Signalman 1 & C - Historic Naval Ships Association

circle to the beach. The last 1,000 yards to the beach Reporting it to PCS (ALFA)is run at full (battle) speed. However, the control group " , THIS IS TWO BLUE ONE. REPORTINGcommander should ensure that wave one never arrives FOR CONTROL AND VECTOR TO THEearly, because of the hazards from pre-H-hourBEACH. OVER.”neutralization fires, the difficulty of terminating suchfires early, and the necessity for beach preparation by Positive controlsuch fires.To obtain full benefit from the grid and to trackthe wave's progress, wave commanders will plot theirposition each time the controlling station transmits it.The effects of wind and sea and/or taking incorrectheadings can thus be determined and corrected. Oncefirm radio communications are established, gridpositions can be transmitted without requiring wavecommanders to receipt. However, vectors should bereceipted for. If the wave commander fails to receiptfor orders by radio, the primary control ship willcontinue to transmit “blind” and request visualacknowledgment.COMMUNICATION CIRCUITSTwo nets are designated for each colored beach:channels ALFA and BRAVO. Channel ALFA is adirect net, used by the PCS to pass grid positions andboat wave directions to the BWCs and wave guideofficer from the LOD until touchdown. ChannelBRAVO, the beach boat operations net, is used by thePCO/PCS and ships to control assigned boats beforethey are dispatched to the beach. Touchdown reportsand operational/administrative traffic between controlships and boats are passed on to this station. Goodjudgment should be used when using the net, to avoidcluttering.Voice CallsVoice calls on the control group net and beach boatoperation net use daily changing call signs. The beachboat control net uses JANAP 119 call signs.Additionally, the boat group commander uses theJANAP 199 call signs on all nets to avoid confusionwith wave call signs.Voice TransmissionsThe following are examples of voice transmissions:Turnover from parent ship to PCS (channel BRAVO)"ONE, THIS IS SWITCH TOCHANNEL ALFA AND REPORT TO FORCONTROL AND VECTOR TO THE BEACH.OVER.”“TWO BLUE ONE, THIS IS HOLD YOUUNDER POSITIVE RADAR CONTROL. STEERCOURSE AND SPEED FOR THE LOD.SET AND DRIFT AT THE LOD IS (DIRECTION)AND (SPEED, IN KNOTS). OVER.”“TWO BLUE ONE, THIS IS . DO NOT HOLDYOU UNDER POSITIVE RADAR CONTROL.MAINTAIN PRESENT COURSE AND SPEED(POSITION). OVER.”“ONE BLUE ONE, THIS IS HOLD YOUUNDER POSITIVE RADAR CONTROL.STEER COURSE AND SPEED FORTHE LOD. SET AND DRIFT AT THE LOD IS(DIRECTION) AND (SPEED, IN KNOTS). MYINTENTION IS TO EXECUTE A LEFT(RIGHT) FLANKING MOVEMENTSEAWARD OF THE LOD. OVER.”Dispatch from LOD“TWO BLUE ONE, THIS IS . YOU AREDISPATCHED FROM THE LOD TO THEBEACH. STEER COURSE , SPEED .OVER.”LOD crossing report (control group net), THIS IS . TWO BLUE ONE CROSSEDLOD LATE ONE HALF. OVER.”Grid posits (ALFA)“TWO BLUE ONE, THIS IS . GRID POSITROMEO THREE EIGHT OUT.” (Wave 2 Blue 1is right side of boat lane, 3,800 yards from the beachand on time.)TWO BLUE ONE, THIS IS GRID POSITROMEO THREE TWO EARLY ONE. OUT.”(Wave 2 Blue 1 is right side of boat lane, 3,200 yardsfrom beach and is ahead of schedule 1 minute.)Vectoring waves (ALFA)“TWO BLUE ONE, THIS IS GRID POSITROMEO THREE ZERO EARLY ONE. VECTORLEFT TEN. OVER.” ” TWO BLUE ONE, THIS ISGRID POSIT ROMEO, ROMEO TWOSEVEN EARLY ONE. VECTOR LEFTTWENTY. OVER.”12-20