valutazioni - 3, GPA: 4.7
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Foto e specifiche Garmin GPSMAP 278 |
Facilità d'uso
Read the GSD 21 or GSD 20 Sounder Module Installation Instructions to properly install the sounder module. When you turn on your GPSMAP 278, the Sounder Module automatically turns on. NOTE: You MUST have a GSD 21 or GSD 20 installed and connected to your GPSMAP 278 to use the sonar features. The Sonar Page is added to the end of the page sequence when you are in Marine Mode. To view the Sonar Page, press PAGE or QUIT repeatedly until it appears. Showing Sonar on the Map Page You can change the layout of the Map Page to show a split screen to show the sonar on the Map Page. You must be in Marine Mode to use sonar. To show the Sonar Page on the Map Page: 1. On the Map Page, press MENU. 2. Highlight Set Up Page Layout, and press ENTER. 3. Highlight Map with Sonar, and press ENTER. 0 Map Page with Split Screen To resize the Map Page sonar split screen: 1. After showing the Sonar and Map pages together in the split screen as described in the previous steps, press MENU. 2. Highlight Size Split, and press ENTER. 3. Use the ROCKER to move the vertical double-arrow right or left. 4. Press ENTER. 5. To stop resizing the screen, press QUIT. You can also press MENU, highlight Stop Resizing, and press ENTER to stop resizing the screen and retain the previous split setting. GPSMAP 278 Owner’s Manual settIng uP And usIng sonAr > usIng the sonAr PAge settIng uP And usIng sonAr > usIng the sonAr PAge When combined with a GSD 21 or GSD 20 Sounder Module, your GPSMAP 278 becomes a powerful fishfinder/flasher with the Sonar Page. If a GSD 21 or GSD 20 is attached, but the unit does not detect a transducer, a “Sonar Turned Off” message appears across the Sonar Page. The Sonar Page appears only if a GSD 21 or GSD 20 has ever been attached or when the unit is in Simulator Mode. The middle of the page contains a right-to-left moving sonar image of the water beneath your boat. Items appear as they pass under your transducer. Those items on the right side of the screen are closer to you than those on the left. Along the right side of the screen is an adjustable scale that reflects the depth of the area being shown. The top-left corner shows the adjustment option, the depth, and the water temperature. Sonar Page GPSMAP 278 Owner’s Manual The sonar returns show as red (strongest), then orange (strong), yellow (medium), green (weaker), and blue (weakest). The Fish Symbols option allows you to view the actual sonar data, a fish symbol or a combination of both. When the unit is set to Dual, the appearance of the fish symbols changes. Fish symbols from the center of the beam (200 kHz) are solid (or narrow arches), but the returns from the edges of the beam (50 kHz) are hollow (or wide arches). The sonar display can also be set to show a split screen view of a zoomed portion of the sonar, bottom lock (display scaled from the bottom up), or a combination of these options. For example, you can choose to show dual frequency at a 2X zoom (Dual 2X) on one half and normal range dual frequency (Dual) on the other half. The current display mode appears at the bottom of each sonar display. Read the “Understanding Sonar” section beginning on page 99 for more on information about sonar. settIng uP And usIng sonAr > usIng the sonAr PAge settIng uP And usIng sonAr > usIng the sonAr PAge Use the Adjustment menu to access the settings and features most commonly used on the Sonar Page. Ten main adjustment options are available: Range, Zoom, View, Gain, Target Level, Whiteline, Frequency, Depth Line, Noise Reject, and Scroll. The currently selected option appears in the upper-left corner. To select an adjustment option: 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 you want appears, press ENTER. • Press MENU, highlight Adjustments, and press ENTER. Use the ROCKER to highlight the adjustment and press ENTER. After you select an adjustment option, press the ROCKER up or down to change the setting. You can also press MENU and highlight a shortcut setting to quickly change to commonly used settings and values. Press ENTER to accept the new setting (or press QUIT to cancel) and return to the Sonar Page. 2 Sonar Adjustment Options Range—sets the display depth range used for viewing. The unit can be set to automatically track the bottom or set to a user-specified depth range. Zoom—allows you to select a display zoom scale or to split the display. When a scale other than No Zoom is selected, the Adjustment menu shows a new selection labeled View or Span. The Zoom function is divided into six display levels: • 2X Split—shows two reduced-size sonar pictures at the same time. The right half shows the complete sonar picture at its original scale. The left half shows a portion of the original picture at 1/2 depth scale. • 2X Zoom—shows the 2X zoomed picture on the full screen. • 4X Split—shows two reduced pictures, the right at the original depth sca...