ManualOperator

Dredge Function

Fig.1

Dredge

Quality

Fig. 2

When CTS is switched from 0 to 5 volts, quality is switched from 0 to 1 and CTS becomes equal to 0 volt, then the quality becomes equal to 2 during the time out (1). This time out may be defined by user. Get more information on "How To Set Up Time Out"

Inactive dredge (Quality = 0)

When MaxSea receives a 0 volt signal without having ever received a 5 volt one, the state automatically turns to 0

(inactive dredge).

Active dredge (Quality = 1 and the track is red)

When the software receives a 5 volt signal, the state turns to 1 (active dredge) and the track is on.

Note: it is impossible to Manually stop the track or Activate the track parameters choice dialog or Use the Man overboard function.

Hanging dredge (Quality = 2 and the track is blue )

When MaxSea does not receive anymore signal, the state turns to 2 (waiting for a new state, active or inactive) the track color turns to blue and the track save is still going on.

Then, if the signal is not received within TimeOut, MaxSea automatically turns the state to 0, the track is off.

The software stops the track save and suggests to "save as" the track in an existing file named "*.ptf".

Note that you can modify the TimeOut (for that, see paragraph TimeOut Preferences below).

Note : It is possible to create a new destination folder to save the dredge track in a new. PTF file. But it will be impossible to modify this file.

Then, the track is saved in an ASCII format file named "AAAAMMJJ.HHh.DRA.txt", the software suggests you to create a new destination folder for it.

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Setting Up Time Out

How to input Time Out

1.Select [Data Input-Output Settings] from the [Utilities] menu and click on the "Dredge" Tab

2.Click on corresponding line in the dialog

3.Click on the Advanced Settings button to display the Time Out edit box

4.Enter a value to define the delay before stopping the Dredge track ( equal to 60sec by default)

For Example:

In case the time out is defined

If you stop the dredge, then after 60sec the dredge track will be stopped if you did not activated the dredge again.

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3.Historic Mode is the profile of your boat 's Track. The profile window is always associated to a track , either a previously saved old track (Historic Mode), or the current track (MaxSea Mode.)

Note that the Depth Profile display mode by default is selected on NavNet Mode.

The Depth Profile window can also be opened from [Navigation Mode] under the [Windows] menu.

Switching between NavNet Mode and MaxSea Mode:

1.Click the "Depth Profile Information" arrow to open the drop-down menu list.

2.Either click NavNet Mode or MaxSea Mode depending on your choice.

In this section you will learn on :

1 - Let's take a brief tour around the different Depth Profile's toolbars

•Depth Profile Window Toolbar with NavNet Mode selected

•Depth Profile Window Toolbar with MaxSea Mode selected

•Depth Profile Window Toolbar with Historic Mode selected

2 - NavNet MODE

•Changing the NavNet Depth Profile Point View

•Selecting a NavNet Depth Profile Display

•Marker Zoom Display Mode

•Bottom Zoom Display Mode

•Bottom Lock Display Mode

•Bottom Discrimination Display Mode

3 - MaxSea Depth Profile Window Quick View

•Changing the MaxSea Depth Profile Point View

•Selecting a MaxSea Depth Profile Display

•GPS in the Depth Profile Window

•Depth Profile Outline

•Forward Looking Depth Profile

•Tides corrections

•Locate your cursor

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Sounder Depth Profile

•Plot "Events" to mark Fish Schools

4 - Historic Mode

•Changing the NavNet Depth Profile Point View

•Selecting a NavNet Depth Profile Display

5 - NavNet Layers

•Echogram

•A-scope

•Temperature Graph

•Transmission frequency

See Also Related Topics:

1.Option : Navnet... (to choose and configure the NavNet System that you are using.)

2.Configuring Sounder Options... ( To adjust by default : Gain level, chosen mode between Manual and Auto, Noise Limiter, Clutter , Time Variable Gain and Draught Offset.)

NavNet Mode

NavNet Depth Profile Window Quick View

MaxSea-NavNet Depth Profile's display gives an accurate numeric depth data readings.

