7-63I2 D
 How are Iridium antennas tracking the satellites?
A. They are flat-panel arrays that must be oriented to the satellites in their near-polar orbit.
B. They are directional dish antennas that must track the satellites as they pass overhead.
C. They are omni-directional dish antennas that locate the satellites as they pass overhead.
D. They are omni-directional antennas that receive signal as various satellites pass overhead.
