Garmin ECHOMAP UHD 93sv Owners Manual - Page 31
Panoptix Sonar Setup
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various water depths. This setting also reduces the noise near the surface of the water. Transducer Installation Settings NOTE: Not all options and settings apply to all models and transducers. From a sonar view, select MENU > Sonar Setup > Installation. Restore Sonar Defaults: Restores the factory default settings for the sonar view. Transducer Type: Allows you to select the type of transducer that is connected to the device. Flip Left/Right: Changes the orientation of the SideVü sonar view when the transducer is installed backward. Flipped: Sets the orientation of the Panoptix sonar view when the transducer is installed with the cables pointing toward the port side of the boat. Beam Width: Sets the width of the Panoptix transducer beam. Narrow beam widths allow you to see deeper and farther. Wider beam widths allow you to see more coverage area. Use AHRS: Allows the internal attitude heading and reference system (AHRS) sensors to detect the installation angle of the Panoptix transducer. When this setting is turned off, it is assumed the transducer is installed at a 45-degree angle. Sonar Frequencies NOTE: The frequencies available depend on the chartplotter, sounder modules, and transducer being used. Adjusting the frequency helps adapt the sonar for your particular goals and the present depth of the water. Higher frequencies use narrow beam widths, and are better for high-speed operation and rough sea conditions. Bottom definition and thermocline definition can be better when using a higher frequency. Lower frequencies use wider beam widths, which can let the fisherman see more targets, but could also generate more surface noise and reduce bottom signal continuity during rough sea conditions. Wider beam widths generate larger arches for fish target returns, making them ideal for locating fish. Wider beam widths also perform better in deep water, because the lower frequency has better deep water penetration. CHIRP frequencies allow you to sweep each pulse through a range of frequencies, resulting in better target separation in deep water. CHIRP can be used to distinctly identify targets, like individual fish in a school, and for deep water applications. CHIRP generally performs better than single frequency applications. Because some fish targets may show up better using a fixed frequency, you should consider your goals and water conditions when using CHIRP frequencies. Some sonar black boxes and transducers also provide the ability to customize preset frequencies for each transducer element, which enables you to change the frequency quickly using the presets as the water and your goals change. Viewing two frequencies concurrently using the split-frequency view allows you to see deeper with the lower frequency return and, at the same time, see more detail from the higher frequency return. Selecting the Transducer Frequency NOTE: You cannot adjust the frequency for all sonar views and transducers. You can select which frequencies appear on the sonar screen. NOTICE Always be aware of local regulations on sonar frequencies. For example, to protect orca whale pods, you might be prohibited from using frequencies between 50 to 80 khz with in ½ mile of an orca whale pod. It is your responsibility to use the device in compliance with all applicable laws and ordinances. 1 From a sonar view, select MENU > Frequency. 2 Select a frequency suited to your needs and water depth. For more information on frequencies, see Sonar Frequencies, page 25. Creating a Frequency Preset NOTE: Not available with all transducers. You can create a preset to save a specific sonar frequency, which allows you to change frequencies quickly. 1 From a sonar view, select MENU > Frequency. 2 Select Add. 3 Enter a frequency. Turning On the A-Scope NOTE: This feature is available in the Traditional sonar views. The a-scope is a vertical flasher along the right side of the view, showing you what is underneath the transducer right now. You can use the a-scope to identify target returns that may be missed when the sonar data is quickly scrolling across the screen, such as when your boat is moving at high speeds. It can also be helpful for detecting fish that are close to the bottom. The a-scope above shows fish returns and a soft bottom return . From a sonar view, select MENU > Sonar Setup > Appearance > A-Scope. Panoptix Sonar Setup Adjusting the RealVü Viewing Angle and Zoom Level You can change the viewing angle of the RealVü sonar views. You can also zoom in and out of the view. From a RealVü sonar view, select an option: • To adjust the viewing angle, use the arrow keys. • To zoom in and out, turn the knob. 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. LiveVü Forward and FrontVü Sonar Menu From the LiveVü Forward or FrontVü sonar view, select MENU. Gain: Controls the level of detail and noise shown on the sonar screen. If you want to see the highest intensity signal returns on the screen, you can lower the gain to remove lower intensity returns and noise. If you want to see all return information, you can increase the gain to see more information on the Sonar Fishfinder 25