KRA-1009_N (New!)

Radome Marine Radar Antenna

Brochures And Manuals

KRA-1009_N User Manual

Features

Digital Radar Target Technology
Share the same protocol between all ONWA magnetron pulse Radar antennas
Built-in excellent sea and rain clutter algorithm
Fully Digital Signal Processing
High Performance Microwave front end
Can be connected to PC directly or through home router
Can use ONWA Radar PC Software:

Connection

KRA-1009_N Connection:

Specifications

Antenna Radiator

Radiator

Slotted waveguide Array

Radiator Length

46 cm

Antenna Rotation Speed

Long Range (3~36nm): 24 RPM (±2)
Medium Range (1.5~ 3 nm): 36 RPM (±2)
Short Range (0.125~1.5 nm): 48 RPM (±2)

Wind Resistance

Relative wind speed 100 knots(51.5 m/s)

Beam Width

Horizontal 5°
Vertical 25°

Sidelobe

Within ± 20° off mainlobe; less than -18 dB
Outside ± 20° off mainlobe; less than -23 dB

Polarization

Horizontal

Transceiver Module (contained in Radome)

Transmitting Tube

MSF1421B or MAF1421B

Frequency

9410 ± 30MHz (X-band)

Pulse Length PPR

0.08 µ S/2100 Hz(0.125, 0.25, 0.5, 0.75, 1.5 nm)
0.3µ S/1200 Hz(1.5, 2, 3 nm)
0.8 µ S/600 Hz(3, 4, 6, 8, 12, 16, 24, 36nm)

Warm Up time

1:30 minutes

Peak Output Power

4 kW nominal

Modulator

FET Switching Method

60MHz

Tuning

Automatic or Manual

Receiver front end

MIC (Microwave IC)

Bandwidth

Tx pulselength 0.3 µ S and 0.08 µ S: 25 MHz
Tx pulselength 0.8 µ S: 3 MHz

Duplexer

Circulator with Diode Limiter

Environment

Temperature

Antenna unit: -25 to +70°C

Humidity

Relative humidity 93% or less at 40°C

Power Supply

10.5VDC to 40.0 VDC Built-in Power-Supply

+852 2557 8166