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1. OPERATIONAL OVERVIEW
1-18
1.10 Inscribing Lines
You may inscribe vertical lines on the display to mark fish schools, shoals, etc.
When an echo of interest appears, click Marker line on the menu bar to inscribe a vertical
line on the display. If TIMER is turned on in the Status window, elapsed time is counted from
the moment the mark is inscribed.
Note that color of the marker line can be changed. For details, see paragraph 3.5.
1.11 Fish Size Histogram
The fish size histogram display shows single fish size within the area measured. You may
set up this display as follows:
1. Display the split-beam display. See paragraph 1.5.
2. Click Disp.
3. Click Display Window.
Display window dialog box
4. Click Fish size histogram. The toggle button is then colored in purple (ON state). Each
click turns the display on or off alternately.
5. Click the OK button. The fish size histogram appears and measuring begins.