original_query: What are the antennas on the controller of the DJI Phantom used for?
query: What are the antennas on the controller of the DJI Phantom used for?
answer: The Phantom 3 Professional and Advanced models have controllers with 2 antennas.  The Phantom SE has one antenna for transmitting and one for receiving data using a Lightbridge-like system, and a visible antenna for mobile device communication via wifi.