[fortysixdegrees]

Yes 100%.

Get a ublox F9P board and antenna. Couple hundred dollars.

Set it up to do RTK using public CORS base stations (will give you 2cm apx accuracy). You will get a kick out of it.

Then next level is grab the latest rtklib, and do PPP processing.

The RTK step is simple and will boost your motivation to learn more. PPP is also easy to setup, but there are many things you can take to make it more accurate. Each one you will learn about something new. Satellite clock corrections, position corrections, ionosphere and troposphere modelling, receiver dynamics, tidal loading, wind up, etc. List goes on a lot

Once you've done that you'll have a 'feel' for it. From there you'll find your own resources based on what most interests you

And yea, it is fascinating. I'm not bored of it after all this time. New stuff keeps coming out. SSR is super interesting right now