Two-frequency Color Scanning Sonar JFS-3721

  • fishing

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Discontinued Products

Specifications / Components

Standard Components

Item Model Q'ty Weight Remarks
Display Unit NWU-179E 2 32kg English
Transducer Unit NKF-3371 1 1,200kg 1,600-stroke
Transceiver Unit NTB-10 1 65kg Assembled into the transducer unit
NTB-11-1 1 67kg
Spare Parts 6ZXBS00172 2sets - For Display Unit
6ZXBS00155 2sets - For Transceiver

Specifications

Display Display type PPI display by 14-inch color CRT
Display
colors
15 colors for each signal level x 8 types
Background
colors
5 colors
Display
modes
(1)Normal
(2)Off center
(3)Horizontal plane / Cross-section image
(4)Horizontal plane / Audible sound image
(5)Horizontal plane / Fish finder image
Distinguishing
markers
Own ship, heading line (stem line), cursor, sound detection, alarm, fish shoal quantity, ship's wake, event, school of fish, north, tidal current vector, eight-point direction indicators, distance, angle of depression, hoisting, and transmission
Numerical
value display
Scan information (range, sensitivity, tilt angle)
Cursor information (horizontal distance, azimuth, vertical distance)
Fish shoal information (direction, distance, depth, speed and direction of migration)
Quantity of the fish shoal, ship's position, ship speed, ship course, water depth, water temperature, tidal current
Other
functions
Recovery function, quantity of the fish shoal, fish shoal alarm, automatic fish shoal tracking, split display (audible sound/cross-section/fish finder), automatic tilting angle control
Range Sonar range manual 14 stages setting in 125m to 3,200m ranges.
(capable of displaying measurements in units of feet, fathoms, or Passi/Braza)
Sound
detection
Components Built-in speaker 1kHz:2W
Detection
range
Manual turning sound detection / Automatic turning sound detection / Automatic turning radius / Swivels 20, 40, 80, or 120 degrees
Transceiver Transmission
frequency
28kHz band and 90kHz band
Output
reduction
Continuous and variable
Transmission
pulse length
2mS to 32mS (interlocked with range)
Reception
method
360 degree all-round electronic scanning
Angle of depression range -50 to +60 degrees, electronic
Transducer Stroke 1,600mm
Up-and-
down cycle
time
less than 28 seconds
maximum
ability speed
13 knots during up-and-down movement
External input Gyrocompass (synch. /step signal / NMEA format)
Speed log (distance counter signal / NMEA format)
Tidal current meter (JRC format)
Water thermometer (NMEA format / JRC format)
Navigation equipment (NMEA / JRC format)
Power supply and
consumption
100VAC 1-ph 50/60Hz:2.0kVA
220VAC 3-ph 50/60Hz:1.5kVA
Note: In order to use *marked function and display, it is necessary to connect the device to external sensors and equipment such as navigation equipment.
Note: The fish shoal quantity display is a function that displays the relative strength of echo signals numerically.