User manual HUMMINBIRD 405SX

[. . . ] 405SXSINGLEBEAM fishfinder OPERATIONS MANUAL THANK YOU THANK YOU FOR CHOOSING YOUR 405SX FISHFINDER, MADE BY TECHSONIC INDUSTRIES, MANUFACTURER OF AMERICA'S #1 NAME IN FISHFINDERS, HUMMINBIRD. HUMMINBIRD HAS BUILT ITS REPUTATION BY DESIGNING AND MANUFACTURING TOP QUALITY, THOROUGHLY RELIABLE MARINE EQUIPMENT. YOUR HUMMINBIRD PRODUCT IS DESIGNED FOR TROUBLE-FREE USE IN EVEN THE HARSHEST MARINE ENVIRONMENT. IN THE UNLIKELY EVENT THAT YOUR HUMMINBIRD DOES REQUIRE REPAIRS, WE OFFER AN EXCLUSIVE SERVICE GUARANTEE. [. . . ] Using manual Depth Range control, you can view sonar information from the area near the surface in greater detail. To return to automatic Depth Range control, press the MENU button until the Depth Range menu appears on-screen and use the UP ARROW to select AUTO. The 405SX uses a greatly enhanced Zoom capability called "TruZoom" which offers expanded information on a select area of sonar information. Zoom is similar to Depth Range because it controls the range of information displayed on screen. Zoom, however, allows for selection of ranges beneath the surface so any area of water between the surface and the bottom can be enlarged to provide more detailed information. By using the full display to show a small area of coverage, the effective display resolution is increased, and the unit's ability to separate close targets is enhanced. The Zoom ranges available are dependent on the current depth range. In the 15' depth range, TruZoom displays a range equal to one half the current depth range. In the 30', 60', 120', 180', 240', 360', 480' and 600' depth ranges, TruZoom displays a range equal to one fourth the current depth range. The box at the right side of the screen outlines the area to be zoomed. The 405SX shows Zoom range in conjunction with the full depth range. The Zoom range is shown on the left side of the screen and full range information is shown on the right side of the display. The area which is being enlarged by Zoom is indicated by the square box. Zoom can either operate automatically, in which the Zoom range is constantly adjusted to show the bottom, or manually, in which the user controls the location of the Zoom range. 17 USING THE 405SX MENU FUNCTIONS "Automatic" Zoom is especially helpful when looking for structure or bottom detail. The "Automatic" Zoom keeps the bottom in view even in quickly changing terrain. "Manual" Zoom provides detailed information of any area from the surface to the bottom. In "Manual" Zoom, the Zoom range does not move as the terrain changes. To operate Zoom, press MENU repeatedly until the Zoom menu is on-screen. Three options are available: "Off" (Factory Setting), "Auto" (Automatic bottom tracking Zoom), and "Manual" (User controlled Zoom range). Press the DOWN ARROW once to highlight Auto or twice to highlight Manual. If Manual is selected a submenu will appear allowing manual zoom range adjustment. When the menu disappears, full range information is displayed on the right as always. [. . . ] Humminbird reserves the right to perform modifications or improvements on its products without incurring the obligation to install the changes on units previously manufactured, sold, delivered, or serviced. THIS IS A FULL WARRANTY AS DEFINED BY THE FEDERAL WARRANTY ACT, EFFECTIVE JULY 4, 1975. SERVICE POLICY This Service Policy is valid in the United States only. This applies to Humminbird units returned to our factory in Eufaula, Alabama, and is subject to change without notice. [. . . ]