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3.4
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[Page 1] 4. AUTO STC/FTC
• Detects undesired clutter such as rain/snow clutter and sea clutter and performs suppression processing
automatically.
• Performs suppression processing automatically according to the condition even if the sea condition
or weather condition changes.
• However, this is not fully automated processing and the user must adjust the degree of remaining
undesired clutter.
• Use the [SEA CLUTTER] control for adjustment of the degree of remaining sea clutter.
• Use the [RAIN CLUTTER] control for adjustment of the remaining rain/snow clutter.
• In an area of a low undesired clutter density, undesired clutter may be judged as targets and remain.
Therefore, when using the automatic clutter suppression function, use "PROC1" or "PROC2".
• The operation features of the automatic clutter suppression function are as follows.
OFF : The automatic clutter suppression function is not used.
Use this mode for a bay with low rain/snow clutter or sea clutter or a calm day.
AUTO STC : Detects a sea clutter intensity automatically and performs the optimum sea clutter
suppression processing.
The optimum processing effect can be achieved even if the sea clutter intensity
varies according to the wind direction.
Since there is no signal attenuation in the area without sea clutter, a land such as an
island in which the far range sensitivity is enhanced can be displayed naturally.
However, since this mode recognizes rain clouds in areas outside of the sea clutter
range, there is no rain cloud suppression effect.
AUTO FTC : Automatically detects the rain/snow clutter intensity and performs rain/snow clutter
suppression processing in addition to automatic STC.
When rain clouds exist sparsely, this mode performs rain/snow clutter suppression
processing for the rain cloud area only.
However, since this mode recognizes the land as a rain cloud also, the image of the
land becomes weak.
Page 1
1. MODE (Select the name to be used)
2. PROCESS OFF PROC1 PROC2 PROC3
3. IR OFF IR1 IR2 IR3
4. AUTO STC/FTC OFF AUTO STC AUTO FTC
5. TGT EXPANSION OFF EXP1 EXP2 EXP3
6. SAVE PRESENT STATE
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