I think that Futaba does use diversity receivers. The two wires coming out of the Futaba receiver are actually each separate antennas, not a single dipole. They are each sleeve antennas. Inside the box are two receivers. I think. I might be wrong.
Spectrum just took it a step further by adding remote receivers. Why they felt they needed this while Futaba did not I can only guess.
Last edited by JPMacG; 10-26-2013 at 09:12 AM.
Reason: Original post was too inflamatory