Inside the Predator Ground Control Station Published May 29, 2010 By 452 AMW MARCH AIR RESERVE BASE, CALIF. -- U.S. Air Force Master Sgt. Jennifer Oberg, background, a communications maintenance instructor, explains the features of a ground control station to Staff Sgt. Jason Avera, center, and Senior Airman Raquel Martinez, foreground, during training at March Air Reserve Base, Calif.