Im pretty sure the control amd video feeds for my drone is switchable between 2..4ghz and 5.8ghz.. Range of 7km with uprated antennas, and its just an old dji phantom. Nothing fancy. Instantly doesnt give a shit about this tank tech.
Honestly, I never tested that distance. I reached about 5km piloting from a hill, with a clear line of sight, video (on 2.4ghz) and the control (on 5.7ghz) with good signal still for both feeds.