NDB & ADF Flashcards
1
Q
Aircraft Equipment in ADF
A
Loop Aerial & sense aerial
2
Q
What diagram does ADF Antennae create?
A
Cardioid
3
Q
Emission Charac of NDB For Long Range
A
N0N A1A (BFO on)
4
Q
Emission Charac of NDB For Short Range
A
N0N A2A
5
Q
Factors affecting ADF accuracy
A
Static Interference, Station Interference, Night effect, mountain effect, coastal refraction, quadrantal error, bank angle error, lack of failure warning
6
Q
In what time should we avoid using ADF?
A
1 hour of sunset/sunrise
7
Q
When are mountain effect errors highest?
A
Low altitude, can be minimised by flying higherW
8
Q
When is coastal refraction negligible?
A
90 degrees to the coast
9
Q
Accuracy of ADF
A
5 degrees by day
10
Q
Frequency range of ADF
A
190 - 1750 KHz
11
Q
Propagataion path in NDB/ADF
A
Surface wave
