light differs from that laid down for the directional flashing light, as follows: 1. The call consists of a collective call sign or a number  of  call  signs  repeated  until  answered  by  all receiving   stations. 2. Each receiving station answers by transmitting a continuous series of Ks until the calling station, seeing that all the receiving stations have answered, stops calling, waits a short time, then starts transmitting the message.  When  practicable,  receiving  stations  should use a directional light of minimum brilliance. 3. Where repeating ships are used, they will repeat the  originator's  transmission  word  by  word  as  received. 4.   During   transmission   of   the   message,   all receiving stations keep their signal lights out. Should a receiving station miss a portion of the message, that station is to request a repetition in the normal manner upon completion of the transmission. A station that is repeating the message as received but misses a portion may substitute the operating signal ZEP for the missing portion  and  proceed  with  the  transmission.  When  the missing portion is obtained, it is transmitted in the form of  a  correction. ZEP  means  this  portion  (or  message)  was incompletely  received.  Each  word  or  group  missed, which  is  indicated  by  the  position  of  ZEP  in  the message, will be forwarded as soon as obtained. 5. Receiving stations, after checking, receipt for the message by making RRRR. 6.  When  the  prosign  F  is  used  in  the  non- directional procedure, no ship is to make any response to this call or to receipt for the message. Ships that miss the transmission or any portions thereof may request repetitions by directional flashing light from adjacent ships. In requesting such repetitions, ships should bear in  mind  the  danger  of  disclosing  the  tactical composition of the formation. 7. The separative sign is used between coded groups. Where  a  special  non-directional  daylight signaling lantern (DSL) is fitted, the procedure to be used  by  the  transmitting  station  is  the  same  as prescribed   for   the   non-directional   procedure. Receiving   stations   answer   by   hoisting   DESIG. Repetitions are obtained in the same manner as for the non-directional procedure. The message is receipted for by hauling down DESIG. CALLING When calling another station, you are responsible for certain details. In visual communications, the identity of the calling station is usually apparent, and it is necessary only to gain the attention of the station being called. Normally this is done by directing the signal  light  at  the  station  and  making  the  receiving station's call sign until answered When it is desirable to identity the calling station, use the full call. This consists of the call sign of the station called, and when answered, the prosign DE and the call sign of the calling  station.  On  occasion,  when  using  the no-response procedure, it may be necessary for you to transmit the full call before or without being answered Examples:  Abbreviated  call—D15  (until answered) Full call—D15 (until answered) DE A22 or D15 DE A22 Collective  or  multiple  calls  may  be  used  as required. A collective call sign consists of a single call sign representing more than one station: C Squad 2. A multiple call may consist of two or more individual or collective calls: C Squad 2 C40. Both collective and multiple calls may be followed by the prosign DE and the call sign of the calling station. Call signs and address groups that may be used in the heading and/or ending are visual call signs from ACP  129,  call  signs  from  ACP  113,  and  address groups from ACP 100. The  call  may  serve  as  the  address.  When abbreviated  calls  are  used,  it  is  assumed  that  the message is addressed from and to the senior officer embarked. When this is not the case, use a full call or the address component. ANSWERING AND RECEIPTING The answer normally consists of the prosign K. The calling station may flash for the series of Ks from each unit until all units have responded. If necessary to  distinguish  which  of  several  stations  is  being answered, the prosign K should be preceded by the call sign of the station answered. Where more than one station is being called in the same direction or during low visibility, the answering station may need to indicate its own identity when answering.  This  is  done  by  transmitting  the  prosign DE followed by own call sign and prosign K. 4-5