I think that the internal antenna and low TX power = low range
Power AP N
Antennas: 2 External Dual Omni
TX Power: Up to 1000 mW
Antenna Gain: 6 dBi
As long as you do not deal with "broadcast" stations (such as normal broadcast radio stations or TV) you are always better off trying to match your receiver sensitivity with the TX output power from your AP (that can both receive and transmit signals). The more power you muscle out of your AP the less sensitivity you will have on your receiver of the AP. Sure, there are filters built in, but physical laws still apply.
Im _ALL_ for having a good solid "base-station", such as the AP. But if I were to gain more coverage I would focus my attention on making a better antenna for WIFI on the drone it self.
What I am trying to say is that up the power to 1W (on 2.4Ghz) is normally not a great idea on customer electronics such the AP used because they are normally not made for power levels over 200mW (sure, country dependent here).
To sum up, the drone will hear your AP PERFECTLY (due to the increased output power of the AP) but will the AP still hear and receive packets from the Drone (that still has got the same output power and lousy antenna?).
Please note that its a _TWO_ way communication with no ACKs(?) (use of UDP).
- High output power on AP causes the AP to have less receiving capabilities.
- High output power on AP causes the drone to hear AP very good. But does the AP hear the drone as good? Most likely no.
But hey, no question about it. Having a good "base station" such an AP will _GREATLY_ enhance the range of the drone!
73Â´s de SM4XDJ