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direction-finder | |||
automatic direction finder (通过发射电磁信号来确定方向的设备,可以用在飞机上也可以用在地面设备上。自动测向仪的工作频率为低频或中频,主要部分包括一个环行天线,并给出发射机的零位。使用测向天线可以解决180°模糊问题。最常用的自动测向仪利用了称为 NDB (全向信标)的地面发射站) | |||
sense finder | |||
high frequency direction finder | |||
radio compass | |||
radiocompass; telecompass; wireless compass | |||
automatic radio direction finder; automatic direction finder; direction finding; direction finder | |||
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radiogoniometer |
无线 电 罗盘 : 19 phrases in 7 subjects |
Air defense | 2 |
Aviation | 2 |
Electronics | 1 |
General | 1 |
Port facilities | 1 |
Space | 6 |
Technology | 6 |