Furuno CH-500, Руководство оператора

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4. ECHO SOUNDER MODE
4-3
4.3 How to Adjust the Range
The RANGE knob adjusts the range for echo detection and display on all display
modes. There are 15 preset ranges, for Horizontal, Vertical and Echo Sounder modes,
which can be changed to suit your needs.
For preset range default settings, see section 1.10.
4.4 How to Adjust the Tilt
You can point the transducer in any direction between the bottom of the ship (90°) and
to the front of the ship (0°).
To change the title angle, rotate the TILT control. The tilt is adjusted in 1° increments
and the selected angle appears at the top-center of the echo display area for a few
seconds.
4.5 How to Select the Picture Advance Speed
Picture advance speed determines how quickly the scan is displayed on the screen,
from right to left. When selecting a picture advance speed, keep in mind that a fast
speed will expand the echoes horizontally, while a slow speed will contract the
echoes.
1. With the Echo Sounder display mode active, press the FAST SCAN key .
The [Pic. Advance] popup window appears.
2. Press the FAST SCAN key to cycle through the settings, or press the Cursor Pad
to select the appropriate speed setting.
The
FAST SCAN key cycles though the settings in the following order:
1/1
o
2/1
o
1/8
o
1/4
o
1/2
o
1/1...
Note: When using the CursorPad to select the speed, the cursor stops at the high-
est setting (2/1) and the lowest setting (1/8).
The default setting for picture advance is 1/1.
Picture advance speed and changes to echo display
• 1/1: Picture advances normally, no change to echoes.
• 2/1: Picture advance at twice the normal speed, echoes are expanded.
• 1/8: Picture advances at one-eighth normal speed, echoes are heavily contracted.
• 1/4:Picture advances at one-quarter normal speed, echoes are moderately con-
tracted.
• 1/2: Picture advances at one-half normal speed, echoes are slightly contracted.