RE: Spektrum/JR CF receivers?
I agree but they are not just made for Helis, the twigs on these are meant to be routed to the outside of the aircraft via small moulded exits, I've range tested mine and got as far away as 200yds at lower than ground level.
It's only my experience of course. But it is a specifically produced receiver that has to be used with the carbon satelites for use on all carbon aircraft.