Code	Meaning	For Example:
AR	End of message	G1 DE G2 AR
AS	Stand by or Wait	G1 DE G2 PSE AS
BK	Break	used to invite a quick response
BT (=)	Separator (pause) in text	a separator between thoughts
CL	Clear	terminating contact and leaving frequency
CQ	General call - all stations	CQ CQ  DE G1 G1 K
DE	From	G1 DE G2 KN
K	Go ahead (invite a station to transmit)	G1 DE G2 K
KN	invite named station only to transmit	G1 DE G2 KN
R	all received OK	G1 DE G2 R FB John ..
SK (or VA)	clear .. listening for other stations	G1 DE G2 SK (ends last over)