Table 4-2.—Prowords PROWORD EXPLANATION EQUIVALENT TO ACKNOWLEDGE An instruction to the addressee that the message must be acknowledged. ZEV (ACK) ADDRESS GROUP The group that follows is an address group. — ALL AFTER The portion of the message to which I have reference is all that which AA f o l l o w s    . ALL BEFORE The portion of the message to which I have reference is all that which A B p r e c e d e s . ANSWER AFTER The station called is to answer after call sign when answering ZGO transmissions. ASSUME CONTROL   You will assume control of this net until further notice. ZKD AUTHENTICATE The station called is to reply to the challenge which follows. INT ZNB AUTHENICATION The transmission authentication of this message is . ZNB IS BREAK I hereby indicate the separation of the text from other portions of the BT message. BROADCAST Link the two nets under your control for automatic rebroadcast. — YOUR NET CALL SIGN The group that follows is a call sign. — CLOSE DOWN Stations are to close down when indicated. Acknowledgements are Z K J required. CORRECT You are correct, or what you have transmitted is correct. C CORRECTION An error has been made in this transmission. Transmission will continue EEEEEEEE with the last word correctly transmitted . An error has been made in this transmission Ior message indicated). C The correct version is . That which follows is a corrected version in answer to your request for C verification. DISREGARD THIS This transmission is in error. Disregard it. (This proword is NOT to be EEEEEEEE TRANSMISSION-OUT    used to cancel any message that has been completely transmitted an for which receipt or acknowledgment has been received.) DO NOT ANSWER Stations called are not to answer this call, receipt for this message, or F otherwise transmit in connection with this transmission. When this proword is employed, the transmission shall be ended with the proword O U T . EXECUTE Carry out the purpose of the message or signal to which this applies. (To IX (5 sec dash) be used only with the executive method.) EXECUTE TO Action on the message or signal which follows is to be carried out upon IX FOLLOW receipt of the proword EXECUTE. (To be used only with the delayed executive method.) EXEMPT The station(s) immediately following is (are) exempted from the collective XMT call or from collective address. FIGURES Numberals or numbers follow. — 4-17