Display Unit - Furuno GD-1900C Manuel D'utilisation

2.3. MODEL1943C:
2.3.1. Radiator
2.3.2. Polarization
2.3.3. Antenna Rotation
2.3.4. Radiator Length
2.3.5. Horizontal Beamwidth 1.9°
2.3.6. Vertical Beamwidth
2.3.7. Sidelobe Attenuation
3. TRANSCEIVER MODULE
3.1. Frequency and Modulation 9410 MHz ±30MHz (X band), P0N
3.2. Peak Output Power
3.3. Modulator
3.4. Intermediate Frequency 60 MHz
3.5. Tuning
3.6. Receiver Front End
3.7. Bandwidth
3.8. Duplexer
3.9. Warming up

4. DISPLAY UNIT

4.1. Display
4.2. Range, Range Ring Interval (RI), Number of Rings
Range (nm) 0.125
RI (nm) 0.0625 0.125 0.125 0.25 0.25 0.5 0.5 1 1 2 2 3 4 6 12 12 16
Rings 2
Maximum range: M1833C: 36nm, M1933C: 48nm, M1943C: 64nm
4.3. Markers
4.4. Alphanumeric Indications Range, Range Ring Interval, Interference Rejection (IR),
Slotted waveguide array
Horizontal
24 or 48 rpm nominal
High brilliance monitor: 24 rpm nominal only
120 cm (XN12)
22°
-24 dB or less (within ±20° of main-lobe)
-30 dB or less (±20° of main-lobe or more)
M1833C/1933C: 4 kW nominal,
M1943C: 6 kW nominal
FET Switching Method
Automatic or manual
MIC (Microwave IC)
Tx pulselength 0.08 µs and 0.3 µs: 25 MHz
Tx pulselength 0.8 µs: 3 MHz
Circulator with diode limiter
90 sec. approx.
10.4-inch rectangular TFT color LCD
640(H) x 480(V) dots, Effective radar display dia.: 152 mm
0.25 0.5 0.75
2 4 3
Heading Line, Bearing Scale, Range Rings,
Variable Range Marker (VRM), Electronic Bearing Line (EBL),
Alarm Zone, Waypoint Mark (navigation input required)
Variable Range Marker (VRM), Electronic Bearing Line (EBL),
Stand-by (ST-BY), Echo Averaging (EAV), TX Pulse width
SP - 2
1 1.5 2 3 4 6 8 12 16 24 36 48 64
4 3 4 3 4 3 4 4 4 4 3 4 4
E3503S02C