Garmin GPSMAP 740 - Radar Overlay Display Appearance

GPSMAP 700 Series Owner’s Manual 69
Radar
Front-of-boat Offset
The front-of-boat offset compensates for the physical location of the radar scanner on a boat, if the radar
scanner does not align with the bow-stern axis.
Measuring the Potential Front-of-boat Offset
1. Using a magnetic compass, take an optical bearing of a stationary target located within viewable range.
2. Measure the target bearing on the radar.
3. If the bearing deviation is more than +/- 1°, set the front-of-boat offset.
Setting the Front-of-boat Offset
Before you can set the front-of-boat offset, you must measure the potential front-of-boat offset (see previous
procedure).
The front-of-boat offset setting congured for use in one radar mode is applied to every other radar mode and
to the Radar Overlay.
1. From the Home screen, select  >  > .
2. Select and hold  or  to adjust the offset.
Radar Overlay Display Appearance
Showing Tracks on the Radar Overlay
You can set whether vessel tracks appear on the Radar Overlay.
From the Home screen, select  >  >  >  >  > .
Selecting a Waypoint Label Type
You can select the type of labels shown with waypoints on the Radar Overlay.
1. From the Home screen, select  >  >  >  > 
.
2. Select a waypoint.
3. Complete an action:
• Select  to identify waypoints using labels.
• Select  to show comments as waypoint labels.
• Select  to identify waypoints using symbols.
Showing Other Vessels on the Radar Overlay
AIS requires the use of an external AIS device and active transponder signals from other vessels.
You can congure how other vessels appear on the Radar Overlay. The display range setting congured for the
Radar Overlay is applied only to the Radar Overlay. The details and projected heading settings congured for
the Radar Overlay are also applied to all radar modes.
1. From the Home screen, select  >  >  >  > .
2. Complete an action:
• Select  to indicate the distance from your location in which AIS vessels appear, and
select a distance.
• Select  >  to show details about AIS-activated vessels.
• Select  to set the projected heading time for AIS-activated vessels, and select .
• Select  to show the tracks of AIS vessels, and select the length of the track that appears using a
trail.