Garmin GPS 40 Owner's Manual & Reference

Also see for echomap 40 series: Pilot's guide Installation instructions Owner's manual Owner's manual Declaration of conformity

Contents

Garmin GPS 40 Owner's Manual & Reference Manual pdf 51 page image

Navigation SetupThe navigation setup page is used to select units ofmeasurement for position format, map datum, CDI scale,and distance, speed and heading information.Position FormatsThe default position setting for the GPS 40 is latitudeand longitude in degrees and minutes (hdddºmm.mmm’).You may also select degrees, minutes and seconds(hdddºmm’ss.s’’); degrees only (hddd.dddddº); UTM/UPScoordinates; or British, German, Irish, Maidenhead,Swedish, Swiss or Taiwan grid formats.To select a position format:1. Highlight the ‘POSITIONFRMT’ field and press E.2. Use the U and D keys to select the desired setting.Confirm the setting by pressing E.Map DatumsThe map datum field is located just below the positionformat field, and comes with a WGS 84 default setting.Although 104 total map datums are available for use (seethe map datum listing in appendix B), you should onlychange the datum if you are using maps or charts that spec-ify a different datum than WGS 84.To select a map datum:1. Highlight the ‘MAPDATUM’ field and press E.2. Use the U and D keys to toggle through and selectthe desired setting. Confirm the setting by pressing E.CDI Scale SettingsThe course deviation indicator (CDI) scale definitionfield lets you select the +/- range of the CDI bar scale. Threescales are available: +/- 0.25, 1.25 and 5.0 miles or kilome-ters, with 0.25 being the default setting.To enter a CDI scale setting:1. Highlight the ‘CDISCALE’ field and press E.2. Use the U and D keys to select the desired setting.3. Press the E key to confirm the selection.ReferenceNavigationSetup47NAV Setup PageThe position format may beset to display your positionin various lat/lon or gridformats.Map DatumThe GPS 40’s default mapdatum is WGS 84.WARNING: Using thewrong map datum can seri-ously affect the accuracy ofyour GPS receiver.