3 ms·
Some of the growth is due to the rise of drone communications. In drone racing you are supposed to have a HAM license to operate your video transmitter on certa
by joshmlewis 6y ago
Some of the growth is due to the rise of drone communications. In drone racing you are supposed to have a HAM license to operate your video transmitter on certain frequencies and powers. I'd bet a good chunk of the growth is from that.