[ezcrypt]

I mean, she was pretty clear about why she found the signal, and that she read the RDS documentation in order to decode it, etc.

I think the more fun part was towards the end, when she brute-forced decryption keys for traffic information coordinates and also found the (AFAIK) non-standard Finnish bus stop time table information in another band and reverse-engineered that, and I think that was the takeaway of the talk.