Been flying R/C since 1960....always wanted to use a tv camera, but the technology just wasn't up to it....then big planes came along.$$$$$$$ I am collecting parts for a redo, though...500mw on 900 Mhz is probably the best video downlink(250 bucks+ monitor glasses, another $250), I use 50 Mhz (ham) for the control link (up)freq....the video shown was not from the same camera the pilot uses....they haul along a go-pro for that....