52 GPSMAP 620 and GPSMAP 640 Owner’s ManualMarine Mode: Advanced ConfigurationConfiguring the Active Track OptionsFrom the Home screen, touch information > User Data > tracks> Active track options.Record Mode—select off, Fill, or Wrap.• off—does not record a track log.• Fill—records a track log until the track memory is full.• Wrap—continuously records the track log, replacing the oldesttrack data with new data.interval—define the frequency at which the track is recorded.Recording more-frequent plots is more accurate, but fills the tracklog faster.• interval—set whether the interval is determined by distance,time, or resolution. (Touch Change to set the quantity.)◦ Distance—record the track based on a distance betweenpoints.◦ time—record the track based on a time interval.◦ Resolution—record the track based on a variance fromyour course. This setting is recommended for the mostefficient use of memory. The distance value (Change) isthe maximum error allowed from the true course beforerecording a track point.• Change—set the value of the interval.track Color—set the color of the track.Configuring the Numbers ScreenFrom the Home screen, touch Dashboard > Numbers > Menu >Configure.1. Select the number of data fields you want to show onthe Numbers screen. The Numbers screen appears withchangeable data fields.2. Touch the data field you want to change.3. Touch the data type you want to appear in the selected datafield.4. Repeat steps 3 and 4 until all the data fields contain theinformation you want.5. Touch Done.
