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 or wait

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 or closing the station

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.