Garmin gpsmap 495 Manuale Utente

Setting up and Using Sonar > 

Using the Sonar Page

The Adjustment Menu allows direct access to the settings and 

features most commonly used on the Sonar Page. There are 10 main 

adjustment options available: Range, Zoom, View, Gain, Target 

Level, Whiteline, Frequency, Depth Line, Noise Reject and Scroll. 

Use the ROCKER and ENTER keys to make all adjustments. The 

currently selected option appears in the upper left corner. 

Use one of the following methods to select an adjustment option:

Press the 

ROCKER right or left to scroll through the 

adjustment options. When the adjustment option is shown, 

press 

ENTER. 

Press 

MENU, highlight Adjustments, and press ENTER. Use 

the 

ROCKER to highlight the adjustment, and press ENTER. 

When you have selected an adjustment option, press the ROCKER 

up or down to change the setting.
You can also press 

MENU, and highlight the shortcut setting to 

quickly change to commonly used settings/values.
Press ENTER to accept the new setting (or press QUIT to cancel) 

and return to the Sonar Page. 

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Scroll—adjusts the rate that the sonar screen scrolls from right to 

left. If you are sitting still or the sonar screen is moving too fast, 

slow the scroll rate or pause the scrolling.
Range—sets the depth range used for viewing. The unit can be set 

to automatically track the bottom or set to a user-specified depth 

range.