Furuno CH-300 User Manual
Page 6
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