It provides navigation data to the waypoint regardless of obstructions. Therefore, the prudent naviga- tor will not only take advantage of all available navigation tools when trav- elling to a waypoint, but will also visually check to make certain a clear, safe path to the waypoint is always available.
Extended storage temperatures higher or lower than specified will cause the liquid crystal display to fail. Neither this type of failure nor its consequences are cov- ered by the warranty. For more information, consult the factory customer service department. The menus automatically erase and the water distance display is reset to 0.
Highlight the de- sired label with the arrow keys, then press the ENT key to change it. The default is on. The DGPS sys- tem transmits correction signals that increase the accuracy to about 10 meters. It needs this data so that it can calculate which satellites should be in view. It should now have position, time, and date, thereby giving it the data it needs to determine which satellites are in view.
Once the satellites are known, the receiver searches for only those satellites, making a lock faster than an auto search method.
Page Require Dgps tude is flashing, simply ignore the altitude display until it quits flashing. Beneath the circular graph are the bar graphs, one for each satellite in view. Page Customizing The Navigation Screen When navigating to a waypoint, the Navigation screen looks like the one at right. Your ground speed, track, distance and bear- ing to waypoint, and course are all shown digitally on this screen.
Closing speed is also known as velocity made good. The MMC must be installed into the unit before maps will show on the screen. If these items were not included with your unit, then you will need to purchase the accessory pack that includes these items. The maps on the CD have the majority of their detail in far southern You can customized each map with different settings.
For example, the map on the left can have a zoom range of. Page Cursor Distance To turn the cursor on, simply press the arrow key in the direc- tion you want the cursor to move. This lets you view areas on the plotter that are away from your present position. Page 42 as the initial bearing to the waypoint. In this view, the present position indicator appears to move to- wards the lower right side of the screen. Page Auto Zoom Auto Zoom This receiver has an autozoom feature that eliminates much of the button pushing that competitive units force you to make.
It works in conjunction with the navigation features. First, recall a waypoint. See the waypoint section for more information on navigating to a waypoint. Then, with the autozoom mode on, the unit zooms out until the entire course shows, from the present position to the destination waypoint recalled waypoint. This includes, waypoints, trails, icons, cities, highways, etc. You can selectively turn on or off any of these items, customizing the map to your needs.
Page Plot Trail appears with the icon placed at the cursor crosshairs. Press the EXIT key to erase the cursor. Icons can be erased from the plotter individually, all of a spe- cific type, or all at once. Page Edit Trail The list of saved trails shows on this screen. Page 47 You can change this to the distance and bearing from one point to the next leg , travel time to each point, or arrival time for each point.
Select the de- sired data from the list and press the EXIT key. The options are automatic, time, or distance. You can save your present position, cursor position, or enter a coordinate and save it as a waypoint.
For example, you may wish to store the location of your boat dock as a waypoint before starting on a trip. Press the right arrow key to move to the Subcategory sec- tion.
This helps to eliminate errors in the position due to atmospheric effects and other conditions. The small plotter screen shows your present position. The dotted line is called a course line and is the shortest path from the starting location to the destination.
Page Cancel Navigation The Man Overboard symbol is also placed on the map screen in the appropriate location. You can use the map screen to navi- gate to the Man Overboard loca- tion, if you so desire. To stop the unit from showing navigation to the man overboard position, see the Cancel Naviga- tion section below. The screen shown at right appears. This unit can store up to routes. The bottom depth and surface tempera-. This changes all echoes into short horizontal bars, replicating a flasher sonar.
See the Zoom section for more information. The frequency of the transducer in use shows at the bottom of the screen. A split chart shows the underwater world from the surface to the bottom on the right side of the screen.
The left side shows an enlarged version of the right side. The zoom range shows at the bottom left corner of the screen. This chart shows sonar data from the 50 kHz transducer element if equipped on the left side of the screen, and data from the kHz transducer element on the right.
All features are the same as the Full Sonar Chart. This mode shows the chart on the right side of the screen. The left side has seven large digital boxes containing the Water Depth at the top of the screen, with the shallow and deep alarm settings immediately beneath the depth Water Speed from an optional speed sensor , Water Distance distance travelled or log also requires a speed sensor. Water Temperature, Temperature 2, Temperature 3, and input voltage. Note: Temperature 2 and 3 require additional temperature sensors.
Scroll down to the bottom of this menu to the Customize label and select it. The Water Speed bar flashes, signifying that the window can be changed.
Press the. ENT key to show a menu of available options. Choose the data that you want shown at this location, then press the ENT key to select it.
