(K)Element 3-72 Aircraft Antenna Systems and Frequencies

Question 1

What type of pattern is radiated from a ground station phase array directional antenna when transmitting PPM pulese in a mode S interrogation siganl of an Aircrafts Traffic alert and collision avoidance system?

Answer 1

1030 Mhz directional

Question 2

What type of antenna is used in an aircrafts ILS marker beacon?

Answer 2

a balanced loop reception antenna

Question 3

What is the frequency range of an aircrafts VHF comunications?`

Answer 3

118 mhz to 136.1975(worldwide up to 151.975`

Question 4

Aircraft Emergency locater tranmistters operate on what frequency?

Answer 4

121.5, 243, 406 mhz

Question 5

What is the frequency reange of an aircrafts radio altimeter?

Answer 5

4250 mhz to 4350 mhz

Question 6

What type of antenna is attached to an aircrafts module C transponder and used to receive 1030 mhz interrogation from ATCRBS?

Answer 6

an L band monopple blade type omnidirectional antenna