title_body: What technology offers the longest range for RC controls? After watching a video demonstrating a jet-powered RC aircraft, I started to wonder about the maximum range available with modern RC equipment.
  
  What is the maximum range currently available, and which technology does it implement?
  
  On which frequencies does it operate?
  
  If you have any data regarding the control-response lag (delay), please include it too.
  
  I'm more interested in controller-based distances, and not FPV.
upvoted_answer: If you are not interested in hard, real-time control and can accept some autonomy in the drone, then your best choice is satellite communication. The iridium based modules are lightweight, (45 grams), and are easy to integrate (they have USB and Serial connections). One example is RockBlock. You pay per message, and one message (50 bytes) is just about enough to send coordinates of the next way-point and to get status information from the drone.
  
  EDIT:
  In response to the comment about LEO: if your drone is about to go further than low-earth orbit, take a look at this S-Band transceiver. Perfect choice at 194 grams. However, you will need to build your own tracking station, but then even the sky is no longer the limit.