Garmin GPSMAP 7608xsv Owner s Manual - Page 27

• To zoom in, spread two fingers apart. • To zoom out, pinch two fingers together. Adjusting the Appearance of the RealVü Sonar Views 1 From a RealVü sonar view, select Menu. 2 Select an option: • To adjust the depth at which the color palette starts over, select Palette Depth, and select an option. • To select a different color palette for the sonar return points, select Sonar Setup > Point Colors, and select an option. • To select a different color palette for the bottom, select Sonar Setup > Bottom Colors, and select an option. • To select a different style for the bottom, select Sonar Setup > Bottom Style, and select an option. • To hide or show the color legend on the side of the screen, select Sonar Setup > Color Key. Adjusting the RealVü Sweep Speed You can update how quickly the transducer sweeps back and forth. A faster sweep rate creates a less detailed image, but the screen refreshes faster. A slower sweep rate creates a more detailed image, but the screen refreshes more slowly. NOTE: This feature is not available for the RealVü 3D Historical sonar view. 1 From a RealVü sonar view, select Menu > Sweep Speed. 2 Select an option. Turning On the A-Scope NOTE: This feature is not available in all sonar views. The a-scope is a vertical flasher along the right side of the fullscreen sonar view. This feature expands the most recently received sonar data so that it is easier to see. It can also be helpful for detecting fish that are close to the bottom. From a sonar view, select Menu > Sonar Setup > Appearance > A-Scope > On. Selecting the Transducer Type Before you can select the transducer type, you must know what kind of transducer you have. If you are connecting a transducer that was not included with the chartplotter, you may need to set the transducer type to make the sonar function properly. If the device automatically detected your transducer, this option does not appear. 1 From a sonar view, select Menu > Sonar Setup > Installation > Transducer Type. 2 Select an option: • If you have a 200/77 kHz, dual-beam transducer, select Dual Beam (200/77 kHz). • If you have a 200/50 kHz, dual-frequency transducer, select Dual Frequency (200/50 kHz). • If you have another type of transducer, select it from the list. Sonar Setup NOTE: Not all options and settings apply to all models, sounder modules, and transducers. Sonar Settings NOTE: These settings do not apply to Panoptix transducers. See RealVü Sonar Settings, page 21 and LiveVü Sonar Settings, page 21. From a sonar view, select Menu > Sonar Setup. Scroll Speed: Sets the rate at which the sonar scrolls from right to left (Setting the Scroll Speed, page 20). In shallow water, you can select a slower scroll speed to extend the length of time the information is displayed on screen. In deeper water, you can select a faster scroll speed. Automatic scroll speed adjusts the scrolling speed to the speed the boat is traveling. Noise Reject: Reduces the interference and the amount of clutter shown on the sonar screen (Sonar Noise Rejection Settings, page 21). Appearance: Configures the appearance of the sonar screen (Sonar Appearance Settings, page 22). Alarms: Sets sonar alarms (Sonar Alarm Settings, page 22). Advanced: Configures various sonar display and data source settings (Advanced Sonar Settings, page 22). Installation: Configures the transducer (Transducer Installation Settings, page 22). RealVü Sonar Settings From a RealVü sonar view, select Menu > Sonar Setup. Point Colors: Sets a different color palette for the sonar return points. Bottom Style: Sets the style for the bottom. When you are in deep water, you can set this setting to the Points and manually set the range shallower. Bottom Colors: Sets the color scheme for the bottom. Color Key: Shows a legend of the depths the colors represent. Overlay Data: Sets the data shown on the sonar screen. Installation: Configures the transducer (Transducer Installation Settings, page 22). LiveVü Sonar Settings From a LiveVü sonar view, select Menu > Sonar Setup. Color Scheme: Sets the color palette. Bottom Fill: Colors the bottom brown to distinguish it from the water returns. Trails: Sets the how long the trails appear on the screen. The trails show the movement of the target. Grid Overlay: Shows a grid of range lines. Noise Reject: Reduces the interference and the amount of clutter shown on the sonar screen. Scroll History: Shows the sonar history in a traditional sonar view. Overlay Data: Sets the data shown on the sonar screen (Customizing the Data Overlays, page 3). Installation: Configures the transducer (Calibrating the Compass, page 18). Sonar Noise Rejection Settings From a sonar view, select Menu > Sonar Setup > Noise Reject. Interference: Adjusts the sensitivity to reduce the effects of interference from nearby sources of noise. The lowest interference setting that achieves the desired improvement should be used to remove interference from the screen. Correcting installation issues that cause noise is the best way to eliminate interference. Color Limit: Hides part of the color palette to help eliminate fields of weak clutter. By setting the color limit to the color of the undesired returns, you can eliminate the display of undesired returns on the screen. Smoothing: Removes noise that is not part of a normal sonar return, and adjusts the appearance of returns, such as the bottom. When smoothing is set to high, more of the low-level noise remains than when using the interference control, but the Sonar 21