Well, at this point at least I'm not willing to spend that kind of money on software... I'm guessing that the digital portion of HM01 is also encrypted so would attempting to demodulate it be worth it?
I'm on an OS X system at the moment but I'm beginning to consider switching to a Windows based machine for my radio stuff.
Yes, the data for HM01 is encrypted, so demoding it would yield little, other than habits in naming. SK01 used the same data format, and there is a story that at least one SK01 transmission was not encrypted, but rather clear text. I have no idea if that is true or not, but the only way to detect errors like that would be to demod the transmissions.
I was a Mac guy, and went to PC for just the reason you are thinking of, to support radio stuff. In 1994 I was a Mac user only. I started messing with combining computer and radio technologies and found there was little off-the-shelf for the Mac. So in 1996 I got a Mac 640 Dos, this was a Mac 640 Performa with a second motherboard mounted in the same case, this second motherboard was a PC. You could switch back and forth from Mac to PC with the selection of a couple of key strokes. But in 1997 computer controlled radios started to hit big, and in order to support the WinRadio WR-1000a that I wanted I needed a PC motherboard with an ISA slot, something the 640 Dos did not have. So I got a PC for that application, and never gotten another Mac desktop since then.
Windows may be a pain, but the fact is there is a lot more off-the-shelf radio stuff for Windows than any other OS.
T!