"Beware, by modifying the antenna, your product could lose its Fcc compliance.
Indeed, if your antenna gain is more than 6dBi you have to back off the power by the same value.
That's for north american fellows."
"Ouch, a fan ? Never ever ever use a fan in a small and dense product with LTE or other radios.
Come on, this is on board of a plane/multirotor, a simple heatsink should be enough given the airspeed that flows in the structures !"
they target the leisure market, they have developed a plug and play platform, fully autonomous (=> "no skill required"). That's their target ! It is great for beginners or people who just want to use the waypoints system with no need to…"