On Tue, Oct 29, 2019 at 8:19 PM Leffke, Zachary via AMSAT-BB amsat-bb@amsat.org wrote:
Idea 2: How 'utilized' are the Amateur Satellite Service bands? Different idea could be spectrum mapping.......depending on the type of SDR, if they can receive the full 3 MHz of 435-438 MHz band....do some FFT/averaging magic, store off FFT 'snapshots', and then later downlink the snapshots. Idea would be to develop a 'heatmap' of the use of the 435-438 MHz band. Doesn't have to be hyper-precise geolocation or anything that crazy to still to be useful......as long as they manage a reasonably accurate timestamp for when the FFT was taken (preferably in UTC, or at least something that can be mapped to UTC) they could figure out where the bird was from TLEs later. If they happen to be flying a GPS, even better. Global heatmap of the 435-438 MHz band might be good info for groups like IARU for coordination purposes.
More data can't hurt but this has already been done:
73, John Brier KG4AKV