This is a nice video of a 14 min flight from Kowloon all the way across Hong Kong. Very well prepared, spotters along the way, NAZA-M (with groundstation I presume).
The comments with the video are most educational.
https://www.youtube.com/watch?v=bvVu3qfADgw&feature=youtu.be
EDIT
Actually, they used multiple pilots and kept LOS all the time, so no ground station.
The comments with the video are most educational.
https://www.youtube.com/watch?v=bvVu3qfADgw&feature=youtu.be
EDIT
Actually, they used multiple pilots and kept LOS all the time, so no ground station.
