Hitec Transmitter compatible with what receivers?

Originally Posted by MetalMan

You can use Novak receivers (specified for Hitec) and Hitec receivers (specified for Hitec). There may be some other brands, but basically they need to say that they are for Hitec so that they match the positive/negative shift thing.

This is what I was wondering about, does anyone know if Hitec uses the same positive/ negative shift as say Futaba or Airtronics?
My problem is I only have one decent transmitter and receiver between my Emaxx, TC3, and Evader. I have a Lynx FM and a novak xxl right now. I want to at least be able to use the Lynx with the Emaxx, but I think Im going to want a better transmitter soon, so it makes more sense right now to get a new radio system, and an extra receiver, so Ill have a total of 3 FM receivers for my 3 cars. But the best radios in my price range now seem to be Airtronics (MX3) and Futaba (I forget the model name, their cheapest FM computer radio), so I dont know if theyll be able to work with whatever new radio I end up with.