Namuna, those numbers are from a car point of view.

What about the controller for a booster car.
Is the booster button just another sub-frequency?

27MHz as a base with (for example)

27.200 = forward
27.201 = reverse
27.202 = Left
27.203 = Right
27.204 = Boost.

A non-booster controller would not transmit the last signal.

-Nox