Estone GPS Drones APM 2.6 Ublox NEO GPS-6M+HMC5883L Compass Module ARDUPILOT MEGA 2.6 Only sold by Heroneo.Photo taken by Heroneo. 100% Brand new and high quality Place the module on the outside of your vehicle (in an elevated position if appropriate) with a clear view of the sky, as far as possible from the motors and ESCs, with the arrow facing forward. Distance the module from DC power wiring and the batteries by at least several inches. Place the module clear of nearby iron containing metallic objects. (Use nylon or non magnetic stainless steel hardware and nylon or aluminum standoffs to mount the module). Twist power and ground wires where possible.