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TUTORIALS RANGE 1 NM RADIO WAVES RR 0.25 NM ANTISEA WORKBOOK 000 030 330 EQUIPMENT TEXT LEFT CLICK TO BROWSE PLOTTING TEXT 060 300 EXERCISES TUNING RADAR RADAR EYE DEMONSTRATOR 120 240 TUNING 150 210 180 FALSE ECHOS OR USE SHORTCUT BUTTONS NAVIGATION HEAD UP DISPLAY PLOTTING NAVIGATION COLLISION AVOIDANCE RADAR TRAINER START EXIT (Ranger Hope © 2005) NET LINKS STARPATH GRAFTON RADAR WILLIAMSTOWN THE RADIO WAVE This presentation contains images courtesy of “Radar Master 5, National Module Code:ABF 534”. Australian National Training Authority ©1997 RADAR WAVES TRAVEL AT 160000 NM/SEC OR 300 MILLION MT /SEC SPEED =WAVELENGTH X FREQUENCY RADAR WAVES TRAVEL 300 MTRS IN A MICROSECOND 300 = 0.03 X 10000 300 = 0.1 X 3000 TUNING A TO Z TUNING METHOD BRILLIANCE GAIN HEADING MARKER CHECK RANGE TUNING SCAN RANGES for targets ANTI SEACLUTTER check RETUNE as radar warms up PRESS POWER ON TO WARM UP PRESS SCANNER ON 000 030 330 060 300 PRESS 090 270 120 240 150 210 SELECT BRILLIANCE 180 TO LEVEL REQUIRED 000 030 330 060 300 090 270 120 240 INCREASE GAIN 150 210 180 until timebase covers the screen 000 030 330 060 300 090 270 120 240 150 210 180 INCREASE GAIN But don’t overdo it 000 030 330 060 300 090 270 120 240 INCREASE GAIN 150 210 180 until timebase reaches edge 000 030 330 060 300 090 270 120 240 150 210 180 CHECK FOR TARGETS Under heading marker 8NM 2NM RR 000 030 330 060 300 090 270 120 240 RANGE RINGS ON 150 210 180 8NM 2NM RR 000 030 330 060 300 090 270 120 240 150 210 180 TUNE FOR MONITORS BEST LEVEL 8NM 2NM RR 000 030 330 060 300 090 270 120 240 150 210 180 USE ANTI-SEA CLUTTER CAREFULLY 000 030 330 060 300 090 270 120 240 CHECK TARGETS CLOSING ON THE EBL 150 210 180 BACK NOW TRY THE DEMONSTRATOR MUTUAL INTERFERENCE A small pulse transmitter is mounted on the beacon which is triggered by the vessels radar pulse. The mark will be displayed on the screen only intermittently. The true echo of the beacon will appear on the screen in front of the identification signal. Ramarks transmit pulses continuously or to special time schedules, rather than on receipt of a vessel’s radar pulse. SARTS detect the incoming radar pulse from a searching aircraft or ship and respond by transmitting a distinctive signal of 12 blips extending approximately 8 nautical miles outward from the SART’s position. •SHIPS HEAD UP •RELATIVE MOTION •UNSTABILISED DISPLAY •NORTH UP •TRUE MOTION •STABILISED DISPLAY NU EBL 330 TM 270T TRUE MOTION TM 285T TARGET DISPLAY ON CHANGING OWN COURSE 270T TO 300T 270T RELATIVE EBL 315 MOTION 285T SHU DISPLAY UNSTABILISED TRUE MOTION THE HEADING MARKER REMAINS RELATIVE MOTION 300T TM STILL. THE TARGET BLURS AS EBL 300 300T OWN SHIP TURNS & THEN SETTLES ON THE WIDER RELATIVE ANGLE (EBL) TM TARGET DISPLAY ON CHANGING OWN COURSE 270T - 300T TRUE MOTION NU HM EBL 240 RELATIVE TM MOTION NU NU DISPLAY HM STABILISED EBL 240 TRUE MOTION TM HM MOVES TO FOLLOW COURSE CHANGE & TARGET TRACE IS STATIC RELATIVE NU HM EBL 240 MOTION RELATIVE MOTION N 000 SHU Other vessel stopped 000 SHU 000 SHU A COLLISION AVOIDANCE THE SS STOCKHOLM (BELOW) COLLIDED WITH THE SS ANDREA DORIA WITH THE LOSS OF 52 CREWMEN DESPITE A RADAR WATCH. IT WAS TO BE LATER CALLED THE FIRST: RADAR ASSISTED COLLISION READ HER STORY DECREASING RANGE ON THE SAME EBL WARNS OF COLLISION 000 030 330 060 300 090 270 120 240 CHECK TARGETS CLOSING ON THE EBL 150 210 180 BACK CPA &TCPA WO 330 WAY OF OWN WAY OF ANOTHER ASPECT EXERCISES & ASSIGNMENTS EXERCISE 1. OPERATION EXERCISE 2. TRANSMISSION EXERCISE 3. FALSE ECHOS ASSIGNMENT 4. THEORY PLOTTING SHEET EXERCISE 5. NAVIGATION PRACTICAL 1 EXERCISE 6. RULES PRACTICAL 2 EXERCISE 7. PLOTTING CHECK YOUR PROGRESS ASSIGNMENT 8. STARPATH START EXIT Ranger Hope © 2004