Garmin GPSMAP 7x2/9x2 and 12x2 Touch Owners Manual - Page 36

When sharing sonar data, the values of some sonar settings, such as Range and Gain, are synchronized across the devices on the network. The values of other sonar settings, such as the Appearance settings, are not synchronized and should be configured on each individual device. In addition, the scroll rates of the various traditional and Garmin ClearVü sonar views are synchronized to make the split views more cohesive. NOTE: Using multiple transducers simultaneously can create cross talk, which can be removed by adjusting the Interference sonar setting. Adjusting the Level of Detail You can control the level of detail and noise shown on the sonar screen either by adjusting the gain for traditional transducers or by adjusting the brightness for Garmin ClearVü transducers. If you want to see the highest intensity signal returns on the screen, you can lower the gain or brightness to remove lower intensity returns and noise. If you want to see all return information, you can increase the gain or brightness to see more information on the screen. This also increases noise, and can make it more difficult to recognize actual returns. 1 From a sonar view, select Menu. 2 Select Gain or Brightness. 3 Select an option: • To increase or decrease the gain or brightness manually, select Up or Down. • To allow the chartplotter to adjust the gain or brightness automatically, select an automatic option. Adjusting the Color Intensity You can adjust the intensity of colors and highlight areas of interest on the sonar screen by adjusting the color gain for traditional transducers or the contrast for Garmin ClearVü and SideVü/ClearVü transducers. This setting works best after you have adjusted the level of detail shown on the screen using the gain or brightness settings. If you want to highlight smaller fish targets or create a higher intensity display of a target, you can increase the color gain or contrast setting. This causes a loss in the differentiation of the high intensity returns at the bottom. If you want to reduce the intensity of the return, you can reduce the color gain or contrast. 1 From a sonar view, select Menu. 2 Select an option: • While in the Garmin ClearVü or SideVü sonar view, select Contrast. • While in a Panoptix LiveVü sonar view, select Color Gain. • While in another sonar view, select Sonar Setup > Appearance > Color Gain. 3 Select an option: • To increase or decrease the color intensity manually, select Up or Down. • To use the default setting, select Default. Sonar Recordings Recording the Sonar Display 1 Insert a memory card into the card slot. 2 From a sonar view, select Menu > Sonar Setup > Sonar Recording > Record Sonar. 15 minutes of sonar recording uses approximately 200 MB of space of the inserted memory card. An individual recording automatically ends after it reaches 4 GB in size. You can record sonar data until the card reaches capacity. Stopping the Sonar Recording Before you can stop recording sonar, you must begin recording it (Recording the Sonar Display, page 28). From a sonar view, select Menu > Sonar Setup > Sonar Recording > Stop Recording. Deleting a Sonar Recording 1 Insert a memory card into the card slot. 2 From a sonar view, select Menu > Sonar Setup > Sonar Recordings > View Recordings. 3 Select a recording. 4 Select Review > Delete. Playing Sonar Recordings Before you can play back the sonar recordings, you must download and install the HomePort™ application and record sonar data onto a memory card. 1 Remove the memory card from the device. 2 Insert the memory card into a card reader attached to a computer. 3 Open the HomePort application. 4 Select a sonar recording from your device list. 5 Right-click the sonar recording in the lower pane. 6 Select Playback. Traditional, Garmin ClearVü, and SideVü Sonar Setup NOTE: Not all options and settings apply to all models, sounder modules, and transducers. NOTE: These settings do not apply to Panoptix transducers. 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 29). 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 29). Appearance: Configures the appearance of the sonar screen (Sonar Appearance Settings, page 29). Alarms: Sets sonar alarms (Sonar Alarms, page 30). Advanced: Configures various sonar display and data source settings (Advanced Sonar Settings, page 30). Not applicable to Garmin ClearVü or SideVü sonar views. Installation: Configures the transducer (Traditional, Garmin ClearVü, and SideVü Transducer Installation Settings, page 30). Setting the Zoom Level on the Sonar Screen 1 From a sonar view, select Menu > Zoom > > Mode. 2 Select an option: • To set the depth and zoom automatically, select Auto. If necessary, select Set Zoom to modify the zoom setting. Select View Up or View Down to set the depth range of the magnified area, and select Zoom In or Zoom Out to increase or decrease the magnification of the magnified area. • To set the depth range of the magnified area manually, select Manual. If necessary, select Set Zoom to modify the zoom setting. Select View Up or View Down to set the depth range of 28 Sonar Fishfinder