AA (Separation between parts of address or signature.).

AA All after (use to get fills).

AB All before (used to get fills).

ADEE Addressee (name of person to whom message addressed).

ADR Address (second part of message).

AR End of message (end of record copy).

ARL (Used with "check " indicates use of

ARRL numbered message in text).

AS Stand by; wait.

B More (another message to follow).

BT Separation (break) between address and text; between text and signature.

C Correct; yes.

CFM Confirm. (Check me on this).

CK Check.

DE From; this is (preceding identification).

HH (Error in sending. Transmission continues with last word correctly sent.)

HX (Handling instructions. Optional part of preamble.) Initial(s). Single letter(s) to follow.

IMI Repeat; I say again. (Difficult or unusual words or groups.)

K Go ahead; over; reply expected. (Invitation to transmit .)

N Negative; incorrect; no more. (No moremessages to follow.)

NR Number. (Message follows.)

PBL Preamble (first part of message).......

Read back. (Repeat as received.)

R Roger; point. (Received; decimalpoint.)

SIG Signed; signature (last part of message.)

SK Out; clear (end of communications no reply expected.)

TU Thank you.

WA Word after (used to get fills.)

WB Word before (used to get fills.) ......

Speak slower. ...... Speak faster.