l-8
ST50 PLUS RADAR Operation and Installation Handbook
18) Features
Other Optional Features:
19)
Control Keys
(All push
bottons)
inputs:
Loran-C/GPS
Seatalk
Cursor, VRM, EBL, Interference Rejection,
Target Expansion, Target Alarms, LAT/
LONG or TD Readouts, Waypoint
t/L,
Off
Center/Zoom, Timed Transmit, Target
trails, Built in Simulator, Hold Mode, Auto
Gain, Auto STC, Auto FTC, Auto Tune
Raychart,
Seatalk
RANGE KEYS
,TUNE
KEYS
RAIN KEYS
SEA KEYS
GAIN KEYS
HOLD KEY
MENU KEY
GUARD KEY
EBL KEY
VRM KEY
CURSOR KEY
CTR/ZOOM KEY
CONT/DIM KEY
STBY/XMIT KEY
UP/DOWN
UP/DOWN
UP/DOWN
UP/DOWN
UP/DOWN
OFF/ON
OFF/ON
OFF/ON
OFF/ON
OFF/ON
OFF/ON
OFF/ON
OFF/ON
OFF/ON
A, v’,
4,
b,
DIRECTION KEYS
NMEA0183, must include GLL, GTD, VTG,
BWC, or RMA and RMB, or RMB and RMC
sentences for full function displays and
capabilities.
Magnetic Sensor NMEA 0183 HDM, HDT,
VHW or HSC, data sentences.
Wind Direction, Wind Velocity, Depth,
SOG/
COG, MTW, Position, Waypoint, Tide, etc.
20) Rear Panel Connectors:
Inter-unit (Ant.1
lo-pin
Power DC input/
4-pin
NMEA
Compass/Seaiaik
i-pin
Raychart
B-pin (option)
Section 1. Introduction
1.4.3 Radome Antenna
1)
2)
3)
4)
5)
6)
7)
8)
9)
Dimensions:
Weight:
Polarization:
Beam width:
Sidelobes:
Rotation:
Diameter of radome 450 mm (17.7’)
Height
227
mm (8.9’)
Base Dimensions
Front to end
270
mm
(10.6”)
Width
200
mm (7.9’)
Approx.
5.5
kg (12.1 Ibs)
Horizontal
Horizontal
6’ nominal
Vertical
25’ nominal
-21
dB
or greater (within +lO’)
Approx. 24 RPM
Drive motor input voltage:
Transmitter frequency:
Peak power output:
10) Transmitter device:
11) Pulse length/Pulse
repetition frequency:
12) Modulator:
13) Duplexer:
14) Mixer:
15) IF amplifier:
16) Noise figure:
17) Characteristic:
+12
VDC
9445k30
MHz
2.0
kW
Magnetron
(RMC-21
O.O8ps/2250
Hz
(0.125, 0.25, 0.5, 0.075
nm)
0.3
p/l200
Hztl,
1.5 nm)
0.8
p/600
Hz
(3,6,
12, 16 nm)
Solidstate modulator driving magnetron
T-junction with diode limiter
MIC front end
Center frequency
60
MHz
Bandwidth
7
MHz
Less than 10
dB
Linear
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