If i understand this correctly its something like this:
-You get Messages from Site 1. You play them to UL
-Ul Reponds with a Narrow beam transmission which contain coordinates or the location of a system
-You go to that System and play the Message from Site 1 again to the UL
-The UL now Points to Site 2 in the new System
That sounds more loke it.
What's the wizardry to decode the coordinates?