hello im very new on the rf systems and i would like advise. i want to make a control with range 1000meters how is that posible? would something like this work? http://www.ebay.com/itm/141196902303?_trksid=p2060778.m2749.l2649&ssPageName=STRK:MEBIDX:IT and also can i control with the same controller 2 or 3 devices at 1000meter range? thank you!