[. . . ] They indicate that you should highlight a series of items on the screen using or keys (page 2), and press the ENTER key after each item. For example, if you see "select MENU > Pause, " you should press MENU, press or until Pause is highlighted, and then press ENTER. registering Your Device Help us better support you by completing our online registration today. · Keep the original sales receipt, or a photocopy, in a safe place. echo 100 and echo 150 Owner's Manual 1 Getting Started Getting Started Keys Configuring the Initial Device Settings Before you can use the device the first time, you must configure a series of initial settings. [. . . ] · To display the sonar screen with normal sensitivity, select Auto-Med. · To display the sonar screen with lower sensitivity and less noise, select Auto-Low. Pausing the Screen Setting the Shallow Water and Deep Water Alarms From the Sonar screen, select MENU > Pause. After pausing the sonar screen, select MENU > Resume. You can set an alarm to sound when the depth is shallower or deeper than a specified value. Select an option: · To sound an alarm when the depth is shallower than the specified depth, select Shallow > On. · To sound an alarm when the depth is deeper than the specified depth, select Deep > On. The alarm setting appears on the Alarms screen. resuming the Screen Setting the Gain Manually The gain setting controls the sensitivity of the sonar receiver to compensate for water depth and water clarity. To set the gain manually, increase the gain setting until you begin to see "noise" in the water portion of the screen, then slightly decrease the gain. Select to increase the gain setting until you begin to see noise in the water portion of the screen. Select to decrease the gain. echo 100 and echo 150 Owner's Manual 5 Using the echo 100 and echo 150 Setting the Battery Voltage Alarm You can set an alarm to sound when the battery reaches a specified low voltage. From the Sonar screen, select MENU > Setup > Alarms > Battery > On. The alarm setting appears on the Alarms screen. Selecting a Frequency for the echo 150 NOTE: The echo 100 operates only at 200 kHz. When using a dual frequency transducer, you can select a frequency for the echo 150 Sonar screen when using a dual frequency transducer. You can show data from a 200 kHz sonar signal or data from a 77 kHz sonar signal. The 200 kHz frequency shows better detail, has a narrower beam, and is typically used in shallower waters. The 77 kHz frequency penetrates deep water more effectively and has a wider beam, so it can be used to cover a larger area. [. . . ] Clean the outer casing of the device (not the screen) using a cloth dampened with a mild detergent solution. Wipe the device dry. Cleaning the Screen Use a soft, clean, lint-free cloth. Gently wipe the screen with the cloth. echo 100 and echo 150 Owner's Manual 7 Appendix Software License Agreement BY USING THE ECHO 100 OR ECHO 150, YOU AGREE TO BE BOUND BY THE TERMS AND CONDITIONS OF THE FOLLOWING SOFTWARE LICENSE AGREEMENT. [. . . ]