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