RE: Secure channels for RC planes
I hate to break the news to some of you but these are toys. Out of control planes (radio shoot downs) rarely hit anybody and it's not the holy safety issue that Chicken Little would have you believe. It is about money and the major manufacturers would surely develop expensive spread spectrum tecnology if they couldn't sell cheaper ppm and pcm radios. The main driving force that will cause people to buy SS radios when they finally become available will be to not lose their investment and safety will be a secondary consideration. The tone encoded squelch used on $50 a pair walky-talkies would't stop the signal noise you experiance in a shootdown.