6. RADAR
6-20
The figure below shows an actual radar image with the target analyzer activated.
How to activate or deactivate the target analyzer
Turn [Target Analyzer] on or off from the RotoKey menu or the pop-up menu.
How to emphasize rain clutter or target echoes
You can emphasize rain clutter or target echoes when the target analyzer is active.
Open the [Radar] menu, then set [Target Analyzer Mode] to [Rain] or [Target] as ap-
propriate. For [Rain], rain clutter is shown in blue color.
6.26 RezBoost
™
The azimuth resolution of the radar echoes can be switched in the range of 1-2 times.
Four settings are available, [Standard], [Enhanced1], [Enhanced2], or [Enhanced3].
Select [Enhanced3] for better echo resolution.
RezBoost
™
is available with the DRS4D-NXT radar sensor.
1. Select [Radar Filters] from the RotoKey menu.
2. Select [RezBoost].
3. Use the RotoKey
™
to select desired setting.
6.27 Bird Mode
The Bird mode sets up the radar for optimal detection of a flock of birds, which can
indicate the presence of schools of fish. Automatic adjustment of gain, sea clutter and
rain clutter is suspended, and the equipment optimally adjusts those items according
the bird mode setting.
The radar settings are automatically adjusted to detect birds on the sea surface. Gain,
sea clutter and rain clutter are automatically adjusted to distinguish birds from noise,
to help you locate schools of fish more easily. Additionally the bird mode can be used
to detect distant rain clouds.
The use of echo trail and echo average functions together with the bird mode make it
easier to distinguish bird echoes from other echoes. With echo average, echoes from
Other than approaching
target, rain clutter
(green)
Rain clutter
(blue)
pproaching target
(red)
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