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WAYPOINT NAVIGATION ... 27 Navigating to a cursor location ... 27 Navigating to a Waypoint using the Plotter ... 28 OTHER WAYPOINT OPTIONS ... 28 Move a Waypoint ... 28 DISTANCE BETWEEN WAYPOINTS ... 29 Project a Waypoint ... 30 Position Averaging ...
GPS receiver at a price that was impossible just a few years ago. The ® Rockwell receiver built inside has 12 channels that will track all of the satellites that are in view of your location. It’s acquisition time and tracking ability are second to none in its class.
GPS receiver less accurate. These er- rors are called selective availability, or SA. How bad is it? They guarantee that the position reported by a GPS receiver that meets their specifica- tions is within 100 meters horizontally and 150 meters vertically 95% of the time.
GPS receiver and charges the DR-121. You can even use the receiver while the battery is charging! To install the NiMH battery, remove the battery cover and place the bat- tery into the compartment as shown on the next page.
This unit does not supply power to the antenna. OPERATION Keyboard There are 12 keys on the keyboard. You navi- gate through the menus, adjust the chart’s cursor, and enter data using the arrow keys. PAGES The five major modes of operation are ac- cessed using the PAGES key.
The GPS receiver is tracking satellites that are sur- rounded by a black box. If the satellite number is not surrounded by a box, then the receiver hasn’t locked onto that satellite and it isn’t being used to...
Finding Your Position Auto Search To lock onto the satellites, the GPS receiver needs to know it’s current position, local time, and date. (Elevation (altitude) is also used in the equa- tion, but it’s rarely required to determine a position.) It needs this data so that it can calculate which satellites should be in view.
The unit returns to the satellite status screen. Using the quick initialization method loads a position that’s close to yours into the GPS receiver. 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 much faster than an auto search method.
The unit returns to the full initialization screen. Repeat this for each of the other settings until they’re correct for your location and time. Note: The position doesn’t have to be very accurate. If you enter a posi- tion within one degree of your actual location, the unit will be able to acquire the proper satellites.
To change modes, simply press the PAGES key. A screen similar to the one at right appears. Use the up or down arrow keys to change modes. (The windows mode is shown as “GRP” (groups); group “A” is the first windows group.) Press the right arrow key while the above menu is show- ing to switch between different versions of each mode.
distance you are off-course to the side of the desired course line. The course line is an imaginary line drawn from your position when you started navigating to the destination waypoint. It’s shown on the screen as a vertical dotted line. The default for the cross track error range is 0.25 mile.
in the center. If you drift off course to the left, the line moves to the right . This signifies that you need to steer to the right to get back on course. This is called “chasing the needle”. If you steer towards the line (needle), you’ll always be heading in the correct direction to get back on course.
Plot-3 (see at the top of the next page) is similar to plot-2. The major difference is the steering arrow and waypoint information at the bottom of the screen. When you navigate to a waypoint, the waypoint’s name and number show at the bottom of this screen. The steer- ing arrow always points in the direction to the waypoint.
From the Plotter Options menu, choose Update Options to change the update rate or type. Select the option that you wish to change, use the left or right arrow keys to adjust it, then press the EXIT key to erase the menu.
The course-up mode locks the top of the screen into the original bearing to the waypoint when navigation was first started. (See the navigation section for more information on course, track, and waypoint navigation.) To select a plotter orientation, highlight the “ROTATE” label on the “Plotter Options”...
ICONS The plotter has 28 symbols or “icons” available that can be placed any- where on the screen. They can be used to mark fishing or hunting loca- tions, landmarks, boat ramps, and virtually any point of interest. An icon can be placed at your present position or at the cursor’s location.
Place Icon - Cursor Position To place an icon at the cursor’s position, first use the arrow keys to move the cursor to the location that you wish to place the icon. Next, press the ENT key. Now select the icon using the arrow keys. When it’s highlighted, press the ENT key.
You can delete individual icons by selecting the DEL FROM PLOTTER menu from the Icon Options menu. Once this menu is selected, the unit returns to the plot- ter screen with the cursor activated as shown at right. Use the arrow keys to move the cursor to the icon that you want to erase.
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Group C This group consists of bearing, track, distance to go, and estimated time en route. Group D Bearing, distance to go, track, ground speed, estimated time of arrival, estimated time en route, velocity made good (VMG), estimated time of arrival, and CDI show on this screen.
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Group G This screen shows the present position, bearing, dis- tance to go, track, and ground speed. Group H Present position, a large CDI, distance to go, and estimated time en route show on this screen. Group I - Set Local Time This screen includes a clock that shows your local time, estimated time of arrival, bearing, ground speed, dis- tance to go, and the small CDI.
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Group J - Clock Alarm This group has both estimated time of arrival and en route, plus the clock and a clock alarm. To set the clock alarm, press the MENU key while this group is show- ing, then highlight the Clock Alm Set label and press the right arrow key.
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DGPS receiver connected to the unit. The DGPS corrections at the top of the screen show the corrections the GPS receiver is using. The satellite’s number is follow by an identifier showing its status. They...
Reprogram Boxes The digital boxes on the PLOT-2 and both NAV screens can also be re- programmed, using a method similar to the one used to reprogram the window groups. To customize a screen, first switch to the screen that you want to custom- ize.
WAYPOINTS This GPS receiver gives you the ability to create your own database of locations, called “waypoints’. 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 parked car as a waypoint be- fore starting on a hike.
Saving The Cursor Position as a Waypoint When the cursor is showing on the plotter and you press the WPT key twice, the cursor’s position is placed into the first available waypoint num- ber. In the example screen shown below, the cursor is placed at the desired location.
SELECTING A WAYPOINT In order to edit or navigate to a waypoint, you must first select it. There are three ways to do this: by waypoint number, waypoint list, or nearest. All waypoint selection methods are on the main waypoint menu shown at the top of this page.
Edit Name You can assign a name to each waypoint. The name can have up to eight characters. To do this, first select Name Edit from the Options menu. A screen similar to the one at right appears. Press the up or down arrow keys to select the first let- ter in the name.
WAYPOINT NAVIGATION The GlobalNav 12 makes it easy to navigate to any waypoint. All you have to do is select the waypoint (see page 26), then highlight the “GO TO” label on the waypoint screen and press the right arrow key. The unit im- mediately shows navigation information to the waypoint on all navigation, plotter, and windows screens.
Navigating to a Waypoint using the Plotter The unique “birds-eye” view used by the plotter gives you an easy way to navigate to a waypoint. On the plotter screen shown above, the diamond with a cross in it is your present position. The box with the “S” in it was your starting location when you recalled the waypoint.
pears. Again, in this example, we chose to move waypoint number 1 to waypoint number 9, so we pressed the right arrow key until “9” appeared. As you can see on the screen below, waypoint number 1 is showing in the “From”...
Project a Waypoint You can save a waypoint even if you don’t know it’s position or location on the plotter. This unit lets you project the location of a waypoint from a known way- point using only bearing and distance from the known waypoint.
Position Averaging The effects of Selective Availability, described in the Introduction, can be minimized or virtually eliminated using position averaging. You can only save a waypoint using this method, however the location saved can be much more accurate than any other method without using DGPS. The downside to this method is twofold-It only works to save a waypoint and the unit must be in the location that you want to save, preferably for an hour.
Create a Route To create a route, first press the MENU key, highlight the “PLAN/EDIT ROUTES” label, and press the right arrow key. The screen shown at right appears. This unit can store up to 20 routes. Route number one shows on this page.
unit returns to the waypoint list screen. The second waypoint shows be- neath the first one, with bearing and distance from the first waypoint in the route to the second showing under the second waypoint’s name. The total route distance shows at the bottom of the screen. Continue selecting way- points in this manner until all of the waypoints in the route are on the list.
Following a Route Before starting the route, you’ll need to decide if you want to start at the beginning and travel forward or start at the last waypoint in the route and travel backwards (reverse) to the first waypoint. The default is forward. To change it, press the MENU key, then select the “PLAN/EDIT ROUTES”...
Delete a Route To erase a route, first press the MENU key, then highlight the “Plan/Edit Routes” label and press the right arrow key. Now select the route you want to erase at the top of the screen, then highlight the “Delete Route” label and press the right arrow key.
Altitude ... feet ... feet ... meters The unit will also show bearing in degrees true or mag- netic, and the clock in 12 hour (a.m./p.m.) or 24 hour formats. To change a unit of measure, first select Change Units from the System Setup menu. Highlight the desired selection, then press the left or right arrow key.
DGPS receivers. DGPS gives you more accurate positions than is otherwise possible. All wiring connections to the GlobalNav 12 are made through the power cable. See the sample wiring diagrams on the next page for general wir- ing procedures.
TO GLOBALNAV 12 GLOBALNAV 12 WIRES WHITE WIRE RED WIRE TO +12V BLACK WIRE GROUND WIRES OTHER DEVICE’S WIRES OTHER DEVICE’S RECEIVE DATA WIRE TO GLOBALNAV 12 GLOBALNAV 12 GREEN WIRE WIRES WHITE WIRE RED WIRE TO +12V BLACK WIRE...
(Note: If you have a Magnavox DGPS receiver connected, the GlobalNav 12 can’t send NMEA data.) With the exception of serial communications, typically no other setup needs to be made with these receivers. If you have any other Magnavox or Starlink compatible DGPS receiver connected to the GlobalNav 12, you may need to change the settings.
GPS Setup and press the right arrow key. The screen shown at right appears. Position Format The GlobalNav 12 can show the position in degrees, minutes, and thousandths of a minute (36° 28.700') or degrees, minutes, seconds, and tenths of a second (36° 28' 40.9"). It can also show position in UTM (Universal Transverse Mercator) projection, British, Irish, Swedish, Swiss, Finnish, New Zealand, and Military Grid.
To erase the menu without changing the datum, simply press the EXIT key. A list of the datums used by the GlobalNav 12 is in the back of this manual. PCF (Position Correction Factor) Another method used to make your display match a chart or map is called “PCF”...
GlobalNav 12 and the one on our chart. After you’ve entered the latitude/longitude correction, press the ENT key to accept it. The GlobalNav 12 erases the PCF entry screen and returns to the navigation or mapping screens with the correc- tion factor applied.
Finally, press the left arrow key. ALARMS The GlobalNav 12 has several alarms. You can set an arrival alarm to flash a warning message when you cross a preset distance from a way- point. For example, if you have the arrival alarm set to .1 mile, then the alarm will flash a message when you come within .1 mile of the recalled...
Arrival Alarm - If you set the arrival alarm’s distance to a small number, and you run a route (see the routes section), the GlobalNav 12 may not show navigation data to the next waypoint, once you arrive at the first one, since you may not be able to come close enough to the first waypoint to trip the arrival alarm.
“WPT#” label until the desired starting waypoint number appears. Now highlight the “Start At” label and press the right arrow key. The GlobalNav 12 returns to the Simulator Setup menu using the way- point you specified as the starting waypoint.
to change the track. Press the EXIT key to erase these menus. When you’re finished changing the track and speed, press the EXIT key to erase the menus. To turn the simulator off, press the MENU key, then move the black box to the “Simulator Setup” label. Fi- nally, press the left arrow key.
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DATUMS WGS 84 ... WGS 1984 DEFAULT Default ADINDAN ... Adindan MEAN Mean for Ethiopia, Sudan ADINDAN ... Adindan BURKINA Burkina Faso FASO ADINDAN ... Adindan CAMEROON Cameroon ADINDAN ... Adindan ETHIOPIA Ethiopia ADINDAN ... Adindan MALI Mali ADINDAN ... Adindan SENEGAL Senegal...
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CARTHAGE ... Carthage - Tunisia TUNISIA CH-1903 ... Switzerland CHATHAM ... Chatham Island Astro 1971 ISLAND ASTRO New Zealand (Chatham Island) NEW ZEALAND CHUA ASTRO ... Chua Astro PARAGUAY Paraguay CORREGO ... Corrego Alegre ALEGRE Brazil BRAZIL DABOLA ... Dabola GUINEA Guinea DJAKARTA ...
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IRELAND ... Ireland 1965 1965 Ireland ISTS 061 ... ISTS 061 Astro 1968 ASTRO 1968 South Georgia Islands S GEORGIA ISTS 073 ... ISTS 073 Astro 1969 ASTRO 1969 Diego Garcia DIEGO GARCIA JOHNSTON ... Johnston Island 1961 ISLAND Johnston Island 1961 KANDAWALA ...
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N AMERICAN ... North American 1927 1927 CANAL Canal Zone ZONE N AMERICAN ... North American 1927 1927 CUBA Cuba N AMERICAN ... North American 1927 1927 Greenland (Hayes Peninsula) GREENLAND N AMERICAN ... North American 1927 1927 MEXICO Mexico N AMERICAN ...
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RT 90 ... Sweden SANTO (DOS) ... Santo (DOS) ’65 ESPIRITO 1965 Espirito Santo Island SANTO ISLAND SAO BRAZ ... Sao Braz AZORES Azores (Sao Miguel, Santa Maria Islands) SAPPER HILL ... Sapper Hill 1943 1943 EAST East Falkland Island FALKLND ISLE SCHWARZECK ...
LOWRANCE ELECTRONICS, INC. FULL ONE-YEAR WARRANTY “We", “our”, or “us” refers to LOWRANCE ELECTRONICS, the manufacturer of this prod- uct. “You” or “your” refers to the first person who purchases this product as a consumer item for personal, family, or household use. We warrant this product against defects or malfunctions in materials and workmanship, and against failure to conform to this product’s written specifications, all for one year (1) from the date of original purchase by you.
How to Obtain Service (Canadian Customers Only) We back your investment in quality products with quick, expert service and genuine Lowrance replacement parts. If you need service or repairs, contact the Lowrance Factory Customer Service Department at the toll-free number listed below. A techni- cian may be able to solve the problem and save you the inconvenience of returning your unit.
How to Obtain Service - U.S.A. Only We back your investment in quality products with quick, expert service and genuine Lowrance and you have questions, please contact the Factory Customer Service Department using our toll-free number listed below. You must send the unit to the factory for warranty service or repair.
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