| 摘要 |
PROBLEM TO BE SOLVED: To provide an antenna control system that can easily conduct direction control in a way that the direction of a communication antenna can easily and quickly be controlled in the same direction as that of a pilot antenna capturing an object satellite without causing communication interference between the antennas. SOLUTION: In this antenna system, the azimuth angle and the elevating angle of two antennas 5, 7 can be adjusted by an azimuth angle adjustment mechanism 1 and an elevating angle adjustment mechanism 3 that are used in common for both antennas. The antenna 5 (7) is supported by the elevating angle adjustment mechanism 3 via a rotary mechanism 6 (8) so as to be rotation- adjustable around an arm axis 01 (02) of an antenna support arm 4A (4B). Adjusting the rotary angle of each of the antennas 5, 7 can control the direction of the antennas 5, 7. The one antenna 5 is used for a communication antenna and the other antenna 7 is used for a pilot antenna for satellite tracking and capturing purposes. A wide directivity is provided to the pilot antenna 7 to capture a satellite and the antenna system can receive a pilot signal from a satellite over a wide range regardless of the direction of the pilot antenna 7.
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