I hawk in the midwest where its totally flat. How far should the signal go with no obstructions?
The biggest obstacle to radio waves is the earth itself. The range of a telemetry system is limited first and foremost by the horizon. The curvature of the earth creates a circular area around the transmitter where you can pick up the signal, the so-called line-of-sight radius. The actual radius depends on the elevation of both the transmitter and the receiver.
