My research group is using UBNT Rocket M5 on UAVs, to implement communication among UAVs, and between UAV and ground station.
We tested and the range of Wi-Fi can reach about 1 km! (UAVs are flying 100m above clear ground area.) I want to know how could this device realize such long distance communication.
The data sheet shows that this device has 27 dBm Tx-power. UAVs are using 5 dBi antenna, and the ground station is using a huge 17 dBi antenna. So, does any wireless router with 27 dBm Tx-power, equipped with proper antenna, can do such a long-range communication?
I ask this question because the PCB board of UBNT Rocket M5 is a little bit large for our UAV so I'm looking for some alternative to it.