(K)Element 3-70 Instrument Landing System

Question 1

What is the frequency range of the localizer beam system used by aircraft to find the centerline of a runway during an ILS approach to an airport?

Answer 1

108.10 mhz-111.96 mhz

Question 2

What is the frequency range of the marker beacon system used to indicate an aircrafts position during an ILS approach to an airport?

Answer 2

the outer middle and inner marker beacons carrier frequencies are all 75 mhz

Question 3

Which of the following is required component of an ILS?

Answer 3

Localizer: shows aircraft deviation horizontally from center of runway

Question 4

What type of antenna is used in an aircrafts ILS glideslope installation?

Answer 4

a folded dipole reception antenna

Question 5

Choose the only correct statement about the localizer beam system used by aircraft to find the centerline of a runway during an ILS approach to an airport. The localizer beam system:

Answer 5

produces two amplitude modulated antenna patterns: one pattern with an audio frequency of 90 hz and one pattern with an audio frequency of 150 hz, one left of the runway centerline and one right of the centerline

Question 6

On runway approach, an ILS localizer shows

Answer 6

deviation left or right of runway center line