Operator's Manual

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COLOR SCANNING SONAR

FSV-85

OPERATOR'S MANUAL

www.furuno.com

Model

Summary of content (184 pages)

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OPERATOR'S MANUAL COLOR SCANNING SONAR Model FSV-85 www.furuno.
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The paper used in this manual is elemental chlorine free. ・FURUNO Authorized Distributor/Dealer 9-52 Ashihara-cho, Nishinomiya, 662-8580, JAPAN All rights reserved. Printed in Japan A : MAR . 2011 B1 : FEB . 07, 2013 Pub. No.
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IMPORTANT NOTICES General • This manual has been authored with simplified grammar, to meet the needs of international users. • The operator of this equipment must read and follow the descriptions in this manual. Wrong operation or maintenance can cancel the warranty or cause injury. • Do not copy any part of this manual without written permission from FURUNO. • If this manual is lost or worn, contact your dealer about replacement.
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SAFETY INSTRUCTIONS The operator of this equipment must read the safety instructions before attempting to operate the equipment. DANGER Indicates a hazardous situation which, if not avoided, will result in death or serious injury. WARNING Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury. CAUTION Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury.
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SAFETY INSTRUCTIONS CAUTION Maximum speed while the transducer is projected and being raised or lowered is as below, to prevent damage to the transducer. Raising/ Lowering Projected Max. 15 kn Max. 18 kn CAUTION Observe the following precautions when using industrial use lubricant. Precautions Keep lubricant away from eyes. Wear protective goggles when working with the lubricant. The lubricant can cause inflammation of the eyes. Do not touch the lubricant.
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TABLE OF CONTENTS FOREWORD ...................................................................................................................ix SYSTEM CONFIGURATION ...........................................................................................x 1. OPERATIONAL OVERVIEW .................................................................................1-1 1.1 Control Description..................................................................................................... 1-1 1.1.
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TABLE OF CONTENTS 2.11 How to Track a School of Fish..................................................................................2-21 2.11.1 How to select the target lock mode ..............................................................2-21 2.11.2 Fish mode.....................................................................................................2-22 2.11.3 Target mark mode ........................................................................................2-23 2.11.
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TABLE OF CONTENTS 3.9.6 Echo average ............................................................................................... 3-14 3.9.7 How to suppress sidelobes .......................................................................... 3-14 3.10 How to Adjust Beam Width ...................................................................................... 3-15 3.11 Other Menu Items .................................................................................................... 3-16 3.
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TABLE OF CONTENTS 4.17.2 How to delete fish marks ..............................................................................4-27 4.18 Event Mark ...............................................................................................................4-28 4.18.1 How to enter an event mark .........................................................................4-28 4.18.2 How to erase an event mark ........................................................................4-29 4.19 Net Course Mark ..
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TABLE OF CONTENTS 9.8 9.9 9.10 9.11 Warning Messages .................................................................................................... 9-6 Error Codes................................................................................................................ 9-7 Status Messages........................................................................................................ 9-8 Tests ..............................................................................................
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FOREWORD A Word the Owner of the FSV-85 Congratulations on your choice of the FURUNO FSV-85 Color Scanning Sonar. We are confident you will see why the FURUNO name has become synonymous with quality and reliability. Since 1948, FURUNO Electric Company has enjoyed an enviable reputation for quality marine electronics equipment. This dedication to excellence is furthered by our extensive global network of agents and dealers.
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SYSTEM CONFIGURATION Standard configuration is shown with solid line. Monitor Monitor USB device (mouse, etc.
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1. OPERATIONAL OVERVIEW 1.1 Control Description 1.1.1 Control unit Tilt lever SHOOT V1/S V2 EVENT EVENT AUTO TRAIN OFF CENTER ESTIMATE 1 ESTIMATE 2 R/B AUDIO DELETE MARK TARGET LOCK FISH Left-click button Right-click button USER PROG MENU/ ESC 䌆1 AUTO TILT 䌆2 DISP MODE 䌆3 Scrollwheel GAIN 䌆4 䌆5 H/V/S 䌆6 RANGE 䌆7 䌆8 䌆9 䌆10 Trackball Function key Trackball unit Key | Function Turns power on. Turns power off. Raises the transducer.
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1. OPERATIONAL OVERVIEW Key Function • Inscribes event mark 2 or own ship mark (horizontal mode). • Inscribes event mark 2 (slant mode). EVENT ESTIMATE 1 ESTIMATE 2 TARGET LOCK FISH MENU/ESC AUTO TILT DISP MODE H/V/S Function key (F1 to F10) USER PROG control GAIN control RANGE control Tilt lever Trackball unit 1.1.2 Turns the estimate mark on/off (horizontal mode, slant mode). Enters target lock mark (horizontal mode, slant mode). Enters fish mark (horizontal mode, slant mode).
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1. OPERATIONAL OVERVIEW 1.1.3 Remote controller (option) The remote controller lets you control the sonar from a remote location. Note: Keep the remote controller away from water and water splash. Hook the remote controller to the bracket when it is not in use. No. Function (on control unit) 1 Same as F1, F2 and F3 key. 2 Same as 3 Same as right-click button. 4 Same as the left-click button. 5 Same as [EVENT], [ESTIMATE], [TARGET LOCK] and [FISH] keys. 2 6 Same as trackball.
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1. OPERATIONAL OVERVIEW 1.2 Turning the Power On/Off Turning the power on Press the POWER ON ( | ) switch. A beep sounds, and the display changes in the following sequence: FURUNO display → model display → board test display. Then lamp above the switch changes as below. The last-used mode is activated in approximately 140 seconds after turning the power on.
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1. OPERATIONAL OVERVIEW 1.3.1 Lowering the transducer With the boat at the fishing ground and the power on, press the or key. The lamp above the key pressed blinks during lowering and lights when the transducer is completely lowered to selected protrusion distance. It takes about 21 seconds for full protrusion in case of 800 mm stroke and 28 seconds in case of 1100 mm stroke. In normal use fully lower the transducer.
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1. OPERATIONAL OVERVIEW 3. Select [Display Setting] then push the left-click button. 4. Select [Dimmer] then push the left-click button to show the setting box. 5. Select S (increase) or T (decrease). 6. Push the left-click button several times to select a value. 7. Select [Quit] on the setting box then push the left-click button to close the box. 8. Long-press the MENU/ESC key to close all menus. Note: The default function of the F8 key adjusts the panel dimmer. 1.
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1. OPERATIONAL OVERVIEW N N H1 H2 1 1 1 W 85 2 E N W E 300 1 3 2 3 S Main monitor Sub monitor Ex; Dual Display (H1 + H2 mode) Display format Echo picture display (Full Screen) Numeric/graphic data display Echo picture display (Within Range) Numeric/graphic data display As shown in the illustration below, you have two choices with which to show the echo display. See page 7-3 for how to select the display method. For the numeric/graphic data display, see page 5-1.
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1. OPERATIONAL OVERVIEW 1.5.1 How to select a display mode Press the MODE key several times until the desired display appears. The default modes are Horizontal, Horizontal1 + Horizontal2, Vertical1 and Vertical1 + Vertical2. You can program the MODE key to show any or all of the modes mentioned above. For further details, see "Display Mode" on page 7-6. The MODE key may be programmed to show a pull-down menu instead of a conventional menu. 1.
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1. OPERATIONAL OVERVIEW H2 mode This mode provides two horizontal screens (H1 and H2) in one of the configurations shown below. The default configuration, Landscape, shows two horizontal displays, one up and one down. Other configurations available are as shown below. Desired configuration may be chosen with H2/S2 Display in the [Display Setting] menu. For further details, see chapter 2.
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1. OPERATIONAL OVERVIEW H and S mode Numeric/graphic data display H S S H N N 1 2 3 1 2 3 1 3 1 32 2 3 1 2 3 1 1 2 S S Numeric/graphic data display This mode provides horizontal and slant modes in one of the configurations shown below. The default configuration, Landscape, shows two horizontal displays, one up and one down. Other configurations available are as shown below. Desired configuration may be chosen with H2/S Display in the [Display Setting] menu.
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1. OPERATIONAL OVERVIEW V1 and V2 modes The V1 and V2 modes show a vertical slice of the bearing selected by the vertical bearing mark on the horizontal display. The vertical 2 mode provides two vertical slices. For further details, see chapter 3. 㪥㪥㪟㪮㪜㪌㪇㪇㪭㪈㪌㪇㪇㪟㪭㪈㪇㪇㪇 NUMERIC/ GRAPHIC DATA DISPLAY 㪉㪈㪮㪜㪈㪌㪇㪇㪈㪌㪇㪇㪈㪇㪇㪇㪌㪇㪇㪌㪇㪇㪈㪇㪇㪇㪌㪇㪇㪉㪇㪇㪇㪌㪇㪇㪉㪇㪇㪇㪭㪉㪪㪈㪌㪇㪇㪌㪇㪇㪈㪇㪇㪇㪈㪇㪇㪇 NUMERIC/ GRAPHIC DATA DISPLAY 㪈㪇㪇㪇㪪㪭㪈 V1 & V2 mode V1 mode Vertical mode 1.
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1. OPERATIONAL OVERVIEW 1.7 How to Use the Menu Most operations are carried out from the menu. This section provides basic menu operating information. 1. Press the MENU/ESC key to open the main menu. Menu title Select “Shortcut Menu” to show the menu title you programmed. (See section 6.1.) Select QUIT with trackball and then left click to close the menu. “...” means that this item has sub menus. The descriptions for the selected item appears in this field.
