign in so we know you don’t have one for evening.