The older Spektrums have an 8 inch antenna. They work much better, even if you just coil it up inside the rx box. I drove mine over 200 yards like that all day long. Spektrum screwed up selling the 2-3 inch antenna equipped versions. Spektrums like a good quality, high power rx pack as well. Also make sure to route the throttle servo wires under the rx. When they are routed over it inside the rx box it causes weird glitching issues.