RPL/PPL - Radio Test

Question 1

Which band does standard aircraft and ATC communicate?

Answer 1

VHF

Question 2

What band do long-range communication, international and oceanic flights operate in?

Answer 2

HF

Question 3

What band does military aircraft communications operate in?

Answer 3

UHF

Question 4

What frequency does VHF operate within?

Answer 4

30 to 300 MHZ.

(Aviation uses 118 to 137 Mhz)

Question 5

What distance range can VHF operate?

Answer 5

200-250 nm and within line of sight

Question 6

What distance range can HF cover?

Answer 6

Global as it is skywave propagation, which bounces off the ionosphere.

Question 7

What can affect radio propagation?

Answer 7

Power of transmitter
Nature of terrain
State of ionosphere
Sun spot activity
Lightning

Question 8

What does CTAF stand for and what does it mean?

Answer 8

Controlled Traffic Advisory Frequency

Common frequency used by aircraft when there is no tower or tower is closed.

Example of how to find the CTAF of Goulburn

Question 9

What is an NDB?

Answer 9

Airports have an NDB, which is a ground based radio transmitter, that emits signals in all directions (non-directional). Aircraft equipped with an ADF (Automatic Direction Dinfer) can use the signal to navigate toward the station.

Goulburn NDB