These are great ideas and whatever is implemented will be exciting. Please consider L-band uplink in any design.
73, Stefan, VE4SW
On Thu, Oct 31, 2019 at 11:27 AM John Brier via AMSAT-BB amsat-bb@amsat.org wrote:
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 _______________________________________________ Sent via AMSAT-BB@amsat.org. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: https://www.amsat.org/mailman/listinfo/amsat-bb