Humminbird 957C, 917C manual 555

Classic layout: The top portion of the display presents a historical log of sonar returns from the 200 kHz down-looking sonar beam. New information in the down beam panel scrolls from right to left. The bottom portion of the display presents a historical log of sonar returns from the 455 kHz right- and left-looking sonar beams. New information appears at the top, and scrolls down the display.

	Side Beam View, Classic Layout
1	4

2	3	6
		5
1	Depth	200 kHz Sonar History Window	4
2	Temperature	Water Surface Line for 455 kHz	5
3	Left Side 455 kHz Sonar History Window	Sonar History Windows
		Right Side 455 kHz Sonar History Window	6

Slanted layout: This layout presents the two 455 kHz side sonar beams and the 200 kHz down-looking sonar beam as three panels of historical data. This layout is presented as three slanted panels. New information appears on the right, and scrolls to the left.

Side Beam View, Slanted Layout

1

555

2
	3	4	6
1	Depth	200 kHz Sonar History Window	4
2	Temperature	Water Surface Line for 455 kHz	5
3	Left Side 455 kHz Sonar History Window	Sonar History Windows
		Right Side 455 kHz Sonar History Window	6

In all of these layouts, the sonar information from the side-looking beams reveals bottom contour, structure and fish similar to the down-looking beam, but the area covered is to the left and right of the area shown in the down- looking portion, so you actually see more of the bottom. The distance covered by the right and left beams is based on the depth setting for the down-looking beam, up to a maximum of 160 feet.

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