I'm trying to provide a source of GPS almanac files (in SEM format) for a non-connected / sometimes connected network.
I know that I can download them from the USCG NAVCEN. However I don't want to have to air-gap them across to my network.
So the plan is to (somehow) get them from a GPS receiver, format them into SEM, and serve them up using a file share / web server. I'm confident about the last step. I have a rough idea of how to download the almanac, but no code. I've seen some online resources that allow writing SEM, but nothing that provides all of
- a simple API
- open source
- (obviously) maintained
So at this stage I'm considering writing the "missing parts". Has anyone actually tried this? Any recommendations for usable (open source) blocks.