ORIGINAL: grimbeaver
I'm sorry but what does that prove? I don't think anyone is doubting that the multiple node system works. Just that it doesn't seem like it should be needed. Neither Futaba or Hitec do satellite rx and their systems work just fine.
Actually it proves quite a bit... someone better versed in antenna theory could give you quite an earful too...
You can operate any and all multinode Spektrums WITHOUT the satellite very well if you elect to. They are not "needed". They are an extra measure of safety though.
The multiple nodes permit better reception out to far longer distances. Much longer than what normal RX's can handle.
Try the same thing with a Hitec or a Futaba single node system and see.
And lest you respond with "but we don't fly our planes that far"... remember that this long range test is indicative of better overall sensitivity and multipath image rejection.
Some Futaba's do feature multiple antennas to try to achieve better results and eliminate multipath problems too, but they don't feature a remote AMP and node.
That's why our Jet guys all swear buy JR/Spektrums and throw in as many nodes as possible to elimate any POSSIBLE chance of LOS failure. You don't HAVE to do this, but it's cheap insurance.