I can't be sure if you read http://forum.parrot.com/ardrone/en/viewtopic.php?id=7170 where folk get about a 1 mile range. Isn't that enough?
Bob
Hi i am trying to increase my wifi signal strenght through the micro usb port for plug and play on a android tablet this needs to be fixed with hardware not apps as they are mostly crap.
I have done a lot of internet research all i have been able to find is external routers/modems.
The reason for this is to increase range of signal to improve range on Parrot Ar Drone.
Any help would be great cheers...

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic