Q. What is the use of a parabolic antenna?

Answer

Point-to-point communications using parabolic antennas, which are high-gain satellites, are employed in a variety of contexts, including electromagnetic relay links for the transmission of telephone and television signals between neighboring cities, wireless WAN/LAN links for the transmission of data between computers, satellite links, and spacecraft communication antenna arrays. Radio telescopes also benefit from their use. Parabolic antennas are frequently used for weather detection and when a narrow beam of radio waves must be sent, as in the case of guided missiles, airplanes, ships, and so on. Since the introduction of satellite TV receivers for the home, parabolic antennas have been a regular sight in many countries landscapes.