Echogram displayed in Dual frequency Mode (LF shown by number 2 and HF shown by number 1)

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Echogram displayed in Single frequency Mode (Echo frequency was switched between HF shown by number 1 and LF shown by number 2)

The NavNet Depth Profile's Window can help you on :

•Locating schools of fish and their depths.

•Determining bottom discrimination,.

•Locating shipwrecks, reefs, and other objects between the keel and the bottom.

•Determining the water depth and locating risks for navigation.

•Determining the water temperature changes.

How to choose a Display Mode:

1.Click the Depth Profile drop down menu

2.Click again on a chosen display mode to select and unselect it. For more information see related topics: Selecting a NavNet Depth Profile Display and Changing the NavNet Depth Profile Point View

Available Echogram Display Modes when NavNet mode is chosen:

1.Marker Zoom Display Mode

2.Bottom Zoom Display Mode

3.Bottom Lock Display Mode

4.Bottom Discrimination Display Mode

Single or Double Window Frame for NavNet Depth Profile display, depending on the chosen display mode

Single Freq Dual Freq Marker Zoom Bottom Zoom Bottom Lock Bottom Discrimination

You will also learn on in this chapter:

Sounder settings optimization directly from the PC . (See related topic : Option : Sounder...)

-Gain,

-Auto mode,

-Noise limiter...)

How to easily and quickly change NavNet Depth Profile Sounder Display

"Transmission frequency" settings control

-High frequency

-Low frequency

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Sounder Depth Profile

NavNet "Depth Profile" window including :

-Echogram showing both frequency modes HF and LF (Dual Freq display mode)

-Echogram showing single freqency mode (Single Freq mode)

-A-scope display

-Temperature Graph

NavNet Depth Profile Toolbar

NavNet Mode toolbar contains buttons which toggle display data on/off according to NavNet mode and the Sounder tools which allow you to adjust the echo sounder display.

file

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6 - To change and the Sounder Echo Location in the graphical view (see related topic : Changing NavNet Depth Profile Sounder Display.)

7 - To switch between available NavNet Depth Profile Displays

8 - To show / Hide the A-scope in the depth profile view

9 - To show / hide the temperature graph in the depth profile view.

Sounder Toolbar

The Sounder Palette allows to quickly set up your view in the Depth Profile window for example if you want to switch frequence between LF and HF or mode between automatic and manual.

Setting Tools have been grouped together into the Sounder toolbar designed for quickly go to specific functions as it is explained on following :

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Sounder Depth Profile

m (maximal value for R+)

Only available when Manual Mode is chosen.

Switch between S-(Shift down the echo view) and S+(shift up the echo view).

Shift level

When NavNet Mode is toggled on, the S- shifts down the echogram view and S+ shifts up the echogram view in the Depth Window .

Changing the NavNet Depth Profile Sounder Display

In NavNet Mode you may only change Echogram Point of View in three display modes:

Either Manual or Fishing or Cruising.

Fishing and Cruising display modes are automatic.

The Manual Mode allows you to adjust the Range and the Shift echoes location.

Manual mode is selected on the Sounder toolbar.

S- and S+ buttons are available, click each one depending on your choice to move up or down the Echogram display view. A blue horizontal line delimits the echogram display down from it.

When S- is clicked the line moves upward and when S+ is clicked the line moves downward.

The Range buttons (R- and R+) are also available.

Selecting a NavNet Depth Profile Display

How to change the display in the NavNet Mode Depth Profile window::

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Click on to show or hide the Temperature Graph overlaying on the echogram if there is the temperature data information in the NMEA sentence (see also related topic: Temperature Graph.)

Single or Double Window Frame for NavNet Depth Profile display, depending on the chosen display mode

Note: Dual Freq, Marker Zoom, Bottom Zoom, Bottom Lock and Bottom Discrimination modes are displayed in a double frame window.

Marker Zoom Display Mode

1.The Marker Zoom display expands a selected area of the echogram displayed in the left window frame.

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