It seems to me that the Pro-107 is almost entirely software driven. RR database, control software, and firmware are all upgradable. So what's to say that DSP funtionality can't be added as a future firmware upgrade? Can APCO-25 and other digital mechanisms be supported with a firmware upgrade or is this something that has to be done via an actual hardware upgrade? I tend to think that digital capabilities can be added via firmware on the current hardware platform. What do you think?