Readability |
Signal |
Tone |
|
1 – Unreadable |
1 – Faint signals, barely perceptible |
1 – Sixty cycle ac or less, very rough and broad |
|
2 – Barely Readable |
2 – Very weak signals |
2 – Very rough ac |
|
3 – Readable with Difficulty |
3 – Weak Signals |
3 – Rough ac tone, not filtered |
|
4 – Readable without difficulty |
4 – Fair signals |
4 – Rough note |
|
5 – Perfectly readable |
5 – Fairly good signals |
5 – Strong ripple |
|
|
6 – Good signals |
6 – Trace of ripple |
|
|
7 – Moderately strong signal |
7 – Near pure tone |
|
|
8 – Strong signal |
8 – Near perfect tone |
|
|
9 – Extremely strong signal |
9 – Perfect tone |
|
Voice |
Code |
Situation |
|
Go Ahead |
K |
Used after calling CQ, or at the end of a transmission, to indicate any station is invited to transmit. |
|
Over |
AR |
Used after a call to a specific station, before the contact has been established. |
|
|
KN |
Used at the end of any transmission when only the specific station contacted is invited to answer. |
|
Stand By |
AS |
A temporary interruption of the contact. |
|
Roger |
R |
Indicates a transmission has been received correctly and in full. |
|
Clear |
SK |
End of contact. SK is sent before the final identification. |
|
Leaving the Air |
CL |
Indicates that a station is going off the air, and will not listen or answer any further calls. CL is sent after the final identification. |
|
Code |
Meaning |
Code |
Meaning |
|
QRL |
Are you (or the frequency) busy? |
QRZ |
Who is calling? |
|
QSL |
Can you acknowledge receipt? |
QSM |
Shall I repeat last message? |
|
QRO |
Shall I increase power? |
|
|
|
QRP |
Shall I decrease power? |
QRM |
Am I being interfered with? |
|
QRQ |
Shall I send faster? |
QRN |
Are you troubled by static? |
|
QRS |
Shall I send slower? |
QSB |
Are my signals fading? |