JRC JMA-3300 Series, Instruction Manual, Page: 57 / 298

Chapter 2 OPERATIONS
2.6 RAIN/SNOW CLUTTER SUPPRESSION
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2.6
RAIN/SNOW CLUTTER SUPPRESSION
This function suppresses rain/snow clutter returns.
CAUTION
When using the sea clutter suppression function, never set the
suppression level too high canceling out all image noises from the
rain or snow at close range. Detection of not only echoes from the
rain or snow but also targets such as other ships or dangerous
objects will become inhibited.
When using the sea clutter suppression function, make sure to
choose the most appropriate image noise suppression level.
„
Manual Rain/Snow Clutter Suppression Function
Adjust the rain/snow clutter returns on the display unit to achieve better observation state.
1
Turn the [RAIN] control.
Turn the [RAIN] control clockwise to suppress rain/snow clutter returns.
Turn the [RAIN] control counterclockwise to intensify rain/snow clutter returns.
The rain/snow clutter suppression adjustment screen appears when turning the [RAIN]
control.
Rain/snow clutter suppression can be adjusted between 0 and 100.
When turning the [RAIN] control, the rain/snow clutter control indication is stretched
or shrunk.