Chapter 2: Marker Systems

Question 1

purpose of marker beacon

Answer 1

indicate the airplane over a position:

points along air route
points along landing path

Question 2

3 markers categories

Answer 2

outer marker
middle marker
inner marker

Question 3

distance from runway threshold for the 3 markers

Answer 3

OM: 4 nm
MM: 3500 ft
IM: 250 ft

Question 4

colour for each marker

Answer 4

OM: blue
MM: amber
IM: white

Question 5

morse code for each marker

Answer 5

OM: - - -
MM: . - . - . -
IM: ….

Question 6

what is the distance for runway visual range

Answer 6

1200 ft

Question 7

what is a sequenced flashing lights?

Answer 7

apparent movement of light towards runway

Question 8

what is approach lights?

Answer 8

visible extension of runway, for pilot to judge altitude and position

Question 9

what is runway edge lights?

Answer 9

shows the available width of runway, goes full length of runway

Question 10

what is touchdown zone lights?

Answer 10

shows touchdown area for aircraft, spreads about first 3000 ft of runway

Question 11

power density formula

Answer 11

PD = transmitter power / (4pi * distance²)

transmitter power in Watts
distance in nm

Question 12

what does aircraft marker beacon receiver system consist of?

Answer 12

75 MHz filter
RF amplifier and detector
3-audio filters to describe audio tones

Question 13

audio tone for 3 markers

Answer 13

OM: 400 Hz
MM: 1300 Hz
IM: 3000 Hz