| 单词 |
fan-marker beacon |
| 释义 |
fan-marker beacon fan-marker beacon[′fan ‚märk·ər ‚bē·kən] (navigation) A very-high frequency radio facility having a vertically directed fan beam interesecting an airway to provide a fix. Also known as fan marker; radio fan-marker beacon. fan marker A highly directional radio signal transmitted vertically upward from a transmitter located along a navigational radio-range, as in an instrument landing system (ILS). The output of a fan marker is heard only when the aircraft is directly above the transmitter, thus indicating to the pilot his exact position. A fan marker is keyed for identification. Also called a fan-marker beacon. |
| 随便看 |
- lopace
- lopadorrhynchidae
- lopair
- lopam
- lopandino
- lop and top
- lopap
- lopar
- loparc
- loparite
- loparite-(ce)
- lopatin
- lopatin, aleksei
- lopatin, aleksei vasilevich
- lopatin, german
- lopatin, german aleksandrovich
- lopatin, innokentii
- lopatin, innokentii aleksandrovich
- lopatin, lev
- lopatin, lev mikhailovich
- lopatin mountain
- lopatino
- lopatinskii
- lopatka, adam
- lopatka, sharon rina
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