Furuno FR-1710 User Manual Page 72
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SPECIFICATIONS OF MARINE RADAR
FR-1710/1725/1760DS
1. ANTENNA RADIATORS
(1) Type Slotted waveguide array
(2) Polarization Horizontal
(3) Rotation 24 rpm or 42 rpm (FR-1760DS: 24 rpm only)
(4) Radiator length 4 ft (XN12AF), 6.5 ft (XN20AF), 8 ft (XN24AF)
8.1 ft (SN4A), 9 ft (SN5A)
(5) Horizontal Beamwidth
-3 dB: 1.8° (XN12AF), 1.23° (XN20AF), 0.95° (XN24AF)
2.68° (SN4A), 1.23° (SN5A)
-20 dB: 3.1° (XN12AF), 3.1° (XN20AF), 2.5° (XN24AF)
(6) Vertical Beamwidth 20°
(7) Sidelobe attenuation
XN12AF: -24 dB (within ±10° of main-lobe)
-30 dB (outside ±10° of main-lobe)
XN20AF/XN24AF: -24 dB (within ±20° of main-lobe)
-30 dB (outside ±20° of main-lobe)
SN4A: -23 dB (within ±20° of main-lobe)
-25 dB (outside ±20° of main-lobe)
SN5A: -20 dB (within ±20° of main-lobe)
-25 dB (outside ±20° of main-lobe)
(8) Antenna Gain XN12AF: 27.5 dB, XN20AF: 30.0 dB, XN24AF: 31.5 dB
SN4A: 26.0 dB, SN5A: 26.4 dB
(9) Wind Speed 51.5 m/s relative
2. RF TRANSCEIVER
(1) Frequency FR-1710/1725: 9410 MHz ±30 MHz
FR-1760DS: 3050 MHz ±30 MHz
(2) Output Power FR-1710: 10 kW, FR-1725: 25 kW, FR-1760DS: 60 kW
(3) Spurious Response -40 dB or less
(4) IF Amplifier 60 MHz, Logarithmic
(5) Bandwidth
FR-1710/1725: Short 1/2, Middle 1 pulse: 27 MHz
Middle 2/3, Long pulse: 3 MHz
FR-1760DS: Short pulse: 27 MHz
Middle 1/2, Long pulse: 3 MHz
- MARINE RADAR 1
- PUB. No. OME-34530 2
- FIRST EDITION : NOV. 1998 2
- L : APR. 9, 2001 2
- SAFETY INSTRUCTIONS 3
- ELECTRICAL SHOCK HAZARD 4
- TABLE OF CONTENTS 5
- INTRODUCTION 7
- SYSTEM CONFIGURATION 8
- FR-1710/1725 9
- MENU TREE 10
- OPERATIONAL OVERVIEW 15
- origin to measure range 16
- Figure 1-3 Main menu 17
- Figure 1-5 OTHER menu 17
- Figure 1-6 TUNE menu 18
- Figure 1-7 OTHER menu 18
- 9/22 19
- TEMP 20.1°C 19
- DEPTH 123.5M 19
- AUTO 19
- 1.10 Presentation Modes 20
- True Motion Mode 22
- Figure 1-9 OTHER menu 23
- Figure 1-10 Echo stretch 24
- Figure 1-11 How to adjust 26
- Figure 1-13 Interference 27
- Figure 1-14 ECHO SIG menu 27
- Figure 1-15 How to measure 28
- Figure 1-16 How to measure 29
- Figure 1-19 TGT ALARM menu 30
- Figure 1-20 Target alarm 31
- Figure 1-23 ECHO SIG menu 32
- Figure 1-24 Echo averaging 32
- will help for assessment 33
- Target data 34
- Terminating target plotting 34
- Setting CPA/TCPA alarm ranges 35
- Lost target alarm 35
- Past plot points 36
- True or relative trails 36
- Trail gradation 37
- Selecting trail time 37
- Restoring trails 37
- Resetting target trails 38
- Trail brilliance 38
- Thin trails 38
- Trail afterglow 38
- 1.27 Parallel Index Lines 39
- 1.28 Origin Mark 39
- 1.29 Zoom 40
- 1.30 Markers 40
- Figure 1-39 FUNC menu 41
- Figure 1-40 Function menu 41
- Table 1-2 FUNC key objectives 42
- Figure 1-41 FUNC menu 42
- Figure 1-42 FUNC1 menu 42
- 1.33 Suppressing Second-trace 43
- Echoes 43
- 1.34 Adjusting Brilliance of 43
- Screen Data 43
- 1.35 Noise Rejector 44
- 1.36 Time Alarm 44
- 1.37 Enhanced Video 44
- 1.38 Degaussing Interval 45
- 1.39 Navigation Data 45
- 1.40 Video Contrast 46
- 1.41 Clutter Sweep 46
- 1.43 Background Color 47
- 1.44 Selecting Range Scales 47
- 1.45 Selecting Bearing Scale 47
- Format 47
- 1.46 A/D Converter Curve 48
- Setting 48
- 1.48 Alarms 49
- 1.49 Peformance Monitor 50
- RADAR OBSERVATION 51
- 2.2 False Echoes 52
- 2.3 SART (Search and Rescue 53
- Transponder) 53
- Screen A: When SART 54
- is distant 54
- Screen B: When SART 54
- is close 54
- 2.4 RACON (Radar Beacon) 55
- MAINTENANCE, TROUBLESHOOTING 56
- 3.3 Fuse Replacement 58
- 3.4 Replacement of Batteries 58
- 3.5 Simple Troubleshooting 58
- Serviceman qualification 59
- Service call 59
- 3.7 Diagnostic Test 62
- PARTS LOCATION 65
- SPU Board 66
- FR-1760DS Scanner Unit 67
- FR-1760DS Power Supply Unit 69
- RF module (Upper part) 70
- Module (Lower part) 71
- FR-1710/1725/1760DS 72
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