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1. OPERATIONAL OVERVIEW 6. Select the setting. • (Numeric) Select S to increase the value then push the left-click button (or roll the scrollwheel upward). To decrease the value, select T and push the left-click button (or roll the cursor scrollwheel downward). • (Items) Select an item then push the left-click button. 7. Select [Quit] on the setting box then push the left-click button to close the box. If you want to cancel the setting, select [Cancel]. 8. Long-press the MENU/ESC key to close all menus.
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1. OPERATIONAL OVERVIEW Pop-up menu operation Push the right-click button on the numeric/graphic data display to show the pop-up menu. These items can be accessed from the main menu.
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2. HORIZONTAL MODE 2.1 Basic Operating Procedure 2. Lower transducer. : Mid protrusion 䋺Full protrusion 1. Turn on power. SHOOT V1/S V2 AUTO TRAIN R/B AUDIO EVENT EVENT OFF CENTER ESTIMATE ESTIMATE 2 DELETE MARK TARGET LOCK 1 FISH USER PROG MENU/ ESC 䌆1 AUTO TILT 䌆2 DISP MODE 䌆3 GAIN 䌆4 䌆5 H/V/S 䌆6 RANGE 䌆7 䌆8 䌆9 䌆10 7. Set tilt angle. 5. Select range. 4.
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2. HORIZONTAL MODE 2.2 Indications and Markers 2.2.1 Horizontal mode, full-screen display The full-screen horizontal display provides a 360° picture around the boat. To display the full-screen horizontal picture, press the DISP MODE key.
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2. HORIZONTAL MODE 2.2.2 Horizontal2 mode The H2 mode shows one of three kinds of horizontal display combinations: Landscape, Portrait or Inset as shown on page 1-9. Follow the procedure shown below to select a combination display. The zoom-out display (shown on the inset mode) can be moved by drag and drop operation and its size changed from the menu. 1. Press the MENU/ESC key to show the main menu. 2. Select [Others] then push the left-click button. 3.
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2. HORIZONTAL MODE 2.3 Display Range The RANGE control selects the detection range and six ranges are preset at the factory. The range selected is momentarily displayed in large characters at the top of the screen. Range is always displayed next to “R“ at the top right of the screen. Surface Range displayed on display Bottom Default settings for the display range (unit: m) Range No.
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2. HORIZONTAL MODE 2.4 Tilt Angle The tilt angle shows the direction to which the sound wave is emitted. When the sound wave is emitted horizontally, the tilt angle is said to be 0° and when vertically, 90°. The tilt angle can be set between -5° (upward) to 90° (downward), in increments of 1°. The tilt angles for horizontal 1 and horizontal 2 modes can be set independently of one another. 2.4.1 How to set the tilt angle To set a tilt angle manually, operate the TILT control.
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2. HORIZONTAL MODE 2. If necessary operate the TILT control to change center tilt angle. In automatic tilt, “AUTO” is displayed at the top right corner. To disable automatic tilt, select OFF at step 1.
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2. HORIZONTAL MODE 2.4.3 Relation between bottom echo and tilt angle The figure below illustrates how two schools of fish "a" and "b" are displayed on the screen using three different tilt angles. Case 1: Tilt angle 30° to 40°: This tilt angle will display the entire bottom since it is captured by the full width of the beam. The school of fish is obscured by the bottom. Case 2: Tilt angle 10° to 20°: This tilt angle will only display half the bottom since it is captured by only the lower half of the beam.
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2. HORIZONTAL MODE 2.4.4 Tilt angle for surface fish Sound emitted from the sonar transducer forms an oval-shaped beam with a width of approximately 10° in the vertical direction (vertical beam width at -6dB). The tilt angle indicates the angle between the centerline of the beam and the horizontal plane. Then, if the tilt angle is set to 0°, the centerline is parallel with the sea surface and one half of the emitted sound goes upward, toward the sea surface.
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2. HORIZONTAL MODE 2.5 How to Measure Range and Bearing to a Target Operate the trackball to place the cursor on the target you want to measure the range and bearing. The range, bearing and depth to the target appear at the upper left corner of the screen. TRACKBALL DATA Slant range Horizontal range Depth B Relative or True bearing Cursor L/L position 㪙 Cursor Heading line Own ship mark 㩷㩷㩷㩷㪊㪋°㪌㪍㪅㪎㪏㪐㪥㪈㪉㪊°㪋㪌㪅㪍㪎㪏㪜 Note 1: Trackball position may also be shown in latitude and longitude.
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2. HORIZONTAL MODE 3. Press the H/V/S key to select [H1] or [H2] tab. 4. Select [Sel TVG Curve] then left-click. 5. Select a TVG curve then push the left-click button. The smaller the number, the gentler the gain change over distance. 6. Select [Quit] on the setting box then push the left-click button. 7. Long-press the MENU/ESC key to close all menus. The TVG is also used to suppress unwanted echoes (sea surface reflections, cruising noise, etc.) on near ranges.
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2. HORIZONTAL MODE 4. Select [TVG Distance] then push the left-click button. 5. Select [Changeable] then push the left-click button. Current settings Select item with trackball; push left-click button to adjust. 6. Select [Near], [Med] or [Far] as appropriate then push the left-click button to change the setting. Near: Setting range, 50 - 150 m, 10 m increments. Med: Setting range, 300 - 500 m, 20 m increments Far: Setting range, 600 - 1000 m, 40 m increments 7.
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2. HORIZONTAL MODE 2.7 How to Adjust Strong, Weak Echoes 2.7.1 AGC The AGC function automatically reduces the receiver gain only against strong echoes such as the bottom or a large school of fish. Since the AGC function does not affect weak echoes, a small school of fish becomes easier to detect. Adjust it so that the AGC works only on bottom reflections. Do not set it too high; weak echoes may be missed. 1. Press the MENU/ESC key to show the main menu. 2.
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2. HORIZONTAL MODE 2.7.3 2nd AGC While it is ideal to suppress bottom echoes with the AGC alone there are some fishing grounds where this is not possible. (The high power sonar has the advantage of longrange detection but this can also be a disadvantage, since weaker echoes may be hidden in strong, unwanted echoes such as the bottom.) If you cannot suppress bottom echoes or sea surface reflections by the AGC function alone, use the 2ND AGC feature. Normally a setting of 1 or 2 is suitable.
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2. HORIZONTAL MODE Exclusive Rng S: This feature prevents use of the 2nd AGC, Post 2nd AGC in a certain area at the stern, where unwanted echoes (such as screw noise) can interfere with the 2ND AGC or Post 2nd AGC feature. Set the area of exclusion on the setting dialog box. In the example at right the area of exclusion is ±45°. Area of exclusion -45° +45° *The [Post 2nd AGC] functions independently of [2nd AGC].
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2. HORIZONTAL MODE 2.8 How to Suppress Bottom and Sea Surface Reflections in Shallow Waters In shallow fishing grounds with hard or rocky bottom, bottom reflections often interfere with wanted fish echoes and they can not be eliminated sufficiently with the aforementioned TVG and AGC functions, especially when the Tilt is set to a larger angle in order to track schools of fish approaching within 400 m. In such cases try to reduce the output power by adjusting the Tx power instead of turning down the gain.
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2. HORIZONTAL MODE 2.9 How to Reject Sonar Interference and Noise While observing the sonar picture, you may encounter occasional or intermittent noise and interference. These are mostly caused by on-board electronic equipment, engine or propeller noise, or electrical noise from other sonars being operated nearby. 2.9.1 How to identify the noise source To eliminate noise effectively, you should first identify the noise source as follows: 1. Stop transmission on the [Test] menu; turn on [TX].
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2. HORIZONTAL MODE 2.9.3 Interference rejector This control is similar to the interference rejector on echo sounders and radars. It is effective for rejecting random noise and sea surface reflections in rough sea conditions. Set it so that noise is just eliminated. Do not use an unnecessarily high setting since it may also reject small, wanted echoes. 1. Press the MENU/ESC key to show the main menu. 2. Select [Picture Setting] then push the leftclick button. 3.
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2. HORIZONTAL MODE 2.9.5 Noise limiter Weak, unwanted reflections, colored light-blue or green, appear when the water is dirty, plankton layers exists, or due to ship’s noise. The noise limiter can reduce the effects of these unwanted reflections. Raising the setting causes unwanted reflections to be displayed in colors of blue to background color. 1. Press the MENU/ESC key to show the main menu. 2. Select [Display Setting] then push the left-click button. 3.
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2. HORIZONTAL MODE 2.9.6 Reverberation You may select the length of reverberation for the echo signal, with [Reverberation] on the [TX/RX Setting] (H1 or H2 tab). The setting range is 0-3. The larger the value, the lower the reverberation effects. Set the length of reverberation properly to make it easier to see the echo signal. 2.9.7 Echo average [Echo Average] (H1 or H2 tab) on the [Picture Setting] menu adjusts echo afterglow the amount of time an echo signal remains on the screen.
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2. HORIZONTAL MODE Sidelobe suppression B For greater sidelobe suppression, use [Sidelobe Sup. B]. The setting range is 1 to 5. The larger the setting value, the more the sidelobe is suppressed; however, the width of the beam increases thus resolution is lower. The negative value setting (-5 to -1) is effective for reducing the effects of screw noise. Area in which SIDELOBE SUP.
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2. HORIZONTAL MODE Description of Beam Width menu Beam Control: Control the beamwidth according to option selected. Manual: Select this item to enable adjustment of the other items in this menu. Range: The beamwidth is automatically controlled with the range setting. Tilt: The beamwidth is automatically widened as tilt goes deep. This is convenient for keeping a watch on fish that ascend and descend. TX Beam Width*: Increase the value to display close-range echoes clearly. Hor.
