Best Posts in Thread: Is it all hot air?

Not safe to use a satellite when the war Mongers that put them there have ears like an African Elephant.
(Transponder) is a device for receiving a radio signal and automatically transmitting a different signal. They are at the point where the communication's are deep with code and near undetectable in low frequency. This is required for Nuclear Submarines or naval advantage. Radio silence at close quarters has major dis-advantages. Hence Balloons.