Benjamin Winkel

I looked into this in a little bit more detail. When you look at the `python-sgp4` documentation on [PyPI](https://pypi.org/project/sgp4/), you'll see that there example imports the relevant classes from `sgp4.api`....

Good catch. I'll fix this.

Hi @1ntell1gentDB, I looked into this in more detail. The algorithms to calculate LoS, diffraction, troposcatter, and ducting are quite similar in P.452-16 and P.1812-4, but not exactly equal. For...

If I'm not mistaken, P.1812 includes the clutter into the terrain heights of the path (plus some endpoint correction). Applying P.2108 would then do an additional clutter correction, which likely...

Dear @1ntell1gentDB, I've finished another tutorial notebook ("03f_pre+postprocessing.ipynb") that shows how you could (roughly) estimate the P.1812 attenuations using pycraf's P.452 implementation. It is completely untested and for now it...

Hmm, in that log-file I can't see an error (only compilation/installation debug messages). Since you're using MacOS - have you followed the installation instructions? The default compiler (clang) won't work,...

Indeed, this looks good. I just realize that you use a very strange test command - with `-P p.1812` you would test a package "p.1812" which doesn't exist. To make...

PS: Once the tests were successful, you need to install the package from the source: ```bash python setup.py install ```

Yes, but in this case, the "p.1812" is not a sub-package of pycraf, but just a version of the software. (The modifications will be merged back to the main development...

How did you download the sources, via git or downloading the zip?