Radio nav aids

Card Set Information

Author:
sideways15
ID:
20536
Filename:
Radio nav aids
Updated:
2010-05-24 07:06:17
Tags:
NDB
Folders:

Description:
NDB
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  1. NDB is a ground based nav aid which transmits a carrier signal in the ?
    MF frequency
  2. Erros associated with the NDB
    hint Mintchat
    • Mountain effect
    • Interference (co channel)
    • Night effect (skywave effects)
    • Terrain effects ( signals weakened over non conductive surfaces )
    • Coastal refraction (signal bent as it crosses the coast)
    • Height effect (reduced range at low altitude)
    • Aircraft error (interference from the aircraft)
    • Thunderstorms
  3. The ADF has 2 antennas, what are they?
    The loop antenna and the sense antenna.
  4. When the adf is switched to "ANT" mode which antenna is used ?
    Sense antenna only.
  5. NDB stations broadcast between ______ to _______ frequency
    200-415 khz

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