JRC JMA-9133-SA Instruction Manual page 234

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JMA-9100 Instruction Manual 3.BASIC OPERATION
page 1-[2] IR (Radar interference rejection)
• Same function as IR Setting described in Section 3.4.1 "Interference Rejection
(IR)".
page 1-[3] Process (Video process)
• Same function as PROCESS Setting described in Section 3.4.4 "Use Video
Processing (PROC)"
page 1-[4] Target Enhance
• Same function as TARGET ENHANCE Setting described in Section 3.4.3
"Target Enhance (ENH)".
page 1-[5] Auto STC/FTC (Auto Sea/Rain)
• Detects unwanted waves such as rain/snow clutter and sea clutter and
automatically suppresses them.
• When the sea state or weather changes, this function automatically performs
suppression processing in accordance with the situation.
• Suppression processing is not full automatic, and requires the operator to adjust
the afterimages of unwanted waves.
• To adjust the afterimage of sea clutter, use the [SEA] dial.
• To adjust the afterimage of rain/snow clutter, use the [RAIN] dial.
• In areas where the density of unwanted waves is low, unwanted waves may
remain being judged as targets. Thus, use the automatic clutter suppression
mode together with the video process mode.
• Characteristics of the automatic clutter suppression function:
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3.9 USE FUNCTION KEY [USER]
Off : Disables the automatic clutter suppression function. Select off
when rain / snow clutter and sea clutter are not strong or when the
ship is in a bay.
: Automatically detects the strength of sea clutter, and performs the
AUTO Sea
most suitable sea clutter suppression processing.
Even when the strength of sea clutter varies depending on the wind
direction, AUTO Sea performs the most suitable suppression
processing. Land like islands can be displayed naturally.
Since rain clouds outside sea clutter areas are recognized as land,
there is no effect of suppressing rain / snow clutter.
: Along with AUTO Sea, AUTO Rain automatically detects the
AUTO Sea/Rain
strength of rain / snow clutter, and performs the most suitable rain /
snow clutter suppression processing.
When rain clouds are scattered about, AUTO Rain performs rain /
snow clutter suppression processing for only the rain-cloud areas.
Since land is recognized as rain clouds, land videos become
obscure.
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