Thanks to Michael Ossmann and Hackaday.com it is possible to learn some RF tips directly from the ‘hacker-designer’ of HackRF!
http://hackaday.com/2016/03/23/michael-ossmann-makes-you-an-rf-design-hero
https://youtu.be/TnRn3Kn_aXg
I’m very happy also because I switched to KiCad when I discover HackRF board and I thought: “That’s great! KiCad is affordable for complex design!”
Then when I developed my kicad StepUp tools to convert KiCad pcb and parts to STEP, I used exactly HackRF as my first board to be converted in STEP and displayed in Catia!
Maurice