Comm 19-20: Routine HF radiotelephony procedures

Question 1

Common Airmanship procedures

Answer 1

1. Know what you are going to say before you transmit
2. Listen out before transmitting.
3. Keep your voice at a normal conversation speed or slower.
4. Keep your voice at a normal pitch
5. Keep the microphone close to your lips
6. Never use profane or abusive language

Question 2

Say again
civilian bodies govern the meaning
Allied military assigned
Receipt of message
Change of freq
actual weather
forecast weather
close watch
acknowledge
Interrogative
I SPELL

Answer 2

Say again – IMI
Q codes – civilian bodies govern the meaning
Z codes – Allied military assigned
QSL – Receipt of message
QSY – Change of freq
QAM – actual weather
QFZ – forecast weather
ZKJ – close watch
ZEV – acknowledge
INT – Interrogative
I SPELL

Question 3

Radio check
Signal strength
Report of readability

Answer 3

Signal strength
Loud
Good
Weak
Very weak
Fading

Report of readability
Clear
Readable
Unreadable
Distorted
With interference
Intermittent

Question 4

Message receipt

Answer 4

Required for all messages. May be confirmed by either the proword Roger or readback correct. Use QSL

Question 5

Lost comms

Answer 5

1. Conduct voice radio check on primary circuit up to 3 times
2. Conduct voice radio check on secondary circuit up to 3 times
3. Return to primary circuit, wait 15 minutes and repeat steps 1 and 2
4. If comms are re-established on secondary freq, a new secondary must be established
5. If still unsuccessful, open watch with MACS on most appropriate freq
6. Phone patch or request MACS to call pipeline and advise them their services are no longer required.