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SP - 1
SPECIFICATIONS OF MARINE RADAR
MODEL 1932/1942 MARK-2
1. GENERAL
(1) Indication System PPI Daylight display, raster scan, 8 tones in monochrome
(2) Range, Pulselength (PL) & Pulse Repetition Rate (PRR)
Range (nautical miles)
PL PRR 0.125 0.25 0.5 0.75 1 1.5 2 3 4 6 8 12 16 24 36 48 64
SP 2100 Hz 0.08 Ps
MP 1200 Hz 0.3 Ps
LP 600 Hz
*
0.8 Ps
*550 Hz on 48 nm range or more
Maximum Range; MODEL 1932 M2: 48 nm, MODEL 1942 M2: 64 nm
(3) Range Resolution 20 m
(4) Bearing Discrimination 1.9º
(5) Minimum Range 25 m (0.25 NM range)
(6) Bearing Accuracy Within 1º
(7) Bearing Resolution 4º
(8) Range Ring Accuracy 0.9 % of range or 8 m, whichever is the greater
2. SCANNER UNIT
(1) Radiator Slotted waveguide array
(2) Polarization Horizontal
(3) Antenna Rotation Speed 24 rpm or 48 rpm nominal
(4) Radiator Length M1932M2: 100 cm (XN10A), M1942M2: 120 cm (XN12A)
(5) Horizontal Beamwidth M1932M2: 2.4°, M1942M2: 1.9°
(6) Vertical Beamwidth M1932M2: 27°, M1942M2: 22°
(7) Sidelobe Attenuation Within ±20° of main-lobe: less than -24 dB
Outside ±20° of main-lobe: less than -30 dB
3. TRANSCEIVER MODULE
(1) Frequency 9410 MHz ±30MHz (X band)
(2) Modulation P0N
(3) Peak Output Power M1932M2: 4 kW nominal, M1942M2: 6 kW nominal
(4) Modulator FET Switching Method
(5) Intermediate Frequency 60 MHz
(6) Tuning Automatic or manual
(7) Receiver Front End MIC (Microwave IC)