Garmin GPSMAP 172 Owner's Manual

Also see for GPSMAP 172: Installation instructions Specifications Quick reference

Contents

Time Submenu Tab— displays the current time and date, allows you to adjust the 12 or 24-hourtime format, enter a time zone, and adjust for daylight savings to show correct local time.The following options are available:• Time Format – 12 hour, 24-hour (military) or UTC time (also called Greenwich Time).• Time Zone – choose your time zone to show correct local time or choose ‘Other’ and enter aUTC Offset. The UTC offset is how many hours you are ahead or behind the time line. See thetable on page 80 for time offsets.• Daylight Savings – choose from ‘Auto’, ‘On’, or ‘Off’ to adjust for daylight savings.Comm (Communications) Tab— lets you control the input/output format used when connectingyour GPSMAP 172/172C to external NMEA devices, a DGPS beacon receiver, a personal computer,another Garmin GPSMAP 172/172C, etc. If a DGPS receiver is used, WAAS capability is automaticallyturned to ‘Off’. The unit supports two input/output ports. See page 92 for more information on wiringand NMEA information. Individual Port settings are:Port 1:• Garmin Data Transfer – the proprietary format used to upload/download MapSource data,exchange waypoint, route, track, almanac, and proximity data with a PC or another GarminGPSMAP 172/172C. When you select ‘Garmin Data Transfer’, there are 11 Transfer Modesto choose from: Host, Request Almanac, Request Proximity, Request Routes, Request Tracks,Request Waypoints, Send Almanac, Send Proximity, Send Routes, Send Tracks and SendWaypoints.• NMEA In/NMEA Out – supports the input/output of standard NMEA 0183 data, DSC, andsonar NMEA input support for the DPT, MTW and VHW sentences.Main Menu: Time/Comm TabMain Menu—Time TabMain Menu—Comm TabData Transfer ProgressReference