Table  4-2.—Prowords—Continued PROWORD EXPLANATION EQUIVALENT TO FLASH Precedence FLASH. Z FROM The originator of this message is indicated by the address designator FM immediately following. GRID The portion following is a grid reference. — GROUPS This message contains the number of groups indicated by the numeral GR following. GROUPS NO The groups in this message have not been counted. GRNC COUNT I AM ASSUMING I am assuming control of this net until further notice. ZKA I AUTHENTICATE The group that follows is the reply to your challenge to authenticate. ZNB IMMEDIATE Precedence IMMEDIATE. O IMMEDIATE Action on the message or signal following is to be carried out on receipt of IX EXECUTE the word EXECUTE. (To be used only with the immediate executive method.) INFO The addressees immediately following are addressed for information. INFO I READ BACK The following is my response to your instructions to read back. — I SAY AGAIN I am repeating transmission or portion indicated. IMI I SPELL I shall spell the next word phonetically. — I VERIFY That which follows has been verified at your request and is repeated. (To C be used only as a reply to VERIFY.) MESSAGE A message that requires recording is about to follow. (Transmitted ZBO immediately after the call. This proword is not used on nets primarily employed for conveying messages. It is intended for use when messages are passed on tactical or reporting nets.) MORE TO FOLLOW    Transmitting station has additional traffic for the receiving station. B NEGATIVE (NEGAT)   Cancel message(s) sent by the delayed executive method. (NEGAT may — be used to cancel a single message or a group of messages awaiting execution.) NET NOW All stations are to net their radios on the unmodulated carrier wave that I ZRC 2 am about to transmit. NOTHING HEARD To be used when no reply is received from a call station. ZGN NUMBER Station serial number. NR OUT This is the end of my transmission to you, and no answer is required or AR expected. OVER This is the end of my transmission to you, and a response is necessary. Go NR ahead, transmit. PRIORITY Precedence PRIORITY. P READ BACK Repeat this entire transmission back to me exactly as received. G REBROADCAST Link the two nets under your control for automatic rebroadcast. — YOUR NET 4-18