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2. HORIZONTAL MODE 5. Select [Target Lock] then push the left-click button. 6. Select [Tracking Method] then push the left-click button. 7. Select [Fish] or [Target Mark] then push the left-click button. See paragraph 2.11.2 and paragraph 2.11.3. 8. Select [Quit] on the setting box then push the left-click button to close the box. 9. Long-press the MENU/ESC key to close all menus. 2.11.2 Fish mode The automatic echo target lock function automatically tracks the operator-selected school of fish.
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2. HORIZONTAL MODE If the target is lost, the target lock mark changes to red color and the tracking mode changes to position mode (see next section) at that position. When the sonar detects and tracks the target again, the FISH mode is restored. Target lock mark Track of school of fish (Turned ON or OFF on Mark Display menu.) TARGET LOCK DATA 2975m (Horizontal range) 153m (Depth) S 12.3kn (Speed) C 256° (Course) Vector (Heading data required) 4. To disable the target lock, press the TARGET LOCK key. 2.
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2. HORIZONTAL MODE Tracking Data: Selects which target lock tracking data to use, horizontal or slant, or both horizontal and vertical. Threshold: Selects the minimum signal level to use in target lock tracking. The setting range is 1 to 30. Target lock tracks a target whose signal level is greater than set here. Bottom Threshold: When a target is judged as a bottom echo, raise this setting to differentiate bottom from target. The setting range is 0 to 5.
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2. HORIZONTAL MODE True Motion: Stationary objects are fixed and own ship and fish echoes move on the display in accordance with their true courses and speeds. Thus you can observe own ship and fish echo movement with respect to the bottom. This mode requires speed and heading data. When own ship mark reaches an edge of the off-center effective area it is automatically returned to the screen center as below.
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2. HORIZONTAL MODE 2.13 How to Detect Schools of Fish Aurally Sometimes you may be preoccupied with other tasks and unable to concentrate on watching the sonar picture. In such cases it would be a good choice to use the audio function. This function enables you to monitor echoes from schools of fish and bottom through the external speaker. 2.13.1 How to set the bearing In the default setting, the audio function is on and the audio sector is 30°. 1.
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2. HORIZONTAL MODE 4. Select [Audio Sector] then push the left click button. 5. Select desired sector then push the left-click. 6. Select [Quit] on the setting box then push the left-click button to close the box. 7. Long-press the MENU/ESC key to close all menus. 2.13.3 Automatic training You may automatically scan the audio sector and audio bearing mark in the sector of 12°, 24° or 36° as shown below. 1. First activate the range and audio bearing marks with the R/B AUDIO key. 2.
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2. HORIZONTAL MODE 8. Operate the trackball to place the cursor on the starting point of the alarm zone. 9. Push the left-click button. 10. Rotate the trackball clockwise to select the ending point. The display paints a fanshaped alarm zone. The alarm range appears on the display as shown below. << Alarm Zone >> Move trackball cursor to origin of alarm zone and left click. Press [R/B] key or right click to cancel. << Alarm Zone >> Move cursor to the end of alarm range and left click.
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2. HORIZONTAL MODE 3. To move the own ship mark back to the screen center, press the OFF CENTER key again. School of fish School of fish Press OFF CENTER key Own ship mark Own ship mark moves to trackball position, Set cursor here, for example, Note: You can also move the display by long-pressing the left-click button. To restore the normal display, long-press the right-click button. 2.16 How to Compare Concentration of School of Fish 2.16.
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2. HORIZONTAL MODE Fish histogram The fish histogram shows, in graph form, signal strength distribution for the school(s) of fish marked with an estimate mark on the horizontal/slant displays. The histogram display for each of those displays will be different since the calculation method is different. This data appears only when an estimate mark is active. When two estimate marks are active, histograms are displayed one on top of the other as below.
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2. HORIZONTAL MODE 2. Select the circle cursor and push the left-click button. The [Select Mark] window disappears, then the cursor is changed to the circle cursor. 㪏㪊㫄 Diameter of the circle cursor 3. Place the circle cursor on a school of fish. 4. Rotate the scrollwheel to adjust the size of the circle cursor. Set the school of fish in the circle cursor to estimate correctly. The diameter of the circle cursor is displayed below the circle cursor. 5.
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2. HORIZONTAL MODE 2.17 How to Measure the Speed of a School of Fish To ensure a good haul, it is important to estimate the direction and speed of the school of fish before shooting the net. You can do this with the FISH key. With tidal current data and fish speed data, you can determine the timing of the net shooting more efficiently. This function requires speed and heading data. 2.17.1 How to measure the speed of a school of fish 1.
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2. HORIZONTAL MODE 2.17.2 How to delete fish marks Fish marks can be deleted individually with the DELETE MARK key or by earliest entry from the menu. How to delete fish marks with the DELETE MARK key Use the trackball to place the cursor on the fish mark you want to erase. The color of the fish mark changes from white to red when the fish mark is correctly selected. Press the DELETE MARK key to delete the fish mark. How to delete fish marks from the menu 1.
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2. HORIZONTAL MODE 2.18 Event Mark, Own Ship Position Mark The event mark is useful for finding the horizontal range, depth and bearing to a location some distance from current position. 20 such marks may be inscribed on the horizontal display. This function requires speed and heading data. There are two types of event marks, latest event mark 1 ( ) and event mark 2 ( ).
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2. HORIZONTAL MODE 2.18.2 How to enter an own ship position mark Place the cursor close to the center of the own ship mark (U) and press the EVENT key. Ten own ship position marks may be inscribed. When the capacity for own ship position marks is reached the earliest own ship position mark is automatically erased. Note: The SHOOT key can enter the own ship position mark. Set [Event Key] to [Shoot] on the [Mark Display] menu. 2.18.
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2. HORIZONTAL MODE 2.19 Net Course Mark Before shooting the net, decide the shoot timing considering tide direction, distance to the school of fish and moving direction of the school of fish. Use the net course mark as a guide to decide the timing. This function requires speed and heading data. How to enter the net course mark 1. Press the MENU/ESC key to show the main menu. 2. Select [Others] then push the left-click button. 3. Select the [Display Setting] then push the left-click button. 4.
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2. HORIZONTAL MODE 2.20 Net Behavior With connection of a net sonde, you can observe net behavior after the throwing of the net. Accurate depiction of net sonde position depends on proper setting of the distances between net sonde transmitters. You can set those distances on the main menu[Others] - [Initial Setting] - [Net Sonde Setting] menu. This function requires speed and heading data. To enable this feature, set [Event Key] to [Event] in the [Mark Display] menu, then do the following: 1.
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2. HORIZONTAL MODE 2.21 Menu Items Descriptions This section presents an overview of the horizontal display related menus not previously described. Gain Setting menu Gain Control: If the amount of gain change affected with the GAIN control on the front panel is too low, change the setting to [Wide], to double the range of the control. Display Setting menu Gain Offset: Adjusts gain level. If the GAIN control on the front panel does not provide satisfactory gain adjustment, enter an offset here.
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2. HORIZONTAL MODE 1. Operate the trackball to select color then push the left-click button to show the color bar. Select color with trackball. COL: Cycles through default colors. HUE: Adjusts color tint (Setting range: 0-100(%)). SAT (Saturation): Adjusts color vividness (Setting range: 0-100(%)). LUM (Luminescence): Adjusts color brightness (Setting range: 0-100(%)). 2. Select S or T for COL, HUE, SAT or LUM. 3. Push the left-click button several times to set. 4.
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2. HORIZONTAL MODE To set input level versus output level, use the trackball to place the cursor on location desired and push the left-click button. Note: To restore default color response, select [Default] on the window then push the left-click button. Picture Setting menu Smooth Echo RNG: Selects echo smoothing level in the range direction. The setting range is 0-7. The higher the setting, the greater the smoothing. Smooth Echo CIR: Selects echo smoothing level in the circular direction.
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2. HORIZONTAL MODE 2.22 How to Interpret the Horizontal Display 2.22.1 Bottom and school of fish echoes Bottom echoes When the tilt angle is changed, the bottom echo illustrated below will appear on the display. When the tilt is decreased (toward 0°), the bottom trace becomes wider and weaker. By observing the bottom condition on the display, the skipper can prevent net damage. (A) Flat bottom Tilt angle: 10° to 15° Decreased tilt angle Only half of vertical beam width captures the bottom.
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2. HORIZONTAL MODE School of fish A school of fish appear as a mass of echoes on the screen. By this display pattern, the density of the school on the sonar beam can be found. To find distribution and center point of a school of fish, try several different tilt angles. (A) Sea surface fish Tilt angle: 0° to 10° Bottom echo not displayed because of decreased tilt angle. Sea surface reflections are present.
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2. HORIZONTAL MODE 2.22.2 Unnecessary echoes Sea surface reflections To reduce sea surface reflections, set the tilt angle to 4° or higher, so the upper edge of the sonar beam does not hit the sea surface, or adjust TVG. When a decreased tilt is used, sea surface reflections cover a large area as illustrated below.
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2. HORIZONTAL MODE Sidelobe echoes (false echoes An ultrasonic wave is emitted only in the direction set by the TILT control, however there are some emissions outside the main beam. These are called sidelobes. The energy of the sidelobe is fairly weak but when the water is comparatively shallow and the bottom is rocky and hard, strong signals are detected by the sidelobe. These are represented on the display as a false echo as shown below.
