Furuno 1830 - Specifications of Model 1830; Scanner Unit; Display Unit; Transceiver Module

SPECIFICATIONS OF MODEL 1830
SCANNER UNIT
1. Radiator: Slotted Waveguide Array (housed in radome)
2 . Radiator Lenqth: 54ciii
3. Horizontal Beamwidth; 4®
4. V ertical Seamwidth; 25*’
b. Sideiobe Attenuation:
Withfn + 20® of mainlobe:
Olitside + 20® of mainlobe:
6. Polarization:
7. Antenna Rotation:
-18dB or less
-23(i6 or less
Horizontal
24 r.p.m. nominal
TRANSCEl^ER MQDULE (contained in radome)
1. Transmi tting Tube: Mayiietron 9M302/E3513
2. Frequency & Modulation: 9410MHz + 30MHz, PON
3. Peak Output Power: 3kW nominal
4. Pulselength & Pulse Repetition Rate:
Iteiir Range^J^)
0.25 0.5 0.75
Pulse Repetition Rate
Approx. 2100Hz
Approx. 12D0Hz
- ' ■
Approx. 600Hz
Pulselength
0.08US (Short)
0.3us (Mid.)
O-Sus (Long)
—-i--— 1.
5. Modulator:
6. I.F.:
7. Tuning:
0. Receiver Front End:
9. Bandwidth:
10. Duplexer;
FET Switching Method
60MHz
Manual
MIC (Mfcrowave IC)
7MHz (short/mid. pulses)
3MHz (long pulse)
Circulator with diode limiter
DISPLAY UNIT
1. Indication System:
2 . Picture Tube;
3. Range (nm):
4. Range Ring Interval
5. Number of Rings:
6. Bearing Resolution:
7. Bearing Accuracy:
Raster scan, Oayiight display
10-inch rectangular CRT
0.25 '
0.5
0.75
1.5
3
6
12 24
U.U5 U.i
'0.25
0.25
0.5
1
2 4
5
5
3 j
6
6
i-
“6“
6
6
4.5®
Better than 1°
I