I use a futaba car radio transmitter that came in RealRaceG2. the transmitter works OK. Problem is realrace doesn't work at all on my computer[:@][:@][:@]. Just spent over an hour on the phone with RealRace customer support and they have authorized a return OK. So now I have to buy some kind of car transmitter to use with VRC. I haven't bought any more tracks yet. I just do the free practice. It works real good. I think Greg posted where to find it.
Ron