Compass Page OptionsUse the options menu on the Compass Page to customize theCompass Page. For definitions of data field options, see to page 132.Press MENU to open the Compass Page options menu.Set Up Page Layout—select the page layout.Show Course Pointer/Show Compass—toggles between showingthe course pointer, which shows how far off you are from yourcourse and how to get back on course, or shows the compass arrow.The course pointer is also referred to as a CDI or course deviationindictor.Show (Hide) Bug Indicator—shows the course to steer bugindicator (the purple tick mark on the compass ring).Change Data Fields—changes on-screen data fields.Using the Marine TimerThe Marine Timer, specifically designed for sail boat racing, allowsyou to easily count up or down by specified time increments. Asis common in sail boat racing, there is often a 5-minute warningcountdown, followed by a 4-minute preparation countdown, andfinally a 1-minute final countdown. Then during the race, marinersmight want to count up to keep track of their time.You can use your GPSMAP 378/478 to perform each of thesedifferent countdowns.To open the Marine Timer:1. Press MENU on the Compass Page.2. Highlight Set Up Page Layout, and press ENTER.3. Highlight 2 Columns With Timer, and press ENTER. TheMarine Timer appears in the lower-right corner.4 GPSMAP 378/478 Owner’s ManualMArIne Mode PAges > coMPAss PAge
