Extra exam question E2D06

WhyEME contacts are typically established using time-synchronous transmissions that alternate between stations. EME contacts are typically established using time-synchronous transmissions, where each station transmits and listens during precisely coordinated, alternating time windows synchronized to a shared clock, since the moon's round-trip delay and the weak signal levels make a normal back-and-forth exchange impractical, answer A. Store-and-forward messaging, timing transmissions off a reflected beacon, and high-speed CW identification aren't how modern EME contacts are actually made.