![](/images/new-backgrounds/1146951/14695195x1.webp)
4.Select Tracking Method, and then press the [MENU] key.
5.Select method desired.
6.Press the [END] key several times to close the menu.
Tracking target lock mark
1.Operate the trackball to place the trackball mark on the fish school you want to track.
2.Press the [TARGET LOCK] key to light the lamp above it.
The target lock mark (
) appears on the fish school and tracking begins.
Tilt angle is automatically changed to keep the target lock mark location within the sonar beam.
3. To stop tracking, press the [TARGET LOCK] key again.
Note 1: If the target goes out of the picture or the tilt angle is greater than 60 degrees the lamp above the [TARGET LOCK] key flashes to call your attention.
Note 2: Target lock position and data are calculated according to tilt angle.
Note 3: The bearing mark moves to the target lock mark loca- tion when target lock becomes active. Bearing to the target lock mark is shown.
Note 4: Target lock is temporarily disabled when the distance to the tracked fish school is less then 40 m. It is resumed once the distance becomes more than 40 m.
Note 5: The target lock works up to a tilt angle of 60 degrees. In the drawing below, the tilt angle is fixed at 60 degrees between B and C. During this period, however, calculation is continu- ously being performed. When own ship comes to point C, target lock is resumed.
ABCD
60° 60°
Figure 7-4 Target lock and tilt angle
Color Scanning Sonar
00080806200
Safety Instructions
Table of Contents
Function Keys
Maintenance
Features
Foreword
Word to CSH-73 Owners
System Configuration
Standard
Control Layout on Display Unit and Remote Control Box
Control Description
Power Transducer
Main Panel
Control Function
Sub Panel
Control Function
Sub Panel 2 data setting window
This example shows settings of TVG and TX
Main Setting Description Normal Range Sub
Main Setting Description Normal Sub Range
Remote Control Box
+ +
Turning the Power On/Off
Adjusting Screen Brilliance, Control Panel Backlighting
Operational Overview
Lowering the Transducer
Selecting a Display Mode
Mode
Normal
Description
Setting the Tilt Angle
Selecting a Display Range
Adjusting the Gain
Measuring Range and Bearing to a Target
Fine Tuning the Picture
Eliminating Unwanted Feeble Echoes
How to adjust TVG
Principle of TVG
AGC data setting window SIGNAL, Signal
Pulselength data setting window TVGTX, PL
2AGC data setting window SIGNAL, Signal Process
Suppressing Seabed Tail
Data setting window TVGTX, Output
Rejecting Sonar Interference and Noise
Changing Tx cycle data setting window Tvgtx
Identifying noise source
Setting F-shift data setting window Sonrbeam
Noise limiter data setting window SIGNAL, Signal Process
Adjusting Beamwidth
Menu Application
HOR
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Marks, Data and Display Mode
Normal display mode
Marks and Data
Normal display mode w/text
Echo sounder combination display
Permanently Displayed Marks and Data
History display
Erasable Marks and Data
Mark/Data Description
Range and Bearing Mark Data
Mark Description
Net sonde transmitters with bars extending from the marks
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Menu How to open
User Menu Overview
User Menu Operation
Menu screen location and display mode
User Menu Hist DSP/GRPH
User Menu Description
Menu Menu Item Description
Current VEC
Save Picture
Function Keys
Programming the Function Keys
Function Key Fine Tuning
Replaying a Function Key
Saving Function Key Settings to a Memory Card
Replaying Function Key Settings from a Memory Card
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Advanced Level Operation
Finding Fish School Center
Tracking a Fish School target lock
Tracking a fish school
Choosing target lock mode
Target lock mark appearance
Erasing target lock mark
Tracking target lock mark
Target lock and tilt angle
Setting target lock conditions
System Menu Target Lock
Description of target lock items
Detecting Fish Schools Aurally
Fish Alarm
How to set the fish alarm zone
How to relocate fish schools
Relocating Fish School for Easy Observation
Comparing of Fish School Concentration
Estimate marks and their data
How to measure fish speed
Measuring Fish School Speed
Event Mark
10 Event marks
Entering an event mark
Erasing an event mark
True Motion Display
12 True motion display
Plotting Net Location Mark
13 Net location mark
Setting Distances Between Net Sonde Transmitters
How to set net sonde transmitter distances
Observing Net Behavior
16 Net behavior
Port/Starboard, Horizontal Slice Displays
Port/Starboard display
Horizontal slice display
18 Horizontal slice display
Turning Marks, Data On/Off
Turning marks on/off through the user menu
SAVING, Replaying Picture
Initializing Memory Cards
Data to Save Saving Method Saving to
Saving the Picture
Transferring Echo Data from Internal Memory to Memory Card
Net shooting data contents
Saving Net Shooting Data
How net shooting data is saved
Transferring net shooting data to memory card
Deleting Memory Card Contents
Replaying Saved Data
Interpreting the Display
Seabed Echoes
Fish Schools
Surface Fish School
Bottom Fish School
Sea Surface Reflections
Wake
False Echo by Sidelobe
Noise and Interference
Overvoltage Warning
Unretracted Transducer Warning
How to manually raise the transducer
Self Tests
Opening the Self Test Menu
Self Test Description
Single test
Continuous test
Panel test
Color test
Gray test
SIO test
Interface Unit CS-120A Self Test
Interface unit CS-120A, cover opened
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Maintenance
Display Unit Maintenance
Hull Unit Maintenance
Zinc block near the transducer must be replaced yearly
Special Menu Description
System Menu Description
Menu Description
BRG Readout
Mark Size
Defaults
ES/NET REC
Hist Display
Interlock
Data SET Menu Description
Color Curve
Menu
Change Color
NET Shoot
Plan
NET Sonde
NET Plot Corr
Init SET/TEST Menu Description
Echo Test
NET REC
Others Event KEY
Menu Tree
User Menu
Data SET Menu
Init SET/TEST Menu
System Menu
From Previous
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Specifications
SP-1
Display
SP-2
Features
SP-3
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Index
13-4
IN-2