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[III] Coping with sea clutter and rain and snow clutter
When the weather is bad and the ocean is rough, the use of an S band radar is effective because the radar is
not influenced by sea clutter so much and attenuation due to rain drops is small. When an X band radar is
used, reducing the pulse width will reduce the influence by spurious waves, and also the spurious wave
rejection function effectively works; therefore, the use of short pulse is effective when the weather is bad.
By using image processing functions PROCl 1 to 3, it is expected that spurious waves are further
suppressed. Since optimal settings for those items can be automatically made by using the function mode,
it is recommended that STORM or RAIN be used by selecting the function mode when the weather is bad.
For details of the function mode, see Section 3.10 “USE FUNCTION SWITCH [FUNC]”.
However, these functions may make some targets invisible, particularly targets with higher speeds.
Summary of Contents for JMA-5212-4
Page 2: ......
Page 18: ... xii NKE 2103 6 6HS Scanner Unit NKE 2254 7 9 6HS Scanner Unit Warning Label Warning Label ...
Page 19: ... xiii ...
Page 38: ... xxxii ...
Page 45: ...1 4 EXTERIOR DRAWINGS 1 6 1 y Fig 1 1 Exterior Drawing of Scanner