Communication Principles

Question 1

To what precision are time checks given?

Answer 1

To the nearest half minute.

Question 2

State how is the following transmitted:

(a) 118.000

(b) 121.050

(c) 123.500

(d) 136.225

Answer 2

(a) wun wun ait dayseemal zero
(b) wun too wun dayseemal zero fife zero
(c) wun too tree dayseemal fife
(d) wun tree six dayseemal too too fife

Question 3

State how are the following times transmitted:

(a) 0705

(b) 1900

(c) 2155

Answer 3

(a) zero seven zero fife (or just zero fife)
(b) wun niner zero zero
(c) too wun fife fife (or just fife fife)

Question 4

How can the quality of RT transmissions be described?

Answer 4

According to the readability scale.

1 = unreadable.

2 = readable now and then.

3 = readable with difficulty.

4 = readable.

5 = perfectly readable.

Question 5

State how is the following transmitted:

(a) 127.375

(b) 340°

(c) FL125

(d) QNH 1021

(e) squawk 3443

(f) runway 09

Answer 5

(a) wun too seven dayseemal tree seven fife
(b) tree fower zero degrees
(c) flight level wun too fife
(d) QNH wun zero too wun
(e) squawk tree fower fower tree
(f) runway zero niner

Question 6

What is a standard response to a garbled or unclear message?

Answer 6

“Say again” or any variations of that, depending on which part of the message needs repeating.

Question 7

State how is the following transmitted:

(a) 10

(b) 100

(c) 1,000

(d) 10,000

Answer 7

(a) wun zero
(b) wun hundred
(c) wun tousand
(d) wun zero tousand