The unit is in the automatic mode. The depth range displays on the upper left side of the screen. In the example at right, the range is from 0 to 60 feet and the bottom depth is 48.6 feet. Fish ID 128 14 NOTE: Turning the unit off erases all user settings and it returns to the system defaults. For example, if you turn the lights on, then turn the unit off, the next time you turn the unit on, the lights will be off, since the default setting for the lights is off. MENUS This sonar unit uses menus

(Feet/F, Meters/C, Fathoms/C, Default = Meters/C, where F stands for Fahrenheit and C stands for Celsius) Scroll through all SetUp menu choices to exit the SetUp menu. SideFinder™ (Setting Saved in Memory, Downlooking and SideFinding™ Sonar Units only) Press the POWER-MENU key until SIDEFINDER appears. Select either OFF or ON to display the SideFinder™ window on the screen (Off, On, Default = Off) SideFinder™ Range (Setting Saved in Memory, Downlooking and SideFinding™ Sonar Units only) Press th

Spin meter gear to change setting. NOTE: Actual fishing depth may vary from depth shown on meter due to trolling speed and weight of cannon ball. (See "Blowback" on page 12) The Short Stop System The Short Stop system is composed of three critical components: the electronic unit, the reel set screw, and the trolling weight insulator. While the downrigger cable is in the water, there is a minute electrical current that flows between the cable and the grounded metal boat components in the water. W

Once the unit figures its latitude and longitude, it plots that position on the moving map shown on the screen. The whole process takes place several times a second! The performance doesn't stop there. Stored in the permanent memory of each unit is a basic background map of the entire world. We lock it in here at the factory — you can't change or erase this map. The background map is suitable for many navigation chores, but for maximum accuracy and much more detail, you need our optional map 6 m

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5 Update your player Your player is controlled by an internal program called the firmware. Newer versions of the firmware may have been released after you have purchased your player. A software program called Magnavox Device Manager checks for firmware updates that are available on the Internet. Install Magnavox Device Manager from the supplied CD or download the latest version from 5.1 Manually verify software status 1 Make sure you are connected to the internet. 2 Connect your player to the co

Revision A Part Number GM494 Northstar a unit of Brunswick New Technologies Marine Electronics 30 Sudbury Road Service: 978/897-6600 Acton, Massachusetts 01720 Sales: 800/628-4487 Contents 1 Welcome . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Welcome to the Northstar 491. . . . . . . . . . . . 2 Using this manual. . . . . . . . . . . . . . . . . . . . . . 2 Technical support. . . . . . . . . . . . . . . . . . . . . . 4 How echo sounding works. . . . . . . . . . . . .