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COLOR ECHO SOUNDER : JFV-250
♦ GENERAL
The newest model of the JFV series feature an new transducer, high resolution color display, ease of operation and other advanced functions that are most convenient for fishing operations.
♦ FEATURES
Clear Display
• The 14-inch color display has a higher resolution of 640 × 480 dots than the conventional models, offering more precise, clearer images with higher definition.
• Color display is selectable from 6 sets of 16 colors, 2 sets of 8 colors, one set of 16 or user-specified colors, and monochrome. Background color is selectable from 4 colors.
• The 16-color display presents fine, precise echo images, enabling fish density presumption. The user color set can be specified to highlight desired echoes depending on the fish types or the fish ground.
Simple Operation
• Simplified arrangement of switches and controls on the operating panel. The function keys and switches that had been rarely used has been eliminated.
• Display modes can easily be changed by switches.
• Additional functions can be selected from menu display and executed by one-touch key-in operation.
• By pushing "CUSTOM" key, the display easily returns to the mode normally used.
Sharp Display of Surface Fish and Bottom Fish
• Even tiny fish or small fish schools in the surface layer or on the sea-bed can be clearly discriminated.
• Tiny fish among planktons in the surface water can be clearly detected and distinctly displayed by the FM pulse beam transmission technique unique to JRV.
• The high power output of 10kW (option) is suited for deep sea sounding.
• A 16-color display with bottom enlargement enables sharp discrimination of bottom fish schools from the sea-bed.
VRIETY OF FUNCTIONS
• A-Scope Display
Fish echoes are clearly displayed in 16 colors with echo signal intensity.
• Fish Type Definition
The dual-frequency mode is suitable for fish type definition.
• Water Temperature Graph (with Alarm)
A water temperature graph can be displayed with a fish echo display on the same screen by using an optional water temperature sensor.
• 4-Screen Image Memory
Up to 4 pictures can be stored in the internal memory for recording of fish ground spots.
• Video Compression
Echo images for up to 4 hours can be displayed in a compressed mode on a signal screen.
• Ship's Position Display (Option)
The ship's Position can be indicated on the screen by connecting an optional GPS sensor.
• Wireless Remote Control (Option)
An wireless remote control unit is optionally available.
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SPECS
Display
Display type 14-inch high-definition color CRT with a resolution of 640 x 480 dots
Color display Selectable from 6 sets of 16 colors, 2sets of 8 colors, one set of 16 or 8user-specified colors and monochrome, and 4 background colors
CRT brightness Variable from push button
Display modes Standard (full screen)
Dual-split (vertical or horizontal)
Partial enlargement (single/dual-frequency)
Bottom lock enlargement (single/dual-frequency)
Dual frequency mix mode
Temperature graph *1, bottom hardness (BH) graph, water depth graph
A scope-at the right side of display
Power supply 20 to 45 VDC (24V/32V)
Echo Sounding Functions
Echo Display range Manual Six (6) ranges presettable from keyboard or continuously variable by Up and Down keys in the sounding ranges
Standard 10-3000 meters
Partial 5-500 meters
Bottom lock 1-100 meters
Auto Automatically set so as to display the sea button within the range
Shift Manual Presettable from push button, 0 to 1500 units
Auto Automatically set so as to display the sea button with in the shift
Depth unit Metres, fathoms, feet and any other selectable value unit
Depth marker Marker scale with alphanumeric readings at the right end of display
Bottom depth Numerical indication on display
Cursor Horizontal-depth (same as VRM)
Vertical-time or distance *2
Alarms Fish Adjustable in the normal maximum range + 1500 units in threshold level
Water temp Adjustable from -5° to +40° , or by parameters from push button *1
Image memory 4 frames of pictures
Compressed mode Display time selectable from 15 min, 30 min, 1hr, 2 hr and 4 hrs
Distance/Time mark Distance 0.1 nm-steos; time 1-min steps *2
Interface rejection Adjustable in three steps and off, or by fine adjustment of sounding rate or frequency
Draft control Presettable in 0.1 unit from 1 to 20 units via menu
Scan speed Normal 2/1, 1/1, 1/2É1/8 or scans/sounding synchronized log *3
Frequencies 200/75/50/28kHz, single or dual
Transmitter power Selectable from 1kW, 3kW, 5kW(option), 10kW(option).
5kW/10kW needs an high-power transmitter unit
Other Functions
Note: The CQD-1185 Terminal Board is needed for connection with optional equipment except for GPS and water depth sensors and RGB output.
Depth data output NMEA0183 or JRC format and NDF-167 navigational interface
Net sonde input Provided
Fish echo signal video output RGB output
Video monitor Up to 2 units connectable
Position, water temp input NMEA0183 format, 1CH each
Water temp interface Included (for CHG-97)
Notes: *1 With water temp. data input or sensor connected.
*2 Distance with log or navigator connected.
*3 With log or navigator connected.
OPTION
Item Model Remarks
High Power Tx Unit NAL-050 5kW
NAL-100 10kW
NAL-505 5/5kW
NAL-510 5/10kW
NAL-999 10/10kW
Terminal Board CQD-1185 For optional unit (excl. GPS and water temp. sensor)
Rectifier Unit NBA-3263 or NBA-3747A Input: 100/110/220V AC
Output: 24V DC, 6A
Water Temp. Sensor CHG-97
GPS Sensor GPS-100
DGPS Sensor DGPS-200
Color Printer NJW-163 A4 size
STANDARD
Output power 1kw 3kw 5kw 10kw
Frequency (kHz) 28 28 75 50 28 50 28
Transmitter Internal High Power Tx Unit (option)
Transducer Unit Single Frequency Selectable Single or Dual Frequency