What exactly do you mean by maximum defination? Anytime you are dealing
with the sattelite/broadcast world, it is critical that you keep your output
peak levels below 0 dBm or -20 dBFS. If you are running much hotter, you
WILL get calls from those who receive the downlink. If you are looking to
maximize the percieved "Loudness" of the program material, you can compress
the snot out of the signal then boost the gain but depending on the program
material, you will be doing more harm than good.