NorthStar Navigation Explorer 660 - Manual (Page 39)

Northstar Explorer 660 Installation and Operation Manual 39
9 Sonar fishfinding: Displays
To show the Sonar display, press DISPLAY, select
Chart or Sonar, then select a sonar display.
There are five kinds of sonar display. To use a
display:
1 Press MENU and select Sonar splits.
Select the type of display to use.
2 If the display is split, adjust the split ratio if
required:
a Press MENU and select Sonar
window split.
b Press or to adjust the ratio.
c Press ENTER.
Sonar history display at a single or mixed frequency
- not split (see section 9-1)
Sonar split display: history plus a zoomed section
(see section 9-2)
Sonar split display: history plus a flat bottom trace in a
zoomed section (section 9-3)
Sonar split display: histories at 50 and 200 kHz
frequencies (section 9-4)
Sonar split display: history plus echo strength (section
9-5)
9-1 Sonar history display - no split
Optional data header
(see section 2-6-3)
Color bar
Depth (medium size digits)
Range
Bottom
Surface
Fish symbols with depth
Optional compass
(see section 2-6-3)
Note: The display scrolls from
right (most recent echoes) to left
(oldest echoes).