educational samples and theoreticaly ways to get them

Hi! My name is Marius and yesterday, though I was in a hurry to catch my train back to HL, I was in Harald's ETSI Tetra presentation. It was great; and I do have a USRP2, portable power supply, a sailing license (there're these big coast-guard towers here). Any implications are theoretically of course at this point. Just a small question: can one expect legal trouble if... accidently though... some Tetra signals found their way into a GR cfile onto some web server and would be shared (here)? Afaik it's not excactly ISM band. And to the second question: what was the name of the recommendable book, that was not marketing foo? I'd like to give the cryptanalysis a try, but before I can say that I have to look at the standards and algorithms. Did anyone already review that? I know that Stephen Glass of the OP25 project did some research on APCO 25. - Which isn't ETSI. Best, Marius -- pgp id: 0xCCCA5E74, mc - at - sandokai.eu http://crazylazy.info/blog, twitter: @wishinet