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6. RADAR
6-4
6.5 How to Reduce the Rain Clutter
When your ship is in or near rain or snow, the reflections from rain or snow appear on
the screen. These reflections have the name “rain clutter”. When the rain clutter is
strong, targets in or near the rain clutter are hidden in the clutter. Reflections from the
rain clutter are easily identified from true targets by their wool-like appearance.
The rain control breaks the continuous display of rain or snow reflections into a ran-
dom pattern. The rain control also helps to reduce the target clutter in good weather
in busy harbors. When the rain clutter hides targets, adjust the rain control (automatic
or manual) to reduce the clutter. After the rain clutter is gone, turn off the rain control
to prevent the loss of targets.
Like with gain, rain clutter can be adjusted from the pop-up menu or data area. See
the procedures in section 6.3.
6.6 Range Scale
The range setting controls the size of the area (in nautical miles, kilometers or statute
miles) that appears on your screen. The range appears at the bottom right-hand cor-
ner of the screen.
How to zoom in or out the range scale
The range scale can be selected two ways, as shown below. The slider bar can be
shown or hidden with [Show Scale Slider] in the [Settings] - [Radar] menu.
Zoom in
Zoom out
Method 1: Pinch screen
Method 2: Drag slider
(or tap bar or +, - icons)
3
NM
Zoom in
Zoom in
Zoom out
Zoom out