NDB

Question 1

What is an NDB

Answer 1

A non- directional beacon, a ground based transmitter which transmits radio energy in all directions

Question 2

What are the 4 main characteristics of an NDB

Answer 2

1. A transmitter that consists of two aerial towers joined by towers
2. Transmits on a single frequency in LF or MF 200kHz - 400kHz
3. Occasionally uses higher frequency to minimize effects of mountainous terrain
4. A known and published location.

Question 3

What is an ADF

Answer 3

Auto direction finder

Question 4

Is an adf installed in an aircraft

Answer 4

Yes

Question 5

What does it consist of

Answer 5

• reciever w/ controls
• antennae (loop + sense antenna in a single unit)
• an indicator

Question 6

What are the behaviours of a Radio Magnetic Indicator

Answer 6

• needle always points to NDB
• tail of RMI needle indicates bearing FROM NDB
• compass card rotates to indicate magnetic heading, needle indicates magnetic bearing

Question 7

P14 24

Answer 7

H

Question 8

What are 3 things you need to do to use an NDB

Answer 8

1. Identify nearby NDB that is within rated coverage
2. Determine NDB frequency
3. Determine identifier for NDB

Question 9

What is the general range of an NDB

Answer 9

30NM - 400NM