I would suggest that all these educational satellites that are just sending telemetry should have their own allocation, but the powers-that-be would probably take the spectrum from us to make it! So I suppose all these satellites at least help us protect the spectrum.

Amicalsat has all of the protocols nicely documented so we can capture data and process it. I think that's a fair use of ham radio. On the other hand, the information on TTU100 is less forthcoming: https://old.taltech.ee/projects/mektory-eng/satellite-programme-3/satellite-... Sure we can capture telemetry, but the other experiments are just using the ham bands for their own purposes. The trade off is that we can claim the 10 GHz band is being used by ham radio the next time someone tries to take it away.

-Stephen N8URE