User manual GARMIN GPS 50

[. . . ] GPS 50 PERSONAL NAVIGATORTM OWNER'S MANUAL GARMIN International, Inc. GPS 50 Personal NavigatorTM OWNER'S MANUAL (for Software Version 2. 0 or above) © 1991-1992 GARMIN, 9875 Widmer Road, Lenexa, KS 66215 Printed in Taiwan. No part of this manual may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying and recording, for any purpose without the express written permission of GARMIN. GARMIN reserves the right to change or improve their products and to make changes in the content without obligation to notify any person or organization of such changes or improvements. October, 1992 190-00015-01 Rev. B PREFACE GARMIN thanks you for selecting our high performance, full featured Personal NavigatorTM. [. . . ] · With the cursor under the heading mode select field, press MORE until " TRUE HDG"is displayed. · With the cursor under the heading mode select field, press MORE until " AUTO MAG"is displayed. The computed magnetic variation at the present position will be displayed. · With the cursor under the heading mode select field, press MORE until " USER MAG?"is displayed. · With the cursor under the magnetic variation field, enter the desired value. (If the direction [E, W] is incorrect, press CLR until the correct direction is displayed, then enter the numeric value. ) 4. 9 FILTER SETTINGS Position/ Velocity Select Filter Response Time Select FILTER SETTINGS PAGE The GPS 50 allows you to choose the filter response time for position and velocity outputs. This may aid you in smoothing the data in rough seas or for sail boating. · With the cursor under the position/velocity select filter, press MORE to select " VEL"or " POSN" Press ENT. · Press MORE to select FAST (3 seconds), MED (20 seconds), SLOW (120 seconds), or AUTO. Typical users will want to choose the " Auto"setting for optimal position and velocity filtering. This will allow the GPS 50 to respond quickly to changes in heading and speed while providing smooth data during cruise. 4-6 4. 10 OUTPUTS Output Select OUTPUT PAGE You may select the output data format for your interface requirements. " NMEA 0180" " , NMEA 0182" (also known as NMEA 0180 Complex) and " NMEA 0183"are available for interfacing with other marine electronic devices (see Appendix C for more information on NMEA interfaces). Alternatively, you may select " NO OUTPUT" if you do not use the interface (this will help extend battery life). 4. 11 MAP DATUM Map Datum Select MAP DATUM PAGE The GPS 50 calculates your position based on the WGS-84 map datum. If your charts (or other electronic devices) are created using a different datum, you must set the GPS 50 map datum for consistency (a position in the WGS84 datum could differ by 1000 feet or more from one calculated using another datum). The GPS 50 provides 101 standard map datums and allows you to enter your own, if necessary. Check the datum in the legend of your chart and the manuals of your other navigation equipment interfaced to the GPS 50 and set the map datum accordingly. 4-7 To select a standard map datum. . . · With the cursor under the map datum select field, press MORE or the arrow keys until the desired map datum is displayed. To select a user map datum. . . User Map Datum Latitude Correction Longitude Correction · With the cursor under the map datum select field, press MORE until " USER?"is displayed. · Enter the latitude and longitude corrections in the appropriate fields. (Remember, if the direction [E, W, N, S] is incorrect, press CLR until the correct direction is displayed, then enter the numeric value. ) 4-8 CHAPTER 5 NAVIGATION PLANNING The GPS 50 provides a menu page under the NAV key which allows you to select from a menu of time and planning functions. You may cycle through the Navigation Pages by pressing the NAV key repeatedly until the desired page is displayed. CDI Page Position Page Navigation Menu 5. 1 NAVIGATION MENU Menu Select NAVIGATION MENU The Navigation Menu displays the " NAV MENU"title to let you access the underlying functions. [. . . ] · Apply enough force to the release tab to allow the unit to pass as shown above. · Pull the bottom of the GPS 50 out, then rotate the top downward and out. · Tighten the lever. C-8 C. 5 BATTERY PACK OPERATION The GPS 50 is supplied with a sealed, 4-cell alkaline battery pack. The battery pack must be removed from the unit in order to replace the cells. [. . . ]