1. Previously, since 1996, Indovision had operated using television decoders and parabolic antennas . 2. A principal telecommunications device of the ground station is the parabolic antenna . 3. He also built the first parabolic antenna , using a zinc gutter sheet. 4. The first installation was an parabolic antenna with S and X band capability. 5. This required the installation of a large parabolic antenna to receive the signals. 6. This includes parabolic antennas and lens-type reflective antennas of all kinds. 7. A lightweight parabolic antenna erected near the main quarters would provide communications with Earth. 8. In addition, a 30-foot, gyro-stabilized, computer-oriented, triaxial, parabolic antenna was installed on her afterdeck. 9. The radar uses an open frame truncated parabolic antenna with a stacked antenna feed. 10. In telecommunications and radar, a "'Cassegrain antenna "'is a parabolic antenna in which the beam.
