COURSE START
NDB - ADF PRINCIPLES
Itroduction
Identification
Emission characteristics
Use of navigation
Types of ndb
Locator beacon
Medium range en-route ndb
Long range ndb
ADF
Antennas
Loop antenna
Sense antenna
Receiver
Control panel
PRESENTATION AND INTERPRETATION - Heading, Track and Course
Drift
Wind correction angle (wca)
References for heading (bearing)
Converting magnetic heading into true heading
Relation between the compass and magnetic headings
Converting compass heading into true heading
Correction for variation
Qdm and qdr
Relative bearing
Adf indicators
Fixed card indicator
Moving card indicator
Radio magnetic indicator (rmi)
Adf in-flight procedures
Homing
Tracking
Keeping an inbound track
Keeping an outbound track
Intercepting a track
Procedure turn
Holding
COVERAGE AND RANGE
Effect of transmitter power
Effect of propagation path
Effect of terrain
Effect of terrain and aircraft height
Protection range
Error sources
Quadrantal error
Coastal refraction
Minimising coastal refraction error
Night effect
Mountain effect (multipath)
Static interference
Station interference
Absence of failure warning
Accuracy
COURSE END
