User manual EAGLE FISHMARK 500C Operation Instruction

[. . . ] 988-0156-031 www. eaglesonar. com Fish-Finding & Depth-Sounding Sonars Installation and Operation Instructions Copyright © 2004 LEI-Eagle All rights reserved. Eagle® is a registered trademark of LEI FishMark® and SeaFinder® are registered trademarks of LEI Eagle Electronics may find it necessary to change or end our policies, regulations, and special offers at any time. Other models covered in the manual are similar. 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. For free owner's manuals and the most current information on this product, its operation and accessories, visit our web site: www. eaglesonar. com Eagle Electronics P. O. [. . . ] As you're learning the basics, there is one setting you might want to tinker with from time to time -- Sensitivity. If you want to see more detail, try increasing the sensitivity, a little at a time. Decreasing the sensitivity can reduce the clutter and show the strongest fish echoes, if fish are present. As you change the sensitivity setting, you can see the difference on the chart as it scrolls. 46 Fig. 4 These figures show results of different sensitivity levels on the same location. 4: Sensitivity set at 100 percent. You can change the sensitivity level whether you are in Auto Sensitivity mode or Manual Sensitivity mode. The adjustment method works the same in both modes, but it gives you slightly different results. 47 Adjusting sensitivity in Auto Sensitivity Mode is similar to manually adjusting a car's speed with the accelerator pedal while cruise control is on. You can tell the car to run faster, but when you let off the gas the cruise control automatically keeps you from running slower than the minimum speed setting. In the unit, auto mode will let you increase sensitivity to 100 percent, but the unit will limit your minimum setting. This prevents you from turning sensitivity down too low to allow automatic bottom tracking. When you change the setting with auto turned on, the unit will continue to track the bottom and make minor adjustments to the sensitivity level, with a bias toward the setting you selected. Adjusting sensitivity in Manual Sensitivity Mode is similar to driving a car without cruise control -- you have complete manual control of the car's speed. In the unit, manual mode allows you to set sensitivity at 100 percent (maximum) or zero percent (minimum. ) Depending on water conditions, the bottom signal may completely disappear from the screen when you reduce sensitivity to about 50 percent or less!Try adjusting sensitivity in both auto and manual modes to see how they work. (When you reach the maximum or minimum limit, a tone sounds. ) 48 At left, Sonar Menu with Sensitivity command selected. At right, the Sensitivity Control Bar. NOTE: If you want to change the sensitivity in Manual Mode, first turn off Auto Sensitivity: from the Sonar Page, press MENU| to AUTO SENSITIVITY|ENT| to SENSITIVITY|ENT. When it's set at the desired level, press EXIT. Important Tip: While you are experimenting and learning, it's possible to scramble the settings so that the sonar picture disappears from your screen. If that happens, remember that it's easy to switch back to full automatic operation by simply restoring the factory auto settings. To Restore Factory Settings 1. All options are reset, and the unit reverts back to the Full Sonar Chart. Full Sonar Chart You may have noticed in the quick reference that we used fish arches in full sonar chart mode for our example, and not the popular Fish I. D. is an easier way for a sonar novice to recognize a fishy signal return when he sees it. [. . . ] 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: 800-324-1354 8 a. m. Central Standard Time, M-F Eagle Electronics may find it necessary to change or end our shipping policies, regulations, and special offers at any time. [. . . ]