| 摘要 |
PURPOSE:To execute the degree adjustment of a fitting angle between respective antennas at the fitting step before loading an aircraft and to decrease a wiring weight by fitting plural receiving antennas close to one case. CONSTITUTION:Plural receiving antennas 1 for a countermeasure device are fitted close to one case 2 together with a preamplifier 5 for an antenna. When the countermeasure device to fit the receiving antenna 1 in this way is operated during the flying, a linear actuator 4 is driven so that an antenna system 6 comes to be a wiring condition. In this condition, for the antenna system 6, the all-round direction of an aircraft body 8 comes to be an antenna covering area. At the time of the take-off and the landing, the linear actuator 4 is driven so that the antenna system 6 comes to be a storing condition.
|
