http://www.wired.com/2015/09/balloon-spy-probe-deep-sweep/
I was thinking about something like this, about 25 years ago. But rather than a free-flying balloon, I felt that an aerostat configuration would be better. Further, I figured that a bidirectional optical fiber link would be useful, such as: http://datainterfaces.com/sfp-modules-single-strand-bidirectional-gigabit-SC.aspx?gclid=CjwKEAjw-IOwBRD1wrTC27fSjFISJABUDZ17VgezJOQe9_0o3_9WJIWBYvqkpJyge7-5g3ZkgT4wZBoC1vzw_wcB An otherwise-unjacketed optical fiber, but with a woven Kevlar strength covering, would be useful. Obviously, the FAA wouldn't approve, but that doesn't keep us from imagining, huh? Jim Bell.
