| 摘要 |
PROBLEM TO BE SOLVED: To obtain a microwave transmission view area display navigation system which enables a viewer to instantaneously grasp the shortest movement route for safely moving to a transmittable place within a limited range of flight altitude when relaying a television program from a helicopter. SOLUTION: In a map image 6, a view area 10 from a receiving base station corresponding to the flight altitude is differently colored and displayed and the position 9 of the helicopter obtained by using a GPS is displayed therein. Further, the lowest altitude 12 needed to transmit a microwave from the position of the helicopter is displayed to clearly show how much the altitude can be lost on condition that the microwave is transmitted while a picture is taken. Further, the part 8 of land above the flight altitude is displayed in a different color to make it possible to judge the shortest flight course for safely moving a view area without colliding against the ground. |
