Furuno 1715 - Manual (Page 40)

SP- 1
E3514S01B
SPECIFICATIONS OF MARINE RADAR
MODEL 1715
1 GENERAL
1.1 Indication System PPI daylight display, raster scan, 4 tones in monochrome
1.2 Range (shown: nm), Pulselength (PL) & Pulse Repetition Rate (PRR)
Range 0.125, 0.25, 0.5, 0.75 1, 1.5, 2 3, 4, 6, 8, 12, 16, 24, 36
Pulse Length 0.08 μs (short) 0.3 μs (medium) 0.8 μs (long)
Pulse Repetition Rate 3000 Hz nominal 1200 Hz nominal 600 Hz nominal
1.3 Range Resolution 18 m
1.4 Bearing Discrimination 5.2°
1.5 Minimum Range 30 m
1.6 Bearing Accuracy Within 1°
1.7 Range Ring Accuracy 1.0 % of range or 8 m, whichever is the greater
2 ANTENNA UNIT
2.1 Radiator Micro-strip
2.2 Polarization Horizontal
2.3 Antenna Rotation Speed 24/31/41 rpm nominal (auto-select according to range)
2.4 Radiator Length
45 cm
2.5 Horizontal Beamwidth 5.2° typical
2.6 Vertical Beamwidth 25°
2.7 Sidelobe Attenuation Less than -20 dB
3 TRANSCEIVER MODULE
3.1 Frequency 9410 MHz ±30MHz (X-band)
3.2 Modulation P0N
3.3 Peak Output Power 2.2 kW
3.4 Modulator FET Switching Method
3.5 Intermediate Frequency 60 MHz
3.6 Tuning
Automatic
3.7 Receiver Front End MIC (Microwave IC)
3.8 Bandwidth 15 MHz (short pulse), 5 MHz (medium/long pulse)
3.9 Duplexer Circulator with diode limiter
3.10 Warm-up Time 1-min. approx.
4 DISPLAY UNIT
4.1 Picture Tube 7” rectangular monochrome LCD
4.2 Display Pixels 240(H) x 320(V) dots,
Effective radar display area: 240x240 dots
4.3 Range, Range Interval, Number of Rings
Range (nm/km) 0.125 0.25 0.5 0.75 1 1.5 2 3 4 6 8 12 16 24 36
Ring Interval 0.0625 0.125 0.125 0.25 0.25 0.5 0.5 1 1 2 2 3 4 6 12
Number of Rings 2 2 4 3 4 3 4 3 4 3 4 4 4 4 3
Range unit: nm/sm/km selectable, 0.125: nm/sm only, 36: km only