Very interesting. I used to work with an older gentlemen who did RF comms in the military and back in early 2000s he used to tell me stories about his random RF hacking. One such story was around a garage door opener he modified with a potentiometer so he could test opening frequencies by rotating the dial. Obviously this wouldn't work for the "newer" style openers.

I've recently purchased a HackRF to start to learn about RF technologies in consumer grade "security" products like garage door openers, Z-Wave, wireless home security systems, etc. I've realized that after watching the first (very well done) video by Michael Ossman on HackRF that it's not going to be something easy to learn overnight.

While I'm sure this would be "easy" to do with HackRF given what I've read on Samy's site, does anyone have any input on how/why using this recycled hardware would be better in some regard?