Garmin GPSMAP 4008 Owner's Manual

Also see for GPSMAP 4008 - Marine GPS Receiver: Technical reference Important safety information Owner's manual Supplement Owner's manual

Contents

Garmin GPSMAP 4008 Owner's Manual Manual pdf 70 page image

66 GPSMAP® 4000/5000 Series Owner’s ManualRadarDual Range ModeDual Range mode provides a side-by-side view of both short-range and long-range radar data with a GMRxHD radar. The two radar views provided in this mode can be especially useful at night or in inclementweather.Short-range radar data appears on the left side ➊ of the dual-range screen, and the signal range cannot exceed3 nm (4 km). Long-range radar data appears on the right side ➋ of the dual-range screen, and the signal rangemust be greater than the signal range shown on the short-range screen. The short-range screen is comparable toHarbor mode, and the long-range screen is comparable to Offshore mode.Dual Range Mode➊ ➋Note: If you switch from Sentry mode to Dual Range mode, the radar switches to full-time transmission anddisables any guard zones. If you switch from Harbor mode or Offshore mode to Dual Range mode, all MARPAtargets are cancelled, and you cannot acquire MARPA targets until you exit Dual Range mode.Showing Dual Range ModeFrom the Home screen, select Radar > Dual Range.Sentry ModeSentry mode allows you to put the radar into timed-transmit mode, in which you can configure a radar transmitand standby cycle to conserve power. You can also enable a guard zone in this mode, which identifies a safezone around your boat and sounds an alarm when a radar object enters this zone. Sentry mode works with allGarmin GMR model radars.Showing Sentry ModeNote: If you switch to Sentry mode and MARPA is disabled in Sentry mode, all MARPA targets arecancelled, and you cannot acquire MARPA targets until you exit Sentry mode. If MARPA is enabled in Sentrymode, MARPA targets are not cancelled.From the Home screen, select Radar > Sentry.Enabling MARPA in Sentry ModeFrom the Home screen, select Radar > Sentry > Menu > Sentry Setup > MARPA > on.Enabling Timed TransmitFrom the Home screen, select Radar > Sentry > Menu > Sentry Setup > timed Xmit > on.