User manual LOWRANCE X67C

[. . . ] 988-0151-062 www. lowrance. com Fish-finding & Depth Sounding Sonar X67C Installation and Operation Instructions Copyright © 2003 Lowrance Electronics, Inc. Lowrance® is a registered trademark of Lowrance Electronics, Inc. Marine-Tex is a trademark of Illinois Tool Works Inc. Lowrance Electronics may find it necessary to change or end our policies, regulations, and special offers at any time. We reserve the right to do so without notice. [. . . ] As you're learning the basics, there is one setting you might want to tinker with from time to time -- Sensitivity. Sensitivity controls the unit's ability to pick up echoes. If you want to see more detail, try increasing the sensitivity, a little at a time. There are situations when too much clutter appears on the screen. 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. Fig. 1 Bait school Thermocline with fish Fish arches Fig. 4 These figures show results of different sensitivity levels on the same location. 1: Sensitivity at 87 percent, determined by Auto Sensitivity. 4: Sensitivity set at 100 percent. 35 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. 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 sonar 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 sonar 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. Press to decrease sensitivity; press to increase sensitivity. When it's set at the desired level, press EXIT. (When you reach the maximum or minimum limit, a tone sounds. ) At left, Sonar Menu with Sensitivity command selected. [. . . ] 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. Central Standard Time, M-F Lowrance Electronics may find it necessary to change or end our shipping policies, regulations, and special offers at any time. [. . . ]