Onwa Marine Electronics KR-1338C v.1 - Manual (Page 10)

KR-1338 SPECIFICATION
ANTENNA UNIT
1. Radiator : Slotted waveguide array
2. Radiator length : 55 cm
3. Horizontal beamwidth : 4
4. Vertical beamwidth : 25
5. Sidelobe :
Within
20 off mainlobe; less than -18 dB
Outside 20 off mainlobe; less than -23 dB
6. Polarization : Horizontal
7. Antenna rotation speed : 24 rpm(
2)
8. Wind resistance : Relative wing speed 100 knots(51.5 m/s)
TRANSCEIVER MODULE
(contained in radome)
1. Transmitting tube : MSF1421B or MAF1421B
2. Frequency : 9410 MHz
30MHz
3. Peak output power : 4kW nominal
4. Pulselength & pulse repetition rate :
0.08
S, 2100 Hz (0.125, 0.25, 0.5, 0.75, 1.5nm)
0.3 S, 1200 Hz (1.5, 2, 3nm)
0.8 S, 600 Hz (3, 4, 6, 8, 12, 16, 24, 36nm)
5. Warm up time : 1:30 minutes
6. Modulator : FET switching method
7. I.F. : 60MHz
8. Tuning : Automatic or manual
9. Receiver front end : MIC (Microwave IC)
10. Bandwidth :
Tx pulselength 0.3
S and 0.08 S : 25MHz
Tx pulselength 0.8 S : 3MHz
11. Duplexer : Circulator with diode limiter
2