Humminbird 947C manual 2D Sonar View

531374-1_A - 947 Man.qxd 2/15/2005 7:53 PM Page 36

2D SONAR VIEW

2D Sonar View is a 2-dimensional view that presents a historical log of 2D sonar returns. When in 2D Sonar View, your unit operates like a typical depthsounder. The most recent sonar returns are charted on the right side of the window; as new information is received, the older information is moved across the display to the left. There are, however, several exceptions. The 6-beam, 53 degree transducer allows you to search for fish with a much wider area of coverage. Only the two center beams provide sonar returns for the bottom contour shown on the display. The fish symbols shown in the 2D Sonar View are the same as those used in the 3D Sonar View, and provide information on the location of the fish relative to the boat (see Sonar Menu Tab, Fish ID+). Use the 2D Sonar View for identifying structure and bottom hardness.

NOTE: If the Depth number is flashing, it means that the unit is having trouble locating the bottom. This usually happens if the water is too deep, the transducer is out of the water, the boat is moving too fast, or for any other reason that the unit can’t accurately receive continuous data.

Freeze Frame - Pressing any arrow on the 4-WAY Cursor Control key will freeze the screen in the 2D Sonar View and a cursor and cursor dialog box will be displayed on the screen. The cursor can be positioned on the display using the 4-WAY Cursor Control key to determine the depth of any sonar return. The RTS® Window continues to update in Freeze Frame. In addition, see the effects of menu setting changes with Instant Image Update.

Pressing EXIT will exit Freeze Frame and the display will start to scroll. Freeze Frame is only available in the Sonar View.

2D Sonar View

1 8

2

6

3		5
4
		7
1	Depth	RTS® Window	5
2	Triplog	Sonar Color Bar	6
3	Temperature	Lower Depth Range	7
4	Speed	Upper Depth Range	8

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