With navigation input (option): Course (CRS), Latitude and longitude, Speed (SPD), Range and bearing to waypoint (WP), Cross Track Error (XTE), Date and time, Water depth, Water temperature. (This radar has
only two data input ports. To receive data from more than two equipment install an mixing device.)
11. Vibration |
|
Vibration freq. | Total amplitude |
5 to 12.5 Hz | ±1.6 mm |
12 to 25 Hz | ±0.35 mm |
25 to 50 Hz | ±0.10 mm |
12.Ambient Temperature Antenna unit:
Due to the inherent nature of the LCD its contrast may be affected under ambient temperature below 0˚C (32˚F) or above 50˚C (122˚F).
13.Humidity
Relative humidity 95% or less at +40˚C
14.Waterproofing
Display unit: IEC Pub no. 529 IPX5
Antenna unit: IEC Pub no. 945 class X
15.Power supply & power consumption
12 V or 24V(10.2 V to 31.2 V DC),
40 W approx.
16.Protection features
Protection against reverse polarity, overvoltage, overcurrent, and internal fault
17.Compass safe distance
Unit | Standard | Steering |
| compass | compass |
|
|
|
Display | 0.7 m | 0.5 m |
|
|
|
Antenna | 1.7 m | 1.4 m |
|
|
|
SPECIFICATIONS– MODEL 841
Antenna Unit
1.Radiator Printed array
2.Radiator length 54 cm
3.Horizontal beamwidth 4°
4.Vertical beamwidth 25˚
5.Sidelobe
6.Polarization Horizontal
7.Antenna rotation speed 24 rpm
8.Wind resistance
Relative wind speed 100 kts (51.5 m/s)
Transceiver Module (contained in radome)
1.Transmitting tube Magnetron MG5248
2.Frequency
9410 MHz ±30MHz, P0N (X band)
3.Peak output power 4 kW
4.Pulselength & pulse repetition rate 0.08μs, 2100 Hz (0.25, 0.5, 0.75 nm) 0.3μs, 1200 Hz (1, 1.5, 2 nm)
0.8μs, 600 Hz (3, 4, 6, 8, 12, 24, 36 nm)
5.Warm-up time 2:30
6.Modulator switching method
FET
7.I. F.
60 MHz
8.Tuning
Automatic or manual
iv
