Garmin GPSMAP 740/740s Owner's Manual - Page 78

Sonar 3. Complete an action: • Select Duration to set the time-elapsed scale ➊. The default setting is 10 minutes. Increasing the timeelapsed scale allows you to view temperature variations over a longer period of time. Decreasing the time-elapsed scale allows you to view more detail over a shorter period of time. • Select Scale to set the temperature-range scale ➋. The default setting is 4 degrees. Increasing the temperature-range scale allows you to view more variation in temperature. Decreasing the temperaturerange scale allows you to view more detail in the variation. • Select Reset to recalculate the automatic depth scale range. Reset appears only when the scale setting is set to Auto. ➋ ➊ Transducer Temperature Log Waypoints on the Sonar Screen Pausing the Sonar Display 1. From the Home screen, select Sonar. 2. Select a sonar view. 3. Select Menu > Pause Sonar. Creating a Waypoint on the Sonar Screen 1. From the Home screen, select Sonar. 2. Select a sonar view. 3. Select Menu > Pause Sonar. 4. Touch and drag the intersection point of the depth line and the distance line to set the location of the waypoint. 5. Select Create Waypoint. Sonar Display Appearance You can define and adjust settings for all sonar views. Setting Sonar Screen Scroll Speed You can set the rate at which the sonar scrolls from right to left. 1. From the Home screen, select Sonar > Sonar Setup > Scroll Speed. 2. Complete an action: • Select Ultrascroll™, Fast, Medium, or Slow to set the scroll speed manually. • Select Auto to have the scroll speed automatically adjust to the water speed of your boat, if you are using a water-speed sensor or a speed-capable transducer. 74 GPSMAP 700 Series Owner's Manual