3-11
CAUTION
3.2.6 Suppress Rain/Snow Clutter [RAIN]
※ Also see to the section “3.2.8 Adjust to the Best Image”
Using the manual rain / snow clutter suppression mode
Procedures 1 Adjust the rain / snow clutter returns of the display by turning the
[AUTO-RAIN] dial until targets can be easily observed.
Turning [RAIN] dial clockwise suppresses rain / snow clutter returns.
Turning [RAIN] dial counterclockwise intensifies rain / snow clutter returns.
When the [RAIN] dial is turned clockwise, the rain / snow clutter suppression function
suppresses rain / snow clutter returns and gets targets hidden by rain / snow clutter returns to
appear of the display. However, be careful that excessive suppression may cause small targets
to be overlooked. Since the rain / snow clutter suppression function also has the effect of
suppressing sea clutter, the suppression efficiency improves when the [RAIN] dial is used with
the [SEA] dial. In general, turn the [RAIN] dial fully to the left.
When using the [AUTO RAIN] function, never set the
suppression level too high canceling out all image noises from
the rain or snow at the 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 [AUTO RAIN] function, make sure to choose the
most appropriate image noise suppression level.
When the optimum setting level is lost, recommend to
readjust the initial setting level once.
The initial setting level is indicated on the bar-graph
with light blue on lower left of the display.
The initial setting level is changed by the each function
mode. See to section “3.9 USE FUNCTION KEY [USER]”
for details of the function modes
Present level
Initial setting level
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