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 configured for use in one radar mode is applied to every other radar mode and
to the Radar Overlay.
1. From the Home screen, select
Radar
>
Radar Setup
>
Front of Boat
.
2. Select and hold
Up
or
Down
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
Charts
>
Radar overlay
>
Menu
>
Waypoints & Tracks
>
Tracks
>
on
.
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
Charts
>
Radar overlay
>
Menu
>
Waypoints & Tracks
>
Waypoint
Display
.
2. Select a waypoint.
3. Complete an action:
• Select
Label
to identify waypoints using labels.
• Select
Comment
to show comments as waypoint labels.
• Select
Symbol
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 configure how other vessels appear on the Radar Overlay. The display range setting configured for the
Radar Overlay is applied only to the Radar Overlay. The details and projected heading settings configured for
the Radar Overlay are also applied to all radar modes.
1. From the Home screen, select
Charts
>
Radar overlay
>
Menu
>
other Vessels
>
AIS Display Setup
.
2. Complete an action:
• Select
AIS Display Range
to indicate the distance from your location in which AIS vessels appear, and
select a distance.
• Select
Details
>
Show
to show details about AIS-activated vessels.
• Select
Proj. Heading
to set the projected heading time for AIS-activated vessels, and select
Done
.
• Select
Trails
to show the tracks of AIS vessels, and select the length of the track that appears using a
trail.