I've seen a number of aftermarket devices that attach to the remote that are supposed to extend the RF range between the remote and the copter and they all appear to be a kind of linear parabolic reflector that goes behind the antennae of the remote. Now, in principle it seems like a parabolic reflector thingy could increase the range some but I wonder if anyone here has used them and can comment on the difference in range when using them. I'm not sure I'd ever need them but wanted to know just in case.
http://g03.a.alicdn.com/kf/HTB1B.bQ...board-font-b-remote-b-font-font-b-control.jpg
Brian
http://g03.a.alicdn.com/kf/HTB1B.bQ...board-font-b-remote-b-font-font-b-control.jpg
Brian