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Furuno CH-300 User Manual

Page 6

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iv

2.14

Horizontal Menu Overview .........................................................................................2-22

2.14.1

Horizontal menu description ............................................................................2-22

2.15

Interpreting the Horizontal Display .............................................................................2-24

2.15.1

How the horizontal mode picture is painted.....................................................2-24

2.15.2

Sample displays ..............................................................................................2-25

2.15.3

Combination display examples........................................................................2-29

3.

VERTICAL SCAN MODE .............................................................................. 3-1

3.1

Operational Overview...................................................................................................3-1

3.2

Typical Vertical Scan Mode Display .............................................................................3-2

3.3

Choosing a Range .......................................................................................................3-3

3.4

Choosing Train Center .................................................................................................3-4

3.5

Choosing Display Sector..............................................................................................3-5

3.6

Choosing Sector Center...............................................................................................3-6

3.7

Choosing Training Speed .............................................................................................3-7

3.8

Finding Echo Position with the Cursor .........................................................................3-7

3.9

Changing Training Direction.........................................................................................3-7

3.10

Event Marker................................................................................................................3-8

3.10.1

Deleting all event markers from the vertical scan display..................................3-9

3.11

Depth and Horizontal Range Markers..........................................................................3-9

3.12

Adjusting the Picture ..................................................................................................3-10

3.12.1

Displaying weak echoes clearly.......................................................................3-10

3.12.2

Suppressing noise and interference ................................................................ 3-11

3.13

Vertical Menu Overview .............................................................................................3-12

3.13.1

Vertical menu description ................................................................................3-12

3.14

Interpreting the Vertical Scan Display ........................................................................3-13

3.14.1

How the vertical scan mode picture is painted ................................................3-13

3.14.2

Sample displays ..............................................................................................3-14

3.14.3

Horizontal/vertical scan port-starboard, Horizontal/vertical scan

upward-downward display...............................................................................3-16

4.

ECHO SOUNDER MODE.............................................................................. 4-1

4.1

Operational Overview...................................................................................................4-1

4.2

Typical Echo Sounder Display .....................................................................................4-2

4.3

Choosing a Range .......................................................................................................4-3

4.4

Train Direction ..............................................................................................................4-4

4.5

Choosing a Tilt Angle ...................................................................................................4-4

4.6

Choosing a Picture Advance Speed.............................................................................4-4

4.7

Measuring Range by Cursor ........................................................................................4-5

4.8

Event Marker................................................................................................................4-5

4.8.1

Inscribing the event marker ...............................................................................4-6

4.8.2

Deleting all event markers from echo sounder display......................................4-6

4.9

Range Marker ..............................................................................................................4-7

4.10

Adjusting the Picture ....................................................................................................4-7

4.10.1

Displaying weak echoes clearly.........................................................................4-7

4.10.2

Finding echo strength (A-scope display) ...........................................................4-9

4.10.3

Suppressing interference and noise ..................................................................4-9

4.11

Echo Sounder Menu Overview ..................................................................................4-10

4.11.1

Echo sounder menu description ......................................................................4-10