| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an ILS device capable of easily searching for a fault in the case where a modulation degree difference indicating a course shift is changed during operation. <P>SOLUTION: An ILS device includes: signal generators 11, 12 each for generating a high frequency signal; an antenna array 22 for converting the high frequency signal generated in the signal generator into a radio wave and radiating the radio wave; a high frequency phase detection circuit 16 for detecting a phase difference between the high frequency signal inputted from the signal generator to the antenna array and a high frequency signal picked up from the antenna array; and a monitor system 18 for displaying the phase difference detected in the high frequency phase detection circuit. <P>COPYRIGHT: (C)2012,JPO&INPIT |
