INTRODUCTION .........................................................................................................................................vi

Specifications of FR-1500 Mark-3 Series shipborne radar.......................................................................ix

1 OPERATIONAL OVERVIEW................................................................................................................1.1

1.1 Turning on the Power ...........................................................................................................................1

1.2 Transmitter ON.....................................................................................................................................1

1.3 Control Description ...............................................................................................................................2

1.4 CRT Brilliance ......................................................................................................................................3

1.5 Control Panel Backlighting....................................................................................................................3

1.6 Tuning the Receiver..............................................................................................................................3

1.7 Degaussing the Screen ........................................................................................................................4

1.8 Initializing the Compass Readout ..........................................................................................................4

1.9 Entering Own Ship's Speed ..................................................................................................................5

1.10 On-screen Legends and Markers........................................................................................................6

1.11 Presentation Modes............................................................................................................................7

1.12 Selecting the Range Scale................................................................................................................10

1.13 Selecting the Pulselength .................................................................................................................10

1.14 Adjusting the Sensitivity....................................................................................................................11

1.15 Suppressing Sea Clutter ...................................................................................................................11

1.16 Suppressing Precipitation Clutter ......................................................................................................12

1.17 Interference Rejector ........................................................................................................................12

1.18 Measuring the Range .......................................................................................................................13

1.19 Measuring Bearing............................................................................................................................14

1.20 Collision Assessment by the Offset EBL ...........................................................................................14

1.21 Measuring Range and Bearing Between Two Targets.......................................................................16

1.22 Setting a Target Alarm Zone .............................................................................................................17

1.23 Off-centering (shift)...........................................................................................................................18

1.24 Echo Averaging ................................................................................................................................19

1.25 Electronic Plotting Aid (EPA).............................................................................................................21

1.26 Target Trails (Echo Trails).................................................................................................................24

1.27 Parallel Index Lines ..........................................................................................................................27

1.28 Reference Mark (not available with Video Plotter RP-17 or RP-180)..................................................27

1.29 Zoom (R-type only)...........................................................................................................................28

1.30 Markers ............................................................................................................................................29

1.31 Suppressing Second-trace Echoes ...................................................................................................30

1.32 [F1] Key............................................................................................................................................30

1.33 [F2] Key............................................................................................................................................31

1.34 FUNCTION Key................................................................................................................................32

1.35 Adjusting Brilliance of Screen Data ...................................................................................................34

1.36 Echo Stretch, Contrast, Enhanced Video ..........................................................................................35

1.37 Watch Timer.....................................................................................................................................36

1.38 Noise Rejector..................................................................................................................................37

1.39 Navigation Data................................................................................................................................37

1.40 Alarm Output (R-type only) ...............................................................................................................37

1.41 Outputting Target Position (R-type only) ...........................................................................................37

1.42 Degaussing Interval ..........................................................................................................................38

1.43 Background Color.............................................................................................................................38

1.44 Clutter Sweep...................................................................................................................................38

1.45 Day, Night Brilliance .........................................................................................................................39

1.46 Contrast............................................................................................................................................39

1.47 Radar Map (RP-17 or RP-180 required)............................................................................................40

1.48 Alarms..............................................................................................................................................44

1.49 Enlarging Close-in Targets (R-type only)...........................................................................................46

1.50 A/D Converter Curve Setting (R-type only)........................................................................................46

1.51 Echo Area (R-type only)....................................................................................................................47