User manual GARMIN ECHO 151DV

[. . . ] Information in this document is subject to change without notice. Garmin reserves the right to change or improve its products and to make changes in the content without obligation to notify any person or organization of such changes or improvements. Visit the Garmin Web site (www. garmin. com) for current updates and supplemental information concerning the use and operation of this and other Garmin products. Garmin® and the Garmin logo are trademarks of Garmin Ltd. [. . . ] You can adjust the range of the depth scale that appears on the right side of the Full Screen page, the Split Zoom page, and the Split Frequency page, and the inside of the flasher. This setting determines how deep the sonar will search for targets. Select an option: · To allow the device to adjust the range automatically based on the depth, select Auto. · To increase or decrease the range of the depth scale manually, select Manual, select or , then select ENTER. When you set the range on one page, that setting is applied to the other pages. Zoom adjustments You can adjust the zoom of the Full Screen page, the Split Zoom page, and the Split Frequency page manually, or you can allow the device to adjust the zoom automatically. Adjust the zoom manually by selecting the span (amount of sonar data that will be displayed in the zoomed window) and selecting a fixed starting depth. For example, if you select a span of 15 meters and a starting depth of 5 meters, the device will display an area from 5 meters deep to 20 meters deep. When you adjust the zoom automatically, the span is the area that will be displayed on the screen from the contour of the bottom of the water. For example, if you select a span of 10 meters, the device will display an area from the bottom of the water to 10 meters above the bottom. adjusting the Zoom Manually Before you can adjust the zoom manually, you must open the Full Screen page (page 4), the Split Zoom page (page 5), or the Split Frequency page (page 5). When you set the span of the zoom on one page, the other pages are not affected. Select MENU > Zoom > Manual Zoom > Span. When you show a depth line on one page, the line is also displayed on the other pages. Select MENU > Depth Line > On. 11 Water temperature at the location indicated by the vertical line. Scroll bar gives an indication of how far back you have scrolled. Depth at the location indicated by the vertical line. Before you can view your sonar history, you must open the Full Screen page (page 4), the Split Zoom page (page 5), or the Split Frequency page (page 5) in the echo 200, echo 500c, or the echo 550c. echo 200, echo 300c, echo 500c, and echo 550c Owner's Manual Opening the Sonar History Using the echo 2. To adjust the depth line, select or . Selecting a Frequency Before you can select a frequency, you must open the Full Screen page (page 4), the Split Zoom page (page 5), or the Flasher page (page 8). When using a dual-beam transducer, you can select a frequency of 200 kHz or 77 kHz. The 200 kHz frequency shows better detail, has a narrower beam, and is typically used in shallower waters. The 77 kHz frequency has a wider beam, so it can be used to cover a larger area. It can be used as a search tool to locate structure, such as brush piles, and to see more fish. When you select a frequency on one page, that setting is applied to the other pages. Select MENU > Setup > Sonar Setup > Frequency. [. . . ] Clean the outer casing (not the screen) of the device using a cloth dampened with a mild detergent solution. Wipe the device dry. Specification Temperature Range Cleaning the Screen Notice Cleaners containing ammonia will harm the anti-reflective coating. The device is coated with a special anti-reflective coating which is very sensitive to skin oils, waxes, and abrasive cleaners. Apply an eyeglass lens cleaner specified as safe for anti-reflective coatings to the cloth. [. . . ]