Garmin 550C Owner's Manual

1 Getting Started Getting Started Keys echo 300c echo 200, echo 500c, and echo 550c MENU Displays or hides a list of options. ENTER Selects a menu item. Scrolls through options or changes settings. Selects page options (page 4) on the echo 200, echo 500c, and echo 550c. Turns the device on or off and adjusts the backlight. Turning On and Turning Off the Device Press . Color or Grayscale Display The echo 200 has a grayscale display. The echo 300c, echo 500c, and echo 550c have color displays. Configuring the Initial Device Settings ...

7 Viewing Pages Viewing the Temperature Log Page The Temperature Log page displays a graphic log of water temperature readings over time. 1. From any page, select MENU > Pages > Log. 2. If the temperature log or the split screen log is shown, select MENU > Change Log > Temperature. Setting the Temperature Log Duration Before you can set the temperature log duration, you must open the temperature log (page 7) or the split screen log (page 7). You can change the time scale on the water temperature log. Increasing the time scale all ...

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Using the echo Setting the Drift Alarm You can set an alarm to sound when variations in depth at your present location exceed the specified depth. NOTE: Alarm settings are saved when the device is turned off. 1. From any page, select MENU > Setup > Alarms > Drift > On. 2. Enter the value of the alarm setting (page i). 3. Select ENTER to accept the value. The alarm setting appears. 4. Select Done or Confirm. Sonar Gain and Noise Settings You can adjust the amount of gain and noise on a sonar screen. When you set the gain on o ...

9 Using the echo Using the echo Sonar Screen Settings The Full Screen page, the Split Zoom page, the Split Frequency page, and the Flasher page are a visual representation of the area beneath your boat. These sonar views can be customized as indicated in the following paragraphs. Adjusting the Range of the Depth Scale Before you can adjust the range of the depth scale, you must open the Full Screen page (page 4), the Split Zoom page (page 5), the Split Frequency page (page 5), or the Flasher page (page 8). You can adjust the range ...

15 Using the echo Setting Noise Rejection Before you can set the noise rejection, you must open the Full Screen page (page 4), the Split Zoom page (page 5), or the Split Frequency page (page 5). You can minimize the appearance of weak sonar returns by increasing noise rejection. When you set noise rejection on one page, that setting is applied to the other pages. NOTE: To set noise rejection on the Split Frequency page, you must set the 77 kHz and the 200 kHz screens separately. 1. Select MENU > Setup > Sonar Setup > Noise Reject. ...