[inigyou]

Maybe that's why nobody else does

[rescbr]

You can use a FPGA, like this 2013 project: http://www.aholme.co.uk/GPS/Main.htm

Or go old school (1991-1992): https://lea.hamradio.si/~s53mv/navsats/theory.html

So yeah, this regulation is absolutely an inconvenient measure.

[inigyou]

Have you done that?

[rescbr]

Nah, I live in a major city between two airports, under an airplane departure and a heli route. I can't really launch rockets or balloons from my home.

When I was at uni I didn't have the funds for this hobby unfortunately.

[minetest2048]

There's a strong indication that SpaceX does use software receiver in Falcon 9 and Starlink: when they didn't encrypt the downlink telemetry someone captured the signal and found some plain text: https://www.rtl-sdr.com/receiving-space-x-falcon-9-telemetry...

That plain text looks like what a software GNSS receiver outputs as its very verbose, and this paper: https://radionavlab.ae.utexas.edu/wp-content/uploads/2022/10... , a paper about a software receiver mentioned this:

> PpRx has been licensed through the Radionavigation Lab to multiple commercial companies, but notably a major aerospace company that uses the technology across their suite of advanced spacecraft and satellites. The SDR is deployed across the company’s mega-constellation of satellites used for broadband Internet