If you look at the other thread (http://forums.radioreference.com/motorola-forum/212246-top-line-motorola-q.html) you will see that there is a bit of confusion as to what exactly he is trying to listen to.
As far as the original question and problem at hand here, I think the OP maybe should have passed on the cool shiny Motorola radio and simply purchased a digital scanner. One step at a time... learn about what you are trying to listen to and go from there. A good scanner would give you a lot more info about what you are hearing than the Motorola will. Will the XTS sound better? Sure it will, but not until you figure out what you need to program into it.
As far as the original question and problem at hand here, I think the OP maybe should have passed on the cool shiny Motorola radio and simply purchased a digital scanner. One step at a time... learn about what you are trying to listen to and go from there. A good scanner would give you a lot more info about what you are hearing than the Motorola will. Will the XTS sound better? Sure it will, but not until you figure out what you need to program into it.