Originally Posted by Jaynen
and a standard 2.4 radio before you need to start looking at your long range options like Dragon Link or whatever?
I recently ground tested my standard Futaba radio out to 1.5km. I would have went further but I ran out of road. Keep in mind this is a ground test with the radio TX at hip level and the RX inside my car on the dash. I wanted to get an idea of a poor radio setup. I recently bought a FrSky setup. Once it arrives I'll give that a test. Some folks are reporting 2-3km before the RSSI beeper goes crazy.
The other thing you can do is put the radio in range test. Then move away until the system loses link. You then measure that distance and do the math.