Chapter 13, Microwave Landing System

Question 1

MLS azimuth and elevation transmitters
operate in which frequency band?

Answer 1

5 GHz

Question 2

What are the angular extremes for
azimuth guidance either side of the
runway centreline in a basic MLS
installation?

Answer 2

+/- 40°

Question 3

What are the elevation guidance limits for an
MLS installation?

Answer 3

+15° to +20°

Question 4

MLS range information is provided by the

Answer 4

DME navigation aid

Question 5

Time referenced scanning beams are used in
the MLS to provide

Answer 5

Azimuth and elevation guidance

Question 6

How many MLS channels are available

Answer 6

200

Question 7

During an MLS approach, deviation in
azimuth and elevation is displayed on the

Answer 7

HSI

Question 8

The elevation approach angle for an approach
is selected by

Answer 8

Flight crew using the CDU

Question 9

With increasing elevation approach angles,
slant range to the airfield will

Answer 9

Increase

Question 10

MLS ground equipment identification codes
are provided by

Answer 10

Four Morse code characters