U.S. Space Force Lt. Gen. Stephen Whiting, Space Operations Command commander, learns how to perform a feed swap on a Giggasat FA-150 antenna at Peterson Space Force Base, Colorado, Dec. 13, 2021. The antenna is one piece of an experimental system known as the Multiband Assessment of the Communications Environment, or MACE. (U.S. Space Force photo by Airman 1st Class Brooke Wise)