Is It a Correction of Artillery Fire?

My role is, i'm s for y sar group commander, and i have unit wich, doing a different kind of e communication. Is the part of c for means command control, computing, communications,. And one of my units does this correction of artillery fire. So you basin the artillery spotting, using hite devices to actually map the fall of fire. We using ya is. Can you explain what that is for our listeners? Youa is is planes without pilot andmaderial atl field. Yes, yes, yes.