User manual EAGLE FISHELITE 640C ADDITIONAL INSTRUCTIONS

[. . . ] 988-0143-871 www. eaglesonar. com FishElite 640c & ® SeaCharter 640cDF Fish-finding Sonars & Mapping GPS ® Installation and Operation Instructions Copyright © 2005 LEI-Eagle All rights reserved. No part of this manual may be copied, reproduced, republished, transmitted or distributed for any purpose, without prior written consent of Eagle Electronics. Any unauthorized commercial distribution of this manual is strictly prohibited. LakeMaster and ProMaps are trademarks or registered trademarks of Waypoint Technologies, Inc. [. . . ] This will be entered as a positive 1. 5 feet, which makes the depth indicators perform as if the transducer's higher in the water than it really is. The Keel Offset dialog box appears with a plus (+) sign at the front of the box. Press to the second number, them press to change the number to 5 and press EXIT. The depth indicators now accurately show the water depth from surface to bottom. Sensitivity & Auto Sensitivity The sensitivity controls the ability of the unit to pick up echoes. A low sensitivity level -- from zero to 50 percent -- excludes much of the bottom information, fish signals and other target information. High sensitivity levels let you see this detail, but it can also clutter the screen with many undesired signals. Typically, the best sensitivity level shows a good solid bottom signal with Colorline and some surface clutter. When the unit is in the automatic mode, sensitivity is automatically adjusted to keep a solid bottom signal displayed, plus a little more power. Situations occur when an increase or decrease in sensitivity is needed. An increase in sensitivity is necessary when you want to see more detail. A decrease in sensitivity will clear up the screen when it becomes cluttered by tiny air bubbles caused by boat wakes or wave action. The control bar used to adjust sensitivity up or down is the same whether the unit is in the automatic or manual mode. In automatic you can adjust sensitivity up to 100 percent, but the unit will limit your minimum setting. In auto, the unit will continue to make small adjustments, allowing for the setting you selected. In manual mode, you have complete control over sensitivity with the ability to set it anywhere from zero to 100 percent. Once you select a level in manual, the unit will continue to use that exact sensitivity setting until you change it or revert to auto mode. When it is set at the desired level, press EXIT. 73 Sonar Menu with Sensitivity command selected (left). The Sensitivity Control Bar (right). To adjust sensitivity in manual mode: 1. First, turn off Auto Sensitivity: from the Sonar Page, press MENU| to AUTO SENSITIVITY|ENT. To turn Auto Sensitivity back on: From the Sonar Page, press MENU| to AUTO SENSITIVITY|ENT|EXIT. Tip: For quicker sensitivity adjustments, leave the Sensitivity Control Bar on the screen as the chart scrolls. You can see the changes on the screen as you press the up and down arrows. This is handy when there is a lot of clutter in the water and you are matching the sensitivity to rapidly changing water conditions. Sonar Chart Mode The default color scheme for the sonar chart is White Background, but we offer other variations to suit your viewing preferences. [. . . ] If you're in the United States and you have technical, return or repair questions, please contact the Factory Customer Service Department. Before any product can be returned, you must call customer service to determine if a return is necessary. Many times, customer service can resolve your problem over the phone without sending your product to the factory. To call us, use the following toll-free number: 800-324-1356 8 a. m. [. . . ]