To change another, simply press the down arrow key. The ID bar will flash on the selected box. Press the EXIT key to stop the bar from flashing. This unit uses menus extensively to guide you through its functions and features. To use the menus, press the MENU key. Pressing the MENU key once brings up the first set of menus, pressing the menu key again brings up the second set.
Use the arrow keys to navigate through the menus. Generally, to make a selection from a menu, highlight the desired item with the arrow keys, then press the ENT enter key. The EXIT key erases the menus.
Note: There is a mode that splits the screen in half, with the map on the left and the sonar on the right. When this screen is activated, you will have to specify which side the menu key corresponds to. The black bar at the top of the screen will begin flashing above either the map or the sonar.
Use the arrow key to select the side that you wish to assign the MENU key to. To reassign the menu key, repeat the above steps. The sensitivity controls the ability of the unit to pick up echoes. A low sensitivity level excludes much of the bottom information, fish signals, and other target information. High sensitivity levels let you see this detail, but it can also clutter the screen with many undesired signals.
Typically, the best sensitivity level shows a good solid bottom signal with Grayline and some surface clutter. The sensitivity is adjusted to keep a solid bottom signal displayed, plus a little more when the unit is in the automatic mode. This gives it the capability to show fish and other detail. However, situations occur where it becomes necessary to increase or decrease the sensitivity.
This typically happens when you wish to see more detail, so an increase in sensitivity is indicated. The procedure to adjust it is the same whether the unit is in the automatic or manual mode. The screen at right appears. The sensitivity control has a vertical adjustment bar.
The number at the bottom of the bar shows the percentage of sensitivity in use. To increase the sensitivity level, press the up arrow key. As you press the key, the control knob. You can also see the difference on the chart record as it scrolls. When the sensitivity is at the desired level, release the key.
To decrease the sensitivity level, press the down arrow key. The control knob will move downward and the percentage will decrease. When you reach either the maximum or minimum limit, a tone sounds. The unit can adjust the sensitivity for you. It bases the sensitivity level on water depth and conditions. To turn this on, press the MENU key, then. To turn it off, repeat the above steps.
Press the EXIT key to erase the menu. This allows you to tell the difference between a hard and soft bottom. For example, a soft, muddy or weedy bottom returns a weaker signal which is shown with a narrow or no gray line. A hard bottom returns a strong signal which causes a wide gray line.
If you have two signals of equal size, one with gray and the other without, then the target with gray is the stronger signal. This helps distinguish weeds from trees on the bottom, or fish from structure. The level chosen by the unit at power on is usually adequate for most conditions. The screen above appears. Use the up or down arrow keys to adjust the gray level.
You can see the change on the chart record as you press the keys. When turned on for the first time, the bottom signal is automatically placed in the lower half of the screen. This is called Auto Ranging and is part of the automatic function. However, depending upon the bottom depth and the current range, you can change the range to a different depth.
The screen. The range numbers that are gray cannot be selected. Press the up or down arrow keys to select a different range. The available ranges are , 20, 30, 40, 60, , , , , , , , , , and feet. After selecting the range, press the EXIT key to erase the range menu.
Virtually any segment of the water can be displayed by using the upper and lower limit feature. This lets you pick the shallow and deep range limits that are shown on the screen, provided there is at least ten feet between the upper and lower limit.
For example, a range from 12 feet to 34 feet. A screen similar to the one at right appears. Upper Limit is highlighted. To select it, press the ENT key. To select the lower limit, press the down arrow key to highlight it, then press the ENT key. Once a limit window is selected, the range inside the window.
Use the arrow keys to both select and change the numbers in the window. Press the ENT key to accept the change.
The Upper and Lower Limit menu erases and the unit begins scrolling echoes across the screen using the new range values. Changing the upper and lower limits gives you far greater control over the range. Virtually any segment of the water, from the surface to the bot-.
This unit lets you zoom the display quickly and easily by pressing the ZIN key. Pressing it once doubles the size 2X of all echoes on the screen. Pressing it again quadruples the size of the echoes 4X. The zoom bar on the. For example, pressing the ZIN key once will enable a 2X zoom which will show all echoes that are between the top and bottom of the 2X zoom bar. Pressing the key again will give a 4X zoom and only the echoes between the top and bottom of the 4X bar will show on the screen.
Repeat these steps to start the chart again. The rate that echoes scroll across the screen is called the chart speed. A sliding knob adjustment appears on the screen. The default is maximum. Press the up or down arrow key to adjust the speed, then press the EXIT key to erase the menu. The depth cursor consists of a horizontal line with a digital depth box on the right side.
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