Radio nav aids

NDB is a ground based nav aid which transmits a carrier signal in the ?

MF frequency
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
The ADF has 2 antennas, what are they?

The loop antenna and the sense antenna.
When the adf is switched to "ANT" mode which antenna is used ?

Sense antenna only.
NDB stations broadcast between ______ to _______ frequency

200-415 khz

Author

sideways15

20536

Card Set

Radio nav aids

Description

NDB

Updated

2010-05-24T11:06:17Z

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