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SPECIFICATIONS OF MARINE RADAR
MODEL 1712
1. GENERAL
(1) Indication System PPI Daylight display, raster scan, 4 tones in monochrome
(2) Range, Pulse length (PL) & Pulse Repetition Rate (PRR)
Range (nm) Pulse length (µs) PRR (Hz
approx.)
0.125 to 0.75 0.12 2100
1 to 2 0.3 1200
3 to 24 0.8 600
(3) Range Resolution 29 m
(4) Bearing Resolution 5.7º
(5) Minimum Range 41 m
(6) Bearing Accuracy Within ±1º
(7) Range Ring Accuracy 0.9 % of range or 8 m, whichever is the greater
2. SCANNER UNIT (RSB-0087: STANDARD, RSB-0060: OPTION)
(1) Radiator Micro-strip
(2) Polarization Horizontal
(3) Antenna Rotation Speed 24 rpm nominal
(4) Radiator Length 41 cm (RSB-0087), 32 cm (RSB-0060)
(5) Horizontal Beamwidth less than 5.2° (RSB-0087), less than 6.2° (RSB-0060)
(6) Vertical Beamwidth 25°
(7) Sidelobe Attenuation less than -20 dB
3. TRANSCEIVER MODULE
(1) Frequency and Modulation 9410 MHz ±30MHz (X band), P0N
(2) Peak Output Power 2.2 kW nominal
(3) Modulator FET Switching Method
(4) Intermediate Frequency 60 MHz
(5) Tuning Automatic
(6) Receiver Front End MIC (Microwave IC)
(7) Bandwidth 7 MHz
(8) Duplexer Circulator with diode limiter
(9) Time of Heat-up 1 minute approx.