In this video we explain about the newer RACE band that we've started to see on some of the FPV receivers. This is a new way to sue the available FPV frequencies to allow up to eight pilots to fly safely and not create problems for the clear FPV reception of the other pilots in the race.
You should be able to pick up the race bands using an existing 32 channel receiver and selecting the closest frequency to the one being transmitted by the RACE band transmitter.
You can see the list of FPV frequencies including RACEBAND by using this link - hhttps://www.dropbox.com/s/mmvcztmhdwuxuz5/FPV%20Frequencies%20with%20RaceBand.pdf?dl=0
Happy flying!