Welcome to the community, Norseman.
Satcoms work differently this time around. Obviously they are placed on the ground rather than fly.
If your team has 1 out, anyone sighted in the line of sight of a teammate will show up on the Minimap.
2 Out, Will sweep like the old UAVS did.
3 out, Increases frequency of the UAV sweep, like having Multiple UAVs in previous titles.
4 or more out will act like an Advanced UAV or Blackbird, showing Direction enemies are moving in as well as their location.
Hope this helps.