Ok, I havent heard anything on clark going to digital, just som talk about woodbridge. So far, it is taking an extremly long time to get frequencies from the FCC. And it will be a lot of money to switch to a digital system, and if clark pd goes encrypted, forget it.
Now, about how to recive it on your astro, you will have to have the right flash code that can do apco 25 digital operation. Once they switch to a digital system, there will probally base frequencies. On on those frequencies, are in your portable, you will have to insert all you talk groups to pick up pd 1 or pd 2 for clark. It should be a while before they switch over...
I don't think that made that much sense, but if you know a thing or two about digital systems you'll understand.