6. RADAR
6-24
To select the bird mode setting, open the Layers menu, tap [Bird Mode], then select
[Calm], [Moderate], or [Rough].
[Calm]: Suitable in calm conditions where sea clutter is weak. Applies low sea clutter
reduction to show weak bird echoes. When sea clutter is strong, bird echoes may be
hidden inside the sea clutter.
[Moderate]: Suitable where sea clutter is moderate. Applies medium sea clutter re-
duction.
[Rough]: Suitable in rough weather conditions where sea clutter is strong. Applies
high sea clutter reduction. Weak bird echoes may be suppressed in this setting.
To turn off the bird mode, select [Off]. When the bird mode is active, the bird mode
icon appears to the right of the TX/STBY switch, as shown below.
Usage precautions
• Do not use the Bird mode in rough weather.
• Do not use the Bird mode during a voyage. The Bird mode settings are not suitable
in a voyage.
• ARPA performance may be reduced when the Bird mode is active.
• Radar Adjust (Gain, Sea, Rain) and Auto Sea Mode cannot be adjusted when the
Bird mode is active.
• Schools of fish that attract birds tend to dive suddenly, which may result in unstable
or disappearing echoes.
6.23 Target Analyzer
™
The Target Analyzer
™
analyzes echoes and displays targets in different colors to help
you distinguish targets that are moving and approaching own ship. Use this function
to distinguish targets from heavy rain or snow.
Note 1: Requires one of the following radar sensors and GPS position data.
Note 2: [Radar Adjust] (Gain, Sea, Rain) and [Auto Sea Mode] cannot be adjusted
when the Target Analyzer
™
is active.
Note 3: The Target Analyzer
™
works only against moving targets. Stationary targets,
such as a buoy, are not identified as an approaching target.
Note 4: When the radial component* of target velocity (see below for description) is
50 kn or higher, the target may be painted in a wrong color. For example, an approach-
ing target whose speed is 50 kn or higher should be painted in red, but is painted in
green.
DRS2D-NXT DRS4D-NXT
• DRS12A-NXT • DRS6A-NXT
• DRS25A-NX
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