[Hackrf-dev] help identifying signal

[xun wang]

Hi, I’m very new to SDR and I’m not an engineer, but I do have some experience in programming, and I’m also very interested in learning all about it signal processing. I played around with building an FM in gnuradio, GPS simulation, pager decoding & ADS-B and they’re simple enough & fun with readily built tools available. Now I want to go deeper into SDR. 

I went through Michael’s video tutorial and is the process of learning more from various sources. Last night I borrow my friend’s Prius key fob and recorded some files to take a look with my HackRF. I can’t seem to identify 1 or 0s because it looks to have more than 2 possibilities to me. I’ve processed the file to the best of my knowledge(which is not deep at all) mainly based on the hint from Michael’s Lesson 8 & 9. Can someone take a look and see what’s the next step I should do to further identify it? or it’s already pretty clear and I just don’t see it due to my inexperience? thank you!

Here is a screenshot: http://imgur.com/1CXGcoJ