Table 1-4.—Frequently Used PMSV Radiotelephone Prowords and Meanings ACKNOWLEDGE ALL AFTER CORRECT CORRECTION FIGURES I SPELL OUT OVER ROGER SAY AGAIN THIS IS TIME WAIT WAIT, OUT WILCO An instruction to the receiver that the transmission must be acknowledged. Reference  all  of  a  transmission  after  the  word  or  phrase  given. What   you   have   transmitted   is   correct. I   have   made   an   error   and   the   correct   information   follows. Numerals   or   numbers   follow. The  next  word  will  be  spelled  out  phonetically. This   is   the   end   of   the   transmission,   no   reply   is   expected. This is the end of my transmission at this time, your reply is necessary. I   have   received   your   transmission   satisfactorily. Repeat   the   last   transmission. This transmission is from the station whose call sign immediately follows. That  which  immediately  follows  is  the  date-time  group  of  the  message. I  must  pause  for  a  few  seconds. I must pause longer than a few seconds and will recontact you by call sign. I have received your signal, understand it, and will comply. Since the meaning of ROGER is included in that of WILCO, the two prowords are never used together. WRONG Your last transmission is incorrect; the correct version follows. unparen ( ) ), slant ( / ), quote or unquote ( " ), hyphen (- in a hyphenated word), colon  (:), semicolon (;), and dash (-) when used between numbers or letters and numbers. Numbers are always pronounced as follows: ZE-ro, Wun, Too, Tree, FOW-er, Fife, Six, SEV-en, Ait, and NIN-er. Letters are always pronounced, when spelling out a word, by using the ICAO international phonetic  alphabet  (AL-fah,  BRAH-VOH,  CHAR-lee, etc.).  You  studied  the  international  phonetic  alphabet  in the  Basic  Military  Requirements  training  manual,  and  a copy is provided on the first or second page of each DOD  FLIP  IFR  Supplement. therefore classified, the PMSV operator must have access to the ship’s latest observations and TAFs. The ship’s TAF, by itself, is usually not classified since it does not provide the ship’s position. Weather observers, even in nonsecure work areas, may obtain and keep a sanitized copy of the ship’s observation and forecast handy for ready reference. A sanitized copy means that the ship’s name, all references to locations, and message routing indicators have been deleted. When passing U.S. Navy ship weather updates to aircraft via PMSV, do not mention the ship’s position or Pilots transiting from coastal air stations to U.S. naval ships operating off the coast commonly call via PMSV for updates on the latest observation and forecast for "USS SHIP." Since relating the name of a U.S. naval ship to its location, or even the fact that a certain ship is operating in the area is usually classified, the pilot may not ask for the weather for the ship by name. It is essential that military observers or, at least, the duty forecaster keep informed of the naval ships operating within  their  area  of  responsibility  (AOR).  Additionally, although the weather observations from the ships contain the ship’s location and identification, and are the name of the ship. Also, do not discuss expected arrival time of the aircraft at the ship, since this would give hostile forces a good estimate of the ship’s distance from shore. Rest assured, the pilot can find the ship and knows within minutes when his aircraft will be arriving. You may have to read an entire TAF forecast over the radio  to  prevent  giving  away  the  flight  duration. In addition to the communication systems we have just discussed, several communications systems or subsystems  are  designed  especially  for  shipboard  or mobile operations. Some of the systems are intended primarily  for  environmental  communications,  while 1-27