The penetration of radio waves through solid volumes such as the ground is very low (high absorption of the waves by the ground) →Quick loss of signal in these situations
•When direct line of sight between the drone and the pilot cannot be assured, using the range extender is required to enable placement of the antenna in direct line of sight with the drone and maintain communication.
•The range extender is passive (only places the antenna within line of sight, does not amplify signal)
- Typical use cases:Sewers: Antenna placed down the manhole
- Chimney: Antenna placed inside the chimney
- Tank: Antenna placed in the tank