ILS

Question 1

What does ILS consist of

Answer 1

Localiser
Glideslope
Range

Question 2

What is cat 1

Answer 2

200’

Question 3

What is cat 2

Answer 3

100’

Question 4

What is cat 3 A

Answer 4

50’

Question 5

What is cat 3 B

Answer 5

0’

Question 6

What is cat 3 c

Answer 6

0’ / 0m

Question 7

What is the principle of ILS

Answer 7

Difference in depth of modulation

Question 8

What is the frequency range of ILS

Answer 8

108.10 - 111.95

Only odd number in first decimal

Question 9

Where is ILS glideslope usually located

Answer 9

120m to the side

300m down the runway

Question 10

What is the frequency of ILS glide slope

Answer 10

328.6 - 335.4 MHz (UHF)

Number not on chart

Question 11

What are the false glideslope lobes ILS

Answer 11

Above glide slope only

In multiples of main glideslope

Question 12

What is the full scale deflection of glideslope ILS

Answer 12

0.7°

Question 13

What is full scale deflection of localiser ILS

Answer 13

2.5°

Question 14

What scale deflection does a ILS need to be

Answer 14

Half scale deflection

Question 15

What frequency is a marker beacon

Answer 15

75mhz

Question 16

What is the outer marker beacon

Answer 16

Blue

400hz

5 nm

Question 17

What is middle marker beacon

Answer 17

Amber

• . -.-.-.-.-.-.

1300hz

0.5 - 1nm

Question 18

What is the inner (airway) marker beacon

Answer 18

White

3000hz

……..

0.2nm

Question 19

What can be in the critical area ILS

Answer 19

No vehicles

Question 20

What can be in the sensitive area ils

Answer 20

A limited amount of vehicles

Question 21

What are the components of microwave landing system (MLS)

Answer 21

Azimuth = horizontal 
\+
Elevation 
\+ 
DME position

Question 22

What frequency is a microwave landing system

Answer 22

5031 - 5091 MHz (SHF)

Question 23

What is the Benefit is there for a microwave landing system

Answer 23

Can create whatever type of approach you want as long as it is within the cone