ke4ahr
20
Some ideas:
‘Timeslot’ transponder time: e.g., published windows when the signal will be on the satellite for say 1m to 60m, 1-2-4 times a day.
Another possibility may be having the teleport generate the data and send it out. Some higher order QAM may be possible. There is a software open-source QAM modem but based on my analysis, it generates a lot of sidebands and needs a TX FIR filter per carrier to keep one carrier out of another carrier, as well as an adjustment to the parameters to make it work within a provided bandwidth. GitHub - romanz/amodem: Audio MODEM Communication Library in Python.