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3. VERTICAL MODE 3.1 Basic Operating Procedure 2. Lower transducer. : Mid protrusion 䋺Full protrusion 5. Press appropriate key. 1. Turn on power. 4. Set vertical bearing mark to display in vertical display. SHOOT V1/S V2 AUTO TRAIN R/B AUDIO EVENT EVENT OFF CENTER ESTIMATE ESTIMATE 2 DELETE MARK TARGET LOCK 1 FISH USER PROG MENU/ ESC 䌆1 AUTO TILT 䌆2 DISP MODE 䌆3 GAIN 䌆4 䌆5 H/V/S 䌆6 RANGE 䌆7 䌆8 䌆9 䌆10 7. Select range. 6.
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3. VERTICAL MODE 3.2 How the Vertical Mode Works 3.2.1 Overview The vertical mode shows a vertical section of the horizontal display selected with the vertical bearing mark. The figure below illustrates the concept of the vertical mode, in comparison with the horizontal mode. The vertical mode helps you keep fast moving fish such as bonito and tuna within the sonar beam. Horizontal Mode Vertical Mode Detection aspect, view from top Detection aspect, view from side 3.2.
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3. VERTICAL MODE 3.3 Vertical Indications and Marks 3.3.1 Typical vertical display The vertical mode provides a vertical section of the horizontal picture. You may show the display on the right or left side of the screen in case of the vertical 1 mode. An expansion mode is available to enlarge the picture. To display the vertical mode, press the DISP MODE key and choose V1 or V1 & V2.The example below shows the V1 mode. You can move and change the window size of the vertical display 1 by drag and drop.
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3. VERTICAL MODE Note: When the settings listed below are changed, the setting value is shown at the top of the display for five seconds. The location of the setting value can be changed. Contact your dealer for details. • Gain (See section 1.6.) • Vertical bearing (See paragraph 3.2.2.) • User program (See section 6.3.) 3.3.2 • Display range (See section 3.5.) • Auto train (See section 3.4.
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3. VERTICAL MODE 3.3.3 Cursor position reference mark The cursor position reference mark, a solid circle, is inscribed on the vertical bearing mark when the cursor is placed in the vertical display. Its purpose is to show corresponding cursor position on the horizontal display. It changes position with cursor position, tilt and range, and disappears when its position is no longer within the range of the horizontal display. V Vertical bearing mark Cursor position reference mark 3.
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3. VERTICAL MODE 1. Press the H/V/S key to show the range and gain indications of the horizontal mode to change the range (and gain). 2. Operate the RANGE control to select a range. Note: The range can also be adjusted from the range indication. Put the cursor on the range indication to highlight it in yellow then roll the scrollwheel. 3.6 How to Measure the Range, Bearing to a Target Operate the trackball to place the cursor on the vertical 1 (or vertical 2) display.
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3. VERTICAL MODE 3. Press the H/V/S key to select [V] tab. 4. Select [Sel. TVG Curve] then push the left-click button. 5. Select a curve then push the left-click button. The smaller the number the gentler the gain change over distance. 6. Select [Quit] on the setting box then push the left-click button. 7. Long-press the MENU/ESC key to close all menus. The TVG is also used to suppress unwanted echoes (sea surface reflections, cruising noise, etc.) on near ranges.
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3. VERTICAL MODE 1. Press the MENU/ESC key to show the main menu. 2. Select [Gain Setting] then push the left-click button. 3. Press the H/V/S key to select the [V] tab. 4. Select [TVG Distance] then push the left-click button. 5. Select [Changeable] then push the left-click button. urrent settings Select item with trackball; push left-click button to adjus 6. Select S or T; for [Near], [Med] or [Far] as appropriate then push the left-click button to change the setting.
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3. VERTICAL MODE 3.8 How to Adjust Strong, Weak Echoes 3.8.1 AGC The AGC functions to automatically reduce the receiver gain only against strong echoes such as the bottom or a large school of fish. Since weak echoes remain unaffected, a small school of fish becomes easier to detect. Adjust it so that the AGC works only on bottom reflections. Do not set it too high; weak echoes may be missed. 1. Press the MENU/ESC key to show the main menu. 2. Select [Gain Setting] then push the left-click button. 3.
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3. VERTICAL MODE 3.8.3 2nd AGC While it is ideal to suppress bottom echoes with the AGC alone there are some fishing grounds where this is not possible. (The high power sonar has the advantage of longrange detection but this can also be a disadvantage, since weaker echoes may be hidden in strong, unwanted echoes such as the bottom.) If you cannot suppress bottom echoes or sea surface reflections by the AGC function alone, use the 2ND AGC feature. Normally a setting of 1 or 2 is suitable.
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3. VERTICAL MODE 2. Select [TX/RX Setting] then push the left-click button. 3. Press the H/V/S key to select the [V] tab. 4. Select [TX Pulse Length] then push the left-click button. 5. Select S or T then push the left-click button to change the setting. The setting range is 0-9. The higher the setting, the longer the pulse length. 6. Select [Quit] on the setting box then push the left-click button to close the box. 7. Long-press the MENU/ESC key to close all menus. 3.
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3. VERTICAL MODE 3.9.2 Interference rejector This control is similar to the interference rejector on echo sounders and radars. It is effective for rejecting random noise and sea surface reflections in rough sea conditions. Set it so that noise is just eliminated. Do not use an unnecessarily high setting since it may also reject small wanted echoes. 1. Press the MENU/ESC key to show the main menu. 2. Select [Picture Setting] then push the leftclick button. 3. Press the H/V/S key to select the [V] tab. 4.
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3. VERTICAL MODE 3.9.4 Noise limiter Weak, unwanted reflections, colored light-blue or green, appear when the water is dirty, plankton layers exists, or due to ship’s noise. The noise limiter can reduce the effects of these unwanted reflections. Raising the setting causes unwanted reflections to be displayed in colors of blue to background color. 1. Press the MENU/ESC key to show the main menu. 2. Select [Display Setting] then push the left-click button. 3. Press the H/S/V key to select the [V] tab. 4.
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3. VERTICAL MODE 3.9.5 Reverberation You may choose the length of reverberation for the echo signal, with [Reverberation] in the [TX/RX Setting] menu on the [V] tab. The larger the value, the lower the reverberation effect, which makes it easier to see the echo signal. The setting range is 0-3. 3.9.6 Echo average [Echo Average] on the [Picture Setting] menu in the [V] tab adjusts echo afterglow the amount of time an echo signal remains on the screen.
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3. VERTICAL MODE 3.10 How to Adjust Beam Width The width of the horizontal beam can be adjusted from the [Beam Width] menu. 1. Press the MENU/ESC key to show the main menu. 2. Select [TX/RX Setting] then push the left-click button. 3. Press the H/V/S key to select the [V] tab. 4. Select [Beam Width] then push the left-click button. 5. Select the item to set then push the left-click button. Description of Beam Width menu Beam Control: Control the beamwidth according to option selected.
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3. VERTICAL MODE 3.11 Other Menu Items This section describes menu items which have not been explained yet. Gain Setting menu Gain Control: If the amount of gain change affected with the GAIN control on the front panel is too low, change the setting to [Wide], to double the range of the control. Display Setting menu Gain Offset: Adjusts gain level. If the GAIN control on the front panel does not provide satisfactory gain adjustment, enter an offset here. The setting range is 0-12.
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3. VERTICAL MODE V-Scan Color 1 (2 to 4) Setting: Customizes colors. For details, see page 2-38. V-Scan Color Curve Setting: Adjusts reflected echo strength versus echo color level for currently selected color response number. To adjust the curve, see page 2-38. Picture Setting menu Smooth Echo RNG: Selects echo smoothing level in the range direction. The setting range is 0-7. The higher the setting, the greater the smoothing. Smooth Echo CIR: Selects echo smoothing level in the circular direction.
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3. VERTICAL MODE 3.12.3 Approaching The sonar lets you view the movement of a school of fish continuously, thus you can approach a school confident of a good catch. While a flock of birds hovering over the sea surface is usually a good indication of the presence of a school of fish, the sonar can better verify the size of a school of fish. 3.12.4 Catching While the sonar operator monitors the sonar for other schools of fish, the crew can scatter bait and water to attract fish to the boat.
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4. SLANT MODE 4.1 Basic Operating Procedure 2. Lower transducer. 8. Push applicable key. : Mid protrusion (For setting train angle.) V1: Left, V2: Right : Full protrusion 1. Turn on power. SHOOT V1/S V2 EVENT EVENT AUTO TRAIN OFF CENTER ESTIMATE 1 ESTIMATE 2 R/B AUDIO DELETE MARK TARGET LOCK FISH USER PROG MENU/ ESC 䌆1 AUTO TILT 䌆2 DISP MODE 䌆3 GAIN 䌆4 䌆5 H/V/S 䌆6 RANGE 䌆7 䌆8 䌆9 䌆10 7. Adjust tilt. 5. Select range. 4.
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4. SLANT MODE 4.2 Indications and Marks The picture produced by the slant mode is the same as that of the half-circle sonar picture. The slant mode provides a half-circle (180°) picture, with own ship at the center 4.2.1 Slant mode, full-screen display To select the full-screen slant mode display, press the MODE key and select [S]. (To use the slant mode, presetting of the mode is required. MENU/ESC key - [Others] menu - [Register] - [Display Mode] - [S].
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4. SLANT MODE 4.2.2 Slant mode, combination display The slant mode combination display provides the slant and horizontal pictures. The pictures can be arranged in landscape, portrait and inset. The zoom-out display shown on the inset display can be moved or changed the size with the drug and drop operation. To select desired combination display do the following: 1. Press the MENU/ESC key to show the main menu. 2. Select [Others] then push the left-click button. 3.
