Has anybody ever listened to say, the HF bands as we would with a shortwave radio, from space?
Does the communications gear on the ISS have the capability to listen to HF? At that level, (around 400 km or 250 mi) they are basically at around the same height as the F2 layer in summer, and slightly above it in winter.... What effect would the ionospheric bending have on reception of digital modes?
Also, I wonder how much of the junk I hear on HF bands is preventable emissions from devices around the world that aren't meant to be transmitting. One could ascertain that instantly from up in space!
This analysis of these parameters from space actually seems like a quite worthy experiment that as far as I know has never been done..