Garmin GPSMAP 1222 Touch Owners Manual - Page 40

Allowing the device to adjust the range automatically adjusts the forward scale in relation to the depth. Manually adjusting the range enables you to view a specified range. The bottom can appear on the screen as long as it appears within the range you have set. Manually reducing this option can reduce the effectiveness of the FrontVü Alarm, reducing your reaction time to low depth readings. Transmit Angle: Adjusts the focus of the transducer to the port or starboard side. This feature is available only with RealVü capable Panoptix transducers, such as the PS30, PS31, and PS60. Transmit: Stops the active transducer from transmitting. FrontVü Alarm: Sets an alarm to sound when the depth in front of the vessel is less than the specified value (Setting the FrontVü Depth Alarm, page 32). This is available only with Panoptix FrontVü transducers. Sonar Setup: Adjusts the setup of the transducer and the appearance of the sonar returns. Edit Overlays: Adjusts the data shown on the screen (Customizing the Data Overlays, page 4). Setting the LiveVü and FrontVü Transducer Transmit Angle This feature is available only with RealVü capable Panoptix transducers, such as the PS30, PS31, and PS60. You can change the transducer transmit angle to aim the transducer at a particular area of interest. For example, you might aim the transducer to follow a bait ball or focus on a tree as you pass it. 1 From a LiveVü or FrontVü sonar view, select Menu > Transmit Angle. 2 Select an option. Setting the FrontVü Depth Alarm WARNING The FrontVü depth alarm is a tool for situational awareness only, and may not prevent groundings in all circumstances. It is the obligation of the vessel operator to ensure safe operation of the vessel. This alarm is available only with Panoptix FrontVü transducers. You can set an alarm to sound when the depth is below a specified level. For best results, you should set the bow offset when using the front collision alarm (Setting the Bow Offset, page 33). 1 From the FrontVü sonar view, select Menu > FrontVü Alarm. 2 Select On. 3 Enter the depth at which the alarm is triggered, and select Done. On the FrontVü screen, a depth line shows the depth at which the alarm is set. The line is green when you are in a safe depth. The line turns yellow when you are going faster than the forward range gives you time to react (10 seconds). It turns red and sounds an alarm when the system detects an obstruction or the depth is less than the entered value. CAUTION The ability to effectively avoid running aground with FrontVü sonar decreases as your speed rises above 8 knots. LiveVü and FrontVü Appearance Settings From a LiveVü or FrontVü Panoptix sonar view, select Menu > Sonar Setup > Appearance. Color Scheme: Sets the color palette. Color Gain: Adjusts the intensity of colors shown on the screen. You can select a higher color gain value to see targets higher in the water column. A higher color gain value also allow you to differentiate low intensity returns higher in the water column, but this causes a loss in the differentiation of the returns at the bottom. You can select a lower color gain value when targets are near the bottom, to help you distinguish between targets and high intensity returns such as sand, rock, and mud. Trails: Sets the how long the trails appear on the screen. The trails show the movement of the target. Bottom Fill: Colors the bottom brown to distinguish it from the water returns. Grid Overlay: Shows a grid of range lines. Scroll History: Shows the sonar history in a traditional sonar view. RealVü Appearance Settings From a RealVü sonar view, select Menu > Sonar Setup > Appearance. Point Colors: Sets a different color palette for the sonar return points. Bottom Colors: Sets the color scheme for the bottom. Bottom Style: Sets the style for the bottom. When you are in deep water, you can select the Points option and manually set the range to a shallower value. Color Key: Shows a legend of the depths the colors represent. Perspective Appearance Settings the Perspective sonar view, select Menu > Sonar Setup > Appearance. Color Scheme: Sets the color palette. Color Gain: Adjusts the intensity of colors shown on the screen. You can select a higher color gain value to see targets higher in the water column. A higher color gain value also allow you to differentiate low intensity returns higher in the water column, but this causes a loss in the differentiation of the returns at the bottom. You can select a lower color gain value when targets are near the bottom, to help you distinguish between targets and high intensity returns such as sand, rock, and mud. Trails: Sets the how long the trails appear on the screen. The trails show the movement of the target. Grid Overlay: Shows or hides grids of range lines. The Grid option shows a square grid. The Radial option shows a circular grid with radial angle lines. Boat Icon: Shows the icon of the boat in the upper-right corner. Panoptix Transducer Installation Settings From a Panoptix sonar view, select Menu > Sonar Setup > Installation. Install Depth: Sets the depth below the water line where the Panoptix transducer is mounted. Entering the actual depth at which the transducer is mounted results in a more accurate visual presentation of what is in the water. Bow Offset: Sets the distance between the bow and the forward view Panoptix transducer installation location. This allows you to view the forward distance from the bow instead of the transducer location. This applies to Panoptix transducers in the FrontVü, LiveVü Forward, and RealVü 3D Forward sonar views. Beam Width: Sets the width of the down view Panoptix transducer beam. Narrow beam widths allow you to see deeper and farther. Wider beam widths allow you to see more coverage area. This applies to Panoptix transducers in the FrontVü, LiveVü Down, and LiveVü Forward sonar views. Use AHRS: Enables the internal attitude heading and reference system (AHRS) sensors to detect the installation angle of the 32 Sonar Fishfinder