____ transmission systems transmit tightly focused beams of radio signals from one ground-based microwave transmission antenna to another.
a. Downlink
b. Terrestrial microwave
c. Satellite
d. Cellular
Answer: B
____ transmission systems transmit tightly focused beams of radio signals from one ground-based microwave transmission antenna to another.
a. Downlink
b. Terrestrial microwave
c. Satellite
d. Cellular