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4. SLANT MODE 4.3 Display Range The RANGE control selects the detection range and six ranges are preset at the factory. The range selected is momentarily displayed in large characters at the top of the screen. Range is always displayed next to “R“ at the top right hand corner of the screen. Surface Range displayed on display Bottom Range No. 1 2 3 4 5 6 Detection range 100 200 400 600 800 1000 Note: Ranges can be preset on the [Register] menu. See page 7-6. 1.
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4. SLANT MODE 4.4.2 Automatic tilt The AUTO TILT key automatically scans the tilt angle within the selected width. This is useful when you want to find the center depth of a school of fish. Wide tilt angle is activated from the [Auto Tilt] in the [Others] - [Display Setting] menu. 1. Press the AUTO TILT key to select auto tilt angle desired. Each time the key is pressed the auto tilt angle changes in the following sequence.
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4. SLANT MODE 4.5 Auto Train This feature provide automatic training of the Tx and Rx beams in left and right directions to enable search over a wide area. This feature is inoperative when target lock is active. Bow Train center angle 1. Press the V1/S or V2 key to set center angle for automatic training. Each press of those keys displays center angle for automatic training at the center of the screen. Operate V1/S to change training rightward; V2 to change training leftward. Train angle 2.
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4. SLANT MODE 4.7 How to Eliminate Weak Echoes Echoes from targets such as bottom and fish return to the transducer in order of distance to them, and when we compare their intensities at the transducer face, those from nearer targets are generally stronger due to little propagation attenuation and little absorption.
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4. SLANT MODE TVG distance and setting This sonar has three TVG functions, Near, Medium and Far, and they mainly compensate for propagation loss on short, middle and long ranges respectively, centered at the ranges shown below. The higher the TVG setting the greater the amplification of echoes. For details, see chapter 2. Ne ar rox . 50 App m Me App rox d . 30 0m App Far rox . 68 0m 4.8 How to Adjust Strong, Weak Echoes 4.8.
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4. SLANT MODE 4.8.2 Near AGC When the water is shallow or heavily sedimented, the reflected echoes from close-in, unwanted echoes may be excessively strong. In this case, a school of fish which is displayed at between 300 and 500 m may disappear gradually when the ship starts approaching the school of fish. Use the Near AGC feature to suppress this strong echo. Normally set it between 3 and 4, however, this setting depends on the sea area.
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4. SLANT MODE 4. Select [2nd AGC] then push the left-click button. 5. Select [2nd AGC] again then push the left-click button 6. Select S or T then push the left-click button to change the setting. The setting range is 0 to 20. The higher the setting, the stronger the suppression on long range. 7. Select [Quit] on the setting box then push the left-click button to close the box. 8. Long-press the MENU/ESC key to close all menus.
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4. SLANT MODE 3. Press the H/V/S key to select the [S] tab. 4. Select [TX Pulse Length] then push the left-click button. 5. Select S or T then push the left-click button to adjust the setting. The setting range is 0-9. The higher the setting, the longer the pulse length. 6. Select [Quit] on the setting box then push the left-click button to close the box. 7. Long-press the MENU/ESC key to close all menus. 4.
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4. SLANT MODE 4. Select [TX/RX Power] then push the left-click button. 5. Select S or T then push the left-click button to adjust the setting. The setting range is 0-9. The higher the setting, the greater the TX power. 6. Select [Quit] on the setting box then push the left-click button to close the box. 7. Long-press the MENU/ESC key to close all menus. 4.10 How to Reject Sonar Interference and Noise While observing the sonar picture, you may encounter occasional or intermittent noise and interference.
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4. SLANT MODE 4.10.2 Change TX interval When other sonars nearby are operating the same transmission interval as that of own ship's sonar, rings of interference appears on the display. Interference To remove the rings from the screen, do the following: 1. Press the MENU/ESC key to show the main menu. 2. Select [TX/RX Setting] then push the left-click button. Tx interval high Tx interval lowered 3. Press the H/V/S key to select the [S] tab. 4. Select [TX Interval] then push the left-click button. 5.
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4. SLANT MODE 5. Select S or T then push the left-click button to adjust the setting. The setting range is 0-3. (Strong: 3→1→2 :Weak) 6. Select [Quit] on the setting box then push the left-click button to close the box. 7. Long-press the MENU/ESC key to close all menus. 4.10.4 Shift TX frequency If the interference can not be suppressed by the interference rejector or change in TX interval, shift the Tx frequency with the [Frequency] menu. 1. Press the MENU/ESC key to show the main menu. 2.
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4. SLANT MODE 3. Press the H/V/S key to select the [S] tab. 4. Select [Noise Limiter] then push the left-click button. 5. Select S or T then push the left-click button to adjust the setting. The setting range is 0 to 15. 6. Select [Quit] on the setting box then push the left-click button to close the box. 7. Long-press the MENU/ESC key to close all menus. 4.10.6 Reverberation You may choose the length of reverberation for the echo signal, with [Reverberation] in the [TX/RX Setting] menu ([S] tab).
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4. SLANT MODE 4.10.8 How to suppress sidelobes False echoes produced by sidelobes may appear on the display depending on the distribution pattern of a school of fish and the positional relationship between it and a marine object (reef, etc.) and wake reverberation. To reduce these sidelobes, use [Sidelobe Sup.] on the [TX/RX Setting] menu ([S] tab). For normal suppression, use [Sidelobe Sup.A]. The setting range is -3 to 3 and 0 is the default setting. The higher the value the greater the suppression.
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4. SLANT MODE Description of Beam Width menu Beam Control: Control the beamwidth according to option selected. Manual: Select this item to enable adjustment of the other items in this menu. Range: The beamwidth is automatically controlled with the range setting. Tilt: The beamwidth is automatically widened as tilt goes deep. This is convenient for keeping a watch on fish that ascend and descend. TX Beam Width*: Increase the value to display close-range echoes clearly. Hor.
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4. SLANT MODE 6. Select [Tracking Method] then push the left-click button. 7. Select [Target Mark] or [Fish] then push the left-click button. 8. Select [Quit] on the setting box then push the left-click button to close the box. 9. Long-press the MENU/ESC key to close all menus. 4.12.2 Fish mode The automatic echo target lock function automatically tracks the operator-selected school of fish.
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4. SLANT MODE 2. On the slant display, use the trackball to select the location to track. 3. Press the TARGET LOCK key. Tilt, range and vertical bearing are automatically adjusted to track the location. Using the figure above as an example, the target lock mark is placed on location E. Then, the equipment remembers the location of E and automatically changes the tilt angle as the ship moves from position A through D. As long as the school of fish E is stationary its echo is kept displayed on the screen. 4.
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4. SLANT MODE 4.13 How to Detect Schools of Fish Aurally Sometimes you may be preoccupied with other tasks and unable to concentrate on watching the sonar picture. In such cases it would be a good choice to use the audio function. This function enables you to monitor echoes from schools of fish and bottom through the external speaker. 4.13.1 How to set the bearing In the default setting, the audio function is on and the audio sector is 30°. 1.
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4. SLANT MODE 4. Select [Audio Sector] then push the left-click button. 5. Select the desired sector then push the left-click button. 6. Select [Quit] on the setting box then push the left-click button. 7. Long-press the MENU/ESC key to close all menus. 4.13.3 Reverberation for audio signal You may choose the length of reverberation of the audio signal, with [Reverberation] on the [Alarm & Audio] menu. The larger the value the longer the reverberation, which makes it easier to hear the audio signal.
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4. SLANT MODE 10. Operate the trackball to select the ending point. The display paints a fan-shaped alarm zone. The alarm range appears on the display as shown below. << Alarm Zone >> Move trackball cursor to origin of alarm zone and left click. Press [R/B] key or right click to cancel. << Alarm Zone >> Move cursor to the end of alarm range and left click. Press [R/B] key or right click to cancel. Fish alarm range 11. Push the left-click button. 12. Long-press the MENU/ESC key to close all menus.
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4. SLANT MODE 3. To move the own ship mark back to the screen center, press the key again. School of fish School of fish Press OFF CENTER key Own ship mark Own ship mark moves to trackball position, Set cursor here, for example, Note: You can also move the display by long-pressing the left-click button. To restore the normal display, long-press the right-click button.
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4. SLANT MODE 4.16 How to Compare Concentration of School of Fish 4.16.1 How to compare with the fish estimate mark You can get an estimate of the volume of two schools of fish by using the two ESTIMATE keys as follows: 1. Operate the trackball to place the cursor on a school of fish, and then press the ESTIMATE 1 key. The estimate mark appears on the school of fish. Relative volume is shown by a figure between 0 and 100, below the estimate mark.
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4. SLANT MODE 2. Select the circle cursor and push the left-click button. The [Select Mark] window disappears, then the cursor is changed to the circle cursor. 㪏㪊㫄 Diameter of the circle cursor 3. Place the circle cursor on the school of fish. 4. Rotate the wheel to adjust the size of the circle cursor. Set the school of fish in the circle cursor to estimate correctly. The diameter of the circle cursor is displayed below the circle cursor. 5.
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4. SLANT MODE 4.17 How to Measure the Speed of a School of Fish To ensure a good haul, it is important to estimate the direction and speed of the school of fish before shooting the net. You can do this with the FISH key. With tidal current data plus fish speed data, you can determine the timing of the net shooting more efficiently. This function requires speed and heading data. 4.17.1 How to measure the speed of a school of fish 1.
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4. SLANT MODE 4.17.2 How to delete fish marks Fish marks can be deleted individually with the DELETE MARK key or by earliest entry from the menu. How to delete fish marks with the DELETE MARK key 1. Use the trackball to place the cursor on the fish mark you want to erase. The color of the fish mark changes from white to red when the fish mark is correctly selected. 2. Press the DELETE MARK key to delete the fish mark.
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4. SLANT MODE 4.18 Event Mark The event mark is useful for finding the horizontal range, depth and bearing to a location some distance from current position. There are two types of the event marks: event mark 1 ( ) and event mark 2 (’ ). Each marks can be inscribed on the slant mode display up to 20 marks. This function requires speed and heading data. When the event mark is entered, latest event mark ( or ) is displayed.
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4. SLANT MODE 4.18.2 How to erase an event mark Event marks can be deleted individually with the DELETE MARK key or by earliest entry from the menu. Delete an event mark with MARK DELETE key 1. Use the trackball to place the cursor on the event mark you want to erase. The color of the mark changes from white to red when the mark is correctly selected. 2. Press the DELETE MARK key to delete the mark. Delete an event mark from the menu 1.
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4. SLANT MODE 4.19 Net Course Mark Before shooting the net, decide the shoot timing considering tide direction, distance to the school of fish and moving direction of the school of fish. Use the net course mark as a guide to decide the timing. This function requires speed and heading data. How to enter the net course mark 1. Press the MENU/ESC key to show the main menu. 2. Select [Others] then push the left-click button. 3. Select [Display Setting] then push the left-click button. 4.
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4. SLANT MODE 4.20 Net Data With net sonde connection you can observe net data after the throwing of the net. Press the SHOOT key just upon throwing the net into the water to display the net shoot data and net depth data. To erase the data, press the key again. Note: To enable this feature, set Event Key to Event in the Mark Display menu. NET SHOOT DATA Distance run from shooting of net Time elapsed from shooting of net B 202m 193m 59m 296° 㪊㪌㪇 0.
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4. SLANT MODE Display Setting menu Gain Offset: Adjusts gain level. If the GAIN control on the front panel does not provide satisfactory gain adjustment, enter an offset here. The setting range is 0-12. Signal Level: Contaminated water or reflections from plankton may be painted on the screen in green or light-blue. These echoes may be erased in order of strength. The setting range is 0-15; 0 corresponds to the weakest color. Color: Select color arrangement to use.
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4. SLANT MODE 4.22 How to Interpret the Slant Display 4.22.1 Bottom echoes When the tilt angle is set at 90 degrees with the sector center faced dead ahead, the pictures illustrated below will appear on the screen. The bottom echo is represented on the screen as a thick line which realistically shows the bottom contour. When the tilt angle is decreased, the bottom trace becomes wider and weaker.
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4. SLANT MODE 4.22.2 School of fish A school of fish appears as a mass of echoes on the screen. The color of the mass shows the density of the fishes and the size of the mass how they are distributed. In the following figures, the same school of fish is observed with two different tilt angles. From the left figure, the operator can know the horizontal distribution of the school of fish and from the right figure the vertical distribution.
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4. SLANT MODE 4.22.3 False echoes Sea surface reflections In the half-circle display, sea surface reflections appear as a thick line extending across the own ship mark regardless of tilt angle. When the sonar is used with a narrow tilt angle, the sea surface reflections cover an extended area as illustrated below. Sea surface reflections Wake A wake produced by own ship or another ship can be a strong reflecting object when a narrow tilt angle is used.
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4. SLANT MODE False echo by sidelobe An ultrasonic wave is emitted only in the direction set by the TILT control, however there are some emissions outside the main beam. These are called sidelobes. The energy of the sidelobe is fairly weak but when the water is comparatively shallow and the bottom is rocky and hard, strong signals are detected by the sidelobe. These are represented on the display as a false echo as shown below.
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5. NUMERIC/GRAPHIC DATA DISPLAY 5.1 Numeric/Graphic Data Display This display provides comprehensive numeric/graphic data and appears with the horizontal and vertical displays, at the right side of the display. 321° 335° 12.
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5. NUMERIC/GRAPHIC DATA DISPLAY 5.2 Numeric, Graphic Data Description When a data is lost its last-entered value is shown in red. Data displays can be turned on or off through the [DATA DISPLAY] menu. Numeric/ Graphic item Heading Course Speed Position of the ship Position sensor Depth Current Net depth 5-2 Description Shows heading input from heading sensor. Shows ship course fed from numeric/graphic indication. Shows ship speed fed from a Numeric/graphic indication.
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5. NUMERIC/GRAPHIC DATA DISPLAY Numeric/ Graphic item Fish histogram Water temp. Water temp. graph Info on school of fish Description Shows signal strength concentration of fish estimate mark inscribed on horizontal display, slant display Shows water temperature input from a temperature sensor. Shows water temperature over time. Horizontal axis: time, Vertical axis: °C(°F) Shows information about school of fish during target lock operation.
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5. NUMERIC/GRAPHIC DATA DISPLAY This page is intentionally left blank.
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6. HOW TO CUSTOMIZE THE EQUIPMENT 6.1 User Menu You may program 20 often-used menu items to the user menu area in the menu. The default user menu contains, for the horizontal display, pulse length, TX power, TVG near, TVG medium, TVG far, AGC, 2nd AGC, echo average, color and echo average. Push the left-click button. User menu items * *: This means this item is programmed to H1 menu. 6.1.
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6. HOW TO CUSTOMIZE THE EQUIPMENT 4. Select [Register] then push the left-click button. The selected item is registered, and shown at the bottom of the menu. The order of items in the [USER] menu can be changed by drag and drop. Note: If 20 items are already registered to the user menu the following message appears. Delete unnecessary items from the user menu and then repeat this procedure to register different item. Press the MENU/ESC key to close this message. 5.
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6. HOW TO CUSTOMIZE THE EQUIPMENT 6.2.1 How to execute a program 1. Press desired function key to show the applicable dialog box. When the F8 key is pressed 2. Press the same function key again within five seconds to execute the function. The dialog box automatically disappears in five seconds. You can also close the dialog box manually by pressing any function key other than the one pressed at step 1. 6.2.
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6. HOW TO CUSTOMIZE THE EQUIPMENT 6.2.3 How to erase programs 1. Press the MENU/ESC key to open the main menu. 2. Select [Others] then push the left-click button. 3. Select [Register] then push the left-click button. 4. Select [Clear F-KEY Setting] then push the left-click button. 5. Select [Changeable] then push the left-click button. 6. Select the function key for which you want to erase its program then push the left-click button. Repeat this step for other function keys. 7.
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6. HOW TO CUSTOMIZE THE EQUIPMENT 2. Press the MENU/ESC key to close the menu. 3. Press and hold down the applicable key of the control unit and then press a function key of the remote controller. When the registration is completed, the audio alarm sounds. 4. Operate the function key programmed to confirm functionality. 5. Repeat steps 1 to 4 to program the another function key. 6.
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6. HOW TO CUSTOMIZE THE EQUIPMENT *: H/V Interlock: Effective on both H and V displays. H/V Individual: Select the display to use with the H/V/S key. (In operative on the slant display). 5. Do one of the following then push the left-click button. • For H/V Interlock: Select [Assign User Prog]. • For H/V Individual: Select Assign [User Prog-H/S] or [Assign User Prog-V]. 6. Select [Changeable] then push the left-click button. One of the following displays appears depending on your selection.
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7. OTHERS MENU This chapter provides descriptions for the [Others] menu. To display the [Others] menu, press the MENU/ESC key, select [Others] then push the left-click button. The [Record/Recall] menu is described in Chapter 8. Also, menu items shown in gray cannot be accessed. 7.1 Erase Marks Menu The [Erase Marks] menu lets you delete selected marks and track. 1. Select [Erase Marks] on the [Others] menu then push the left-click button. This menu can be also opened from the right-click pop up menu.
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7. OTHERS MENU 7.2 Wheel Setting Menu One of the following functions can be assigned to the scrollwheel. • Tilt angle • Gain • Range • Turn Angle (Slant display only) • Bearing (Vertical display only) 1. Select [Wheel Setting] on the [Other] menu then push the left-click button. This menu can be also opened from the pop-up menu. 2. Select [H Mode], [S Mode] or [V Mode] then push the left-click button. H Mode S Mode V Mode 3.
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7. OTHERS MENU 7.3 Display Setting Menu The [Display Setting] menu sets various display-related items according to operator’s preference. To display the menu, open the main menu then select the [Others] and [Display Setting] menus. TX/RX Mode: Select how to transmit and receive in combination displays. [Alternative] executes Tx and Rx one display at a time. [Multi] simultaneously executes Tx and Rx on each display. This item is inoperative (shown in gray) in the following cases. • [Sidelobe Sup.
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7. OTHERS MENU H2/S Display: Selects the combination mode of horizontal and slant displays: Landscape, Portrait, or Inset. 2nd Monitor Setting: When two monitors are connected, select the combination mode for the sub-display; Landscape or Portrait. This function is available only when [Dual Display] is selected at [2nd Monitor Setting] on [Others]-[Initial Setting] menu. V-Scan Aspect Ratio: Selects the type of the horizontal to vertical ratio to use on the V-display; Fixed or Flexible.
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7. OTHERS MENU 7.4 Alarm & Audio Menu The [Alarm & Audio] menu sets the fish alarm and the audio bearing mark sector. To show this menu, open the main menu, then open the [Others] and [Alarm & Audio] menus. Fish Alarm: Turns the fish alarm function on or off. The default setting is off. Alarm Level: Sets the minimum echo color which triggers the fish alarm. The setting range is 0-30. Alarm Zone: Sets fish alarm zone. For further details see page 2-27. Ship SPD Alarm: The default setting is ON.
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7. OTHERS MENU 7.5 Register Menu The [Register] menu provides various programming functions. To show this menu, select [Register] on [Others] menu then push the left-click button. [Sel User Prog] = [H/V Interlock] Sel User Prog/Assign User Prog/Auto User Prog Sel/Auto User Prog: Programs the USER PROG control. For further details see section 6.3. Display Mode: Selects the display mode to use. F-KEY List: Shows the functions assigned to each function key.
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7. OTHERS MENU 7.6 Initial Setting Menu The [Initial Setting] menu sets up mark size, current vector, net sonde, target lock, etc. 1. Press the MENU/ESC key to show the main menu. 2. Select [Others] then push the left-click button. 3. Select [Initial Setting] then push the left-click button. 4. Select [Changeable] then push the left-click button. For serviceman For Target Lock and Test, see page 2-21 and page 9-8, respectively. Remote BOX LED: Turns ON/OFF the LED of the remote controller (option).
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7. OTHERS MENU Monitor Setting menu The [Monitor Setting] menu sets the function of dual monitors. Select [Monitor Setting] on the [Initial Setting] menu then push the left-click button. 2nd Monitor Setting: Selects the display format for the sub monitor (Off, Dual Display, Sub Display). • OFF: Select if a single monitor is connected. • Dual Display: Main and sub monitors show different pictures in the combination display mode.
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7. OTHERS MENU Mark Display menu The [Mark Display] menu turns on/off marks. Select [Mark Display] on the [Initial Setting] menu then push the left-click button. Heading Mark: The heading mark is a dashed line which indicates the heading in all presentation modes. It extends from own ship position to the outer edge of the display and appears at zero degrees in the head-up mode. It changes the orientation depending on ship’s orientation in the northup, course-up and true motion modes.
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7. OTHERS MENU Data On Track: Shows depth or water temperature on the ship’s track. Track 120 124 Depth (or water temperature) 125 Net Move Plot: Shows predicted net movement against three current layers over time. Automatically turned on or off with the net shoot mark. Requires the current data. Own ship’s track Net movement plot for three current layers Fish Mark Connect: You may connect fish marks with a line to show the order in which they were entered.
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7. OTHERS MENU Mark Size menu The [Mark Size] menu lets you select the size and shape of the marks. Select [Mark Size] on the [Initial Setting] menu then push the left-click button. Trackball Mark: Selects size and appearance of cursor. The choices are large and small “+” mark, and large and small “ “ mark. Target Lock Mark: The target lock mark size is available in normal, large, or small. Target Vector: You may display the target vector in short, normal, or long lengths.
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7. OTHERS MENU Data Display menu This menu turns on/off alphanumeric data. Select [Data Display] on the [Initial Setting] menu then push the left-click button. Range/Bearing: Turns on/off the range and bearing data which appears when the range/bearing marks are turned on. Fishing Area: Not used. Cursor Position: Turns on/off the cursor position (latitude and longitude) display. (Requires navigation data.
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7. OTHERS MENU Current Vec & Wind menu The [Current Vec & Wind] menu sets up tidal current and wind data. Select [Current/ Wind] on [Initial Setting] menu then push the left-click button. Current Data: Selects how to display current data; absolute or in relation to layer 1, layer 2 or layer 3. On Own Ship Mark: Shows or hides the current mark on the own ship mark. On Ship Pos Mark: Shows or hides the current mark on the own ship position mark.
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7. OTHERS MENU Net SONDE Setting menu The [Net SONDE Setting] menu sets up the net sonde. Select [Net SONDE Setting] on [Initial Setting] then push the left-click button. * * *Setting cannot be adjusted after the net is thrown. Number Of XMTR: Sets number of transmitter units used, from 0-10. When the total value of [XMTR Distance] is smaller than the setting value of [Net Length], max. 10 transmitter units can be used. XMTR Distance: Sets the distance between transmitters.
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7. OTHERS MENU Net Shooting Setting menu The [Net Shooting Setting] menu sets up net shoot parameters. Selects [Net Shooting Setting] on [Initial Setting] then push the left-click button. Net Diameter: Sets net diameter in increments of 10 meters. Setting range is 200 m to 1000 m. Tilt Interlock: Turns on/off interlocking of diameter of net course mark with tilt angle.
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7. OTHERS MENU Initialization menu Select [Initialization] on [Initial Setting] menu then push the left-click button to show the [Initialization] menu. Save Ship/Org: All menu settings are saved. Recall Ship/Org: Recalls the saved menu settings. Default settings are memorized in the internal memory. Use this item to recall the setting then rotate the USER PROG control. Set To Default: Restores all default menu settings. Item Attribution: Locks/unlocks protected menu settings.
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8. RECORD/RECALL OPERATION You can take still images of the display and store them internally. 8.1 How to Specify Where to Save Still Images You can specify where to save still images as follows: 1. Push the right-click button on the numeric/graphic data display to show the popup menu. 2. Select [Record/Recall] then push the left-click button. 3. Select [Destination To Save] then push the left-click button. 4. Select [Reference] on the Destination To Save window then push the left-click button.
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8. RECORD/RECALL OPERATION 6. Select [OK] then push the left-click button. 7. Long-press the MENU/ESC key to close all menus. 8.2 How to Save Still Image You can save the picture on the display as a still image. Single display 1. Push the right-click button on the numeric/graphic data display to show the popup menu. 2. Select [Record/Recall] then push the left-click button. 3. Select [Record Still Image] then push the left-click button.
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8. RECORD/RECALL OPERATION How to display the latest still image 1. Push the right-click button on the numeric/graphic data display to show the popup menu. 2. Select [Record/Recall] then push the left-click button. 3. Select [Recall Still Image] then push the left-click button. The latest still image is shown on the display. Note: The window can be resized, and moved by drag and drop. Also, you can zoom in/out with the scrollwheel. 4.
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8. RECORD/RECALL OPERATION 8.4 How to Save Settings The FSV-85 can store the setting information in use as shown below. 1. Push the right-click button on the numeric/graphic data display to show the popup menu. 2. Select [Record/Recall] then push the left-click button. 3. Select [Setting File] then push the left-click button. 4. Select [Save] then push the left-click button. The file is given a name (“FSV85_yyyy_mm_dd_hh_mm_ss.ini”) then shown in the box. Pull-down list Progress bar 5.
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8. RECORD/RECALL OPERATION 8.5 How to Load Files 8.5.1 How to load the setting information This section shows you how to load the setting information saved at section 8.4. 1. Push the right-click button on the numeric/graphic data display to show the popup menu. 2. Select [Record/Recall] then push the left-click button. 3. Select [Setting File] then push the left-click button. 4. Select [Load] then push the left-click button. Destination list Progress bar 5. Select the file to load. 6.
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8. RECORD/RECALL OPERATION 8.5.2 How to replay setting information You may want to replay setting information to set up the equipment according to target fish or fishing ground. 1. Push the right-click button on the numeric/graphic data display to show the popup menu. 2. Select [Record/Recall] then push the left-click button. 3. Select [Setting File] then push the left-click button. 4. Select [Load User Prog] then push the left-click button.
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8. RECORD/RECALL OPERATION 8.6 How to Delete Files You can delete unnecessary files as shown below. 1. Push the right-click button on the numeric/graphic data display to show the popup menu. 2. Select [Record/Recall] then push the left-click button. 3. Select [Delete Data] then push the left-click button. Destination list 4. Select the file to delete. 5. Select [Delete] then push the left-click button. The massage "Are you sure to delete?" appears. 6. Select [OK] then push the left-click button.
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9. MAINTENANCE, TROUBLESHOOTING This chapter provides maintenance and troubleshooting procedures for the operator. NOTICE WARNING Do not open the equipment. Do not apply paint, anti-corrosive sealant or contact spray to plastic parts or equipment coating. This equipment uses high voltage that can cause electrical shock. 0nly qualified persons can work inside the equipment. Those items contain products that can damage plastic parts and equipment coating. ELECTRICAL SHOCK HAZARD 9.
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9. MAINTENANCE, TROUBLESHOOTING 9.2 Hull Unit Maintenance Care for the hull unit by following the procedures shown below. Apply MOLYTONE grease #2 every six months. Raise transducer and coat main shaft with Daphne Eponex Grease No.2 (IDEMITSU KOSAN CO.,LTD.*1) every six months. Dry dock ship and clean transducer face yearly. Apply single coat of "MARINE STAR 20 Mod (Red-N)" anti-foulant to transducer face to keep marine life off the transducer. Do not paint metallic parts such as the transducer flange.
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9. MAINTENANCE, TROUBLESHOOTING 9.3 How to Replace Fuses The fuses in the processor unit, transceiver unit and hull unit protect them from overcurrent and equipment fault. If the power cannot be applied, first check the fuse in the processor unit and transceiver unit. If the power still cannot be turned on, have a qualified technician check the fuses in other units.
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9. MAINTENANCE, TROUBLESHOOTING 9.5 How to Clean the Filter in the Processor Unit Clean the filter in the Processor Unit when the filter becomes dusty. Remove the filter and clean it with water and a mild detergent. Let the filter dry then set it to the Processor Unit. Filter Processor unit 9.6 How to Clean the Trackball on the Control Units If the trackball does not roll smoothly it may require cleaning. Do the following to clean the trackball. 1. Turn the ring on the trackball 45°.
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9. MAINTENANCE, TROUBLESHOOTING 9.7 Troubleshooting The table below provides common symptoms of equipment troubles and the means to rectify them. Troubleshooting Symptom Cannot turn on power. Check, remedy • Check cables between transceiver unit, processor unit and monitor unit. • Check ship’s mains. • Have a qualified technician check the fuses inside the transceiver unit. Bottom echo becomes irregular. • Rough seas. Distance to the bottom changes due to rolling and pitching. • Long range selected.
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9. MAINTENANCE, TROUBLESHOOTING 9.8 Warning Messages The table below shows the warning messages which may appear on the display. All warning messages are accompanied by an audio alarm, which you may silence with the R/B AUDIO key. Warning messages Message Power supply <> RETRACT TRANSDUCER AND TURN OFF POWER. CHECK SHIP’S MAINS VOLTAGE. PRESS R/B KEY TO TURN OFF ALARM.
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9. MAINTENANCE, TROUBLESHOOTING Message <> TRANSDUCER IS KEPT AT WRONG POSITION. SET BACK TRANSDUCER POSITION TO NORMAL BY USING ↑ OR ↓ KEY. PRESS R/B KEY TO TURN OFF ALARM. <> TRANSDUCER IS KEPT EXTENDED. MAX ALLOWABLE SPEED FOR EXTENDED TRANSDUCER IS 18 KT. PRESS R/B KEY TO TURN OFF ALARM. <> MAX ALLOWABLE SPEED DURING RAISING/LOWERING TRANSDUCER IS 15 KT. PRESS R/B KEY TO TURN OFF ALARM.
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9. MAINTENANCE, TROUBLESHOOTING 9.10 Status Messages Status messages appear at the screen center to alert the operator. These are as below. Status messages and their meanings Status message TX OFF RAISE/LOWER TEST* Meaning Transmission turned off from the menu. Raise/lower command received from the control unit in normal operation, to manually test raise/lower switch in hull unit. Raise/lower keys on the control unit are inoperative during the hull unit test. *Not displayed when TX is OFF. 9.
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9. MAINTENANCE, TROUBLESHOOTING 9.11.2 Board test The board test checks all the circuit boards in the system. Select [Board Test] from the [Test] menu to do this test. BOARD TEST MPU-001-FSV85 (1) 105- 0839-XX.XX TRCPU-0 RAM = OK EWF = Enable USB = USB = Monitor1 = 1280x1024 Monitor2 = LAN MAC address (2) TRX80 = **-**-**-**-**-** BMF-0 HDD = ***** PCI = ***** CPU Temperature = 32.0 C BOARD Temperature = 20.0 C CPU Fan Speed = 4800rpm BATTRY = 3.
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9. MAINTENANCE, TROUBLESHOOTING 9.11.3 Panel test The panel test checks the keys, controls and trackball of the control unit. Select [Panel Test] from the [Test] menu to do this test. PANEL TEST 䋪 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 X=0 0 0 0 0 0 䋪 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Y=0 0 0 0 0 0 0 0 0 0 0 d=0 X=0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Y=0 0 0 0 0 d=0 Press MENU/ESC key to cancel.
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9. MAINTENANCE, TROUBLESHOOTING 9.11.4 Test pattern The test pattern test checks for proper display of colors. Select [Test Pattern] from the [Test] menu to do this test. Use the MODE key to change the test pattern. PRESS MENU KEY TO QUIT TEST MODE. PRESS MODE KEY TO CHANGE TEST PATTERN. WHITE BLACK RED GREEN BLUE Black 9.
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9. MAINTENANCE, TROUBLESHOOTING 9.12.1 How to raise the transducer automatically 1. Turn off the switchboard, transceiver unit and hull unit from the ship’s mains breaker. You can force-quit the system by long-pressing the POWER OFF ( approx. 10 seconds. ) switch for 2. Check if the net or other object is caught in the transducer. 3. Look through the lid on the raise/lower control box in the hull unit to check if the motor breaker is OFF.
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9. MAINTENANCE, TROUBLESHOOTING 9.12.2 How to raise the transducer manually 1. Open the lid on the raise/lower control box of the hull unit and turn off the motor breaker. Confirm that the power lamp is off. (See the illustration above for location of motor breaker and power lamp.) 2. Unscrew two screws to remove the cover. 3. Attach the ratchet wrench to the motor shaft, referring to the illustration below. Ratchet wrench Raise Lower Remove cover Motor 4.
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APPENDIX 1 MENU TREE [MENU/ESC] key TX/RX Setting U: No /F: Yes Gain Setting U: No/F: Yes Display Setting U: No/F: Yes 1 TX Interval (External KP, 1 to 9; 9) [H1/H2/S], U: Yes/F: Yes U: Items which can be TX Pulse Length (0 to 9; 7) [H1/H2/S/V], U: Yes/F: Yes programmed to the user menu. F: Items which can be TX Power (0 to 9; 9) [H1/H2/S/V], U: Yes/F: Yes programmed to a function key. Frequency, U: No/F: Yes Freq Shift1 (-65 to 65; 0) [H1/H2/S/V], Defaut settings in bold italic.
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APPENDIX 1 MENU TREE 1 Picture Setting U: No/F: Yes Others U: No/F: Yes 2 AP-2 Echo Average (0 to 7; 2) [H1/H2/S/V], U: Yes/F: Yes Int Reject (0 to 3; 0) [H1/H2/S/V], U: Yes/F: Yes Smooth Echo RNG (0 to 7; 3) [H1/H2/S/V], U: Yes/F: Yes Smooth Echo CIR (0 to 5; 1) [H1/H2/S/V], U: Yes/F: Yes Erase Marks Event Mark1 (Execute), U: Yes/F: Yes U: No/F: Yes Event Mark2 (Execute), U: Yes/F: Yes Fish Mark (Execute), U: Yes/F: Yes Own Ship Pos Mark (Execute), U: Yes/F: Yes Ship's Track (Execute), U: Yes/F: Yes W
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APPENDIX 1 MENU TREE 2 Others Record/Recall U: No/F: Yes Initial Setting U: No/F: Yes 3 Still Image, U: Yes/F: Yes Setting File, U: No/F: Yes Save, U: No/F: No Load, U: No/F: No Load User Prog., U: No/F: No Delete Data, U: No/F: No Destination To Save, U: No/F: No Record Still Image (Execute), U: No/F: Yes Recall Still Image (Display), U: No/F: Yes Menu Box Transp.
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APPENDIX 1 MENU TREE 3 Others 4 AP-4 Initial Setting Current Vec & Wind, U: No/F: Yes Current Data (Water Current, Rel to Layer1, Rel to Layer2, Rel to Layer3), U: No/F: Yes On Own Ship Mark (OFF, ON), U: No/F: No On Ship Pos Mark (OFF, ON), U: No/F: No On Net Shoot Mark (OFF, ON), U: No/F: No Current Flow Dir (To, From), U: No/F: No Wind (OFF, Relative, Absolute) U: No/F: Yes Net SONDE Setting, U: No/F: Yes Number Of XMTR (0 to 10; 3), U: No/F: No XMTR Distance, U: No/F: No End Of Net To S1 (0 to 1000
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APPENDIX 1 MENU TREE 4 Others Initial Setting Shortcut Menu TX Pulse Length -H1 TX Power -H1 TVG-Near -H1 TVG-Medium -H1 TVG-Far -H1 AGC -H1 2nd AGC -H1 Color -H1 Echo Average -H1 Test, U: No/F: Yes Board Test (Execute), U: No, F: No Panel Test (Execute), U: No, F: No Test Pattern (Execute), U: No, F: No RX Test (Execute), U: No, F: No Noise Test (Execute), U: No, F: No TX (OFF, ON), U: Yes/F: Yes Initialization, U: No/F: Yes Save Ship's Org (Execute), U: No, F: No Recall Ship's Org (Execute), U: No/F:
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FURUNO FSV-85 SPECIFICATIONS OF COLOR SCANNING SONAR FSV-85 1 1.1 1.2 1.3 1.4 1.5 2 2.1 2.2 2.3 2.4 2.5 3 3.1 3.2 3.3 3.4 3.5 3.6 3.
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FURUNO 4 FSV-85 HULL UNIT Motion sensor Raise/lower Ship’s speed allowance time (sec) (at R/L operation) attached blank 500/800 FSV-8x31/32 FSV-8x33/34 21 18 kn 800/1100 FSV-8x41/42 FSV-8x43/44 28 （15 kn） x: 4 or 5. FSV-8431 series for 80kHz, FSV-8531 series for 70kHz. Travel (mm) 5 5.1 INTERFACE CIF input sentences 5.
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INDEX Numerics 2nd AGC horizontal display .................................. 2-13 slant display ............................................ 4-9 vertical display....................................... 3-10 2nd AGC distance horizontal display .................................. 2-13 slant display .......................................... 4-10 2nd AGC stern horizontal display .................................. 2-13 slant display .......................................... 4-10 2nd AGC type horizontal display .
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INDEX programming ............................................6-3 Fuse replacement ......................................9-3 G GAIN control ............................................1-11 Gain offset horizontal display ...................................2-38 slant display ...........................................4-32 vertical display........................................3-16 H Heading mark.............................................7-9 Horizontal mode full-screen display ............................
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INDEX Target lock dimensions, horizontal display .............. 2-24 dimensions, slant display ...................... 4-19 fish mode, horizontal display ................. 2-22 fish track plot ......................................... 7-10 mark interlock, horizontal display .......... 2-23 mark interlock, slant display .................. 4-19 mode selection, horizontal display ........ 2-21 smoothing, horizontal display ................ 2-24 smoothing, slant display ........................
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