Garmin GPSMAP 182 Owner's Manual

Also see for GPSMAP 182C: Owner's manual Declaration of conformity Declaration of conformity Specifications

Garmin GPSMAP 182 Owner's Manual Manual pdf 74 page image

64ReferenceMain Menu:Units Tab• Heading— lets you select the reference used in calculating heading information. You can select from‘Auto Mag Var’, ‘True’, ‘Grid’ and ‘User Mag Var’. ‘Auto Mag Var’ provides magnetic north headingreferences which are automatically determined from your current position. ‘True’ provides headingsbased upon a true north reference. ‘Grid’ provides headings based on a grid north reference (andis used in conjunction with the grid position formats described on page 63). ‘User Mag Var’ allowsyou to specify the magnetic variation at your current position and provides magnetic north headingreferences based upon the variation you enter.To enter a user defined magnetic variation:1. With the “Heading” field set to ‘User Mag Var’, highlight the heading reference field (immediatelyto the right) and press ENTER/MARK.2. Use the ARROW KEYPAD to enter the magnetic variation at your current position and pressENTER/MARK.• Distance, Speed and Elevation— lets you select the desired units of measure for distance, speed andelevation readouts in ‘Nautical’ (nm, kt, ft), ‘Nautical’ (nm, kt, m), ‘Statute’ (mi, mh, ft) or ‘Metric’(km, kh, m) terms.• Depth— lets you select the desired units of measure for depth in Feet (ft), Fathoms (fa) or Meters(m).• Temperature— lets you select the desired units of measure for temperature in Fahrenheit (°F) orCelsius (°C).Comm (Communications) Tab— lets you control the input/output format used when connecting yourGPSMAP 182/182C/232 to a GSD 20 Sonar Module, external NMEA devices, a DGPS beacon receiver, apersonal computer, another Garmin GPSMAP 182/182C/232, etc. Note: If a DGPS receiver is used, WAAScapability will automatically be turned to ‘Off’. See pg. 87 for wiring and NMEA version information. Theunit supports two input/output ports. Individual Port settings are:Port 1—• GARMIN Data Transfer— the proprietary format used to upload/download MapSource data, exchangewaypoint, route, track, almanac, and proximity data with a PC or another Garmin GPSMAP 182/182C/232. When you select ‘GARMIN Data Transfer’, there are 11 Transfer Modes to choose from: Host,Request Almanac, Request Proximity, Request Routes, Request Tracks, Request Waypoints, Send Almanac,Send Proximity, Send Routes, Send Tracks and Send Waypoints.,You may manually enter amagnetic variation.WARNING: If ‘User Mag Var’ is selected, you mustperiodically update the magnetic variation as yourposition changes. Using this setting, the unit will notautomatically calculate and update the magneticvariation at your present position. Failure to updatethis setting may result in substantial differencesbetween the information displayed on your unit andexternal references, such as a magnetic compass