User manual HUMMINBIRD N825

[. . . ] Overview How the NS25 Works Congratulations on your purchase of the Hummingbird NS25. The NS25 uses GPS and sonar capability to determine your position, display it on a map, and provide detailed underwater information. The NS25 consists of four primary components; the control head, GPS receiver (SAT MAX), card reader and transducer. The GPS receiver receives signals transmitted by the constellation of GPS satellites orbiting the earth. [. . . ] This allows you to use the Simulator at home to experiment with the various set-up options, and retain your selected settings for normal operation. However, changes made while in Demonstration mode will not save. Simulator Operation The NS25 contains a Simulator mode that allows you to use the unit as if you are on the water and learn how to operate many of the features. It can be changed to an area you are familiar with, however, the most detailed area is the default location. In Simulator mode, the unit saves all waypoints, routes, settings, and changes. Selecting the simulator option on the Start-Up screen after your power-up the unit enables the simulator. When this screen is shown, simply press the DOWN ARROW to highlight "Simulator. " When the screen times-out, the unit will be in simulator mode. To exit simulator mode, turn the unit off. Demonstration Operation The NS25 has a demonstration function that works like the simulator. However, this operation is only accessible if no GPS Receiver is detected. Settings and waypoints are not saved to unit memory while in demonstration mode. To exit demonstration mode, turn the unit off. Getting Started As you begin using the NS25, there are some features in the set-up menu that you may want to customize to set up the unit's full functionality. For example, you may want to select and adjust Units/Speed, Units/Distance, Time Format, Coordinates, or North Reference. See the Set-Up section under "Using the Menu System" for more information. Button Functions The NS25 has 10 buttons to control all unit functions. See the following illustration and descriptive table listing buttons and functionality. Power/Light: Turns on the unit initially. Pressing and holding the Power button for three seconds turns unit off. Pressing it briefly while the unit is operating displays the Adjust Backlight menu. View: Selects the six different views: North-Up, Course-Up, Combo, Sonar, Numeric, and System Status. Cursor: Used to move the cursor (cross-hair line visible in graphics area), pan the map, and select waypoints. Menu: Displays the Main Menu Bar list and toggles through each of the five menu options. Controls information display settings for graphical and numeric information. Clear: Exits any current operation, clears screen of bird-notes, and mutes an active alarm. When no action has been initiated a menu provides options to clear course history, current route, and temporary waypoints. Views Six views in the NS25 display your position, maps, numeric information boxes, and sonar information. Press the VIEW button to toggle between each of the views in the sequence: North-Up, CourseUp, Combo, Sonar, Numeric, and System Status. This toggle function is a continuous loop, so if you miss a view, keep pressing the VIEW button to return to the view you would like to display. On views displaying a map, your present position is indicated by a square if you are stationary, or a boat icon if you are moving. [. . . ] The red wire is used for signal and the black wire is used for ground. The NS25 should be set at a baud rate of 4800 or 9600 (default), whichever is compatible with your Differential Beacon Receiver. This setting is made in the Set-Up menu (see "Using the Menu" ­ Set-Up for more information). If connected, check DGPS field in the System Status view to confirm unit is receiving correction signal. [. . . ]