Attaching this antenna booster will increase the range distance significantly. The reflector on the transmitter will collect a huge amount of signal from the drone; thus, it can receive a much weaker signal compared to the transmitter without the reflector, and as a result, the reception distance will increase.

Similarly, when transmitting, the majority of signals are directed towards the drone; as a result, the drone will receive a stronger signal, thus increasing the distance range.

Antenna Range Booster for DJI Phantom 3, 4, and Inspire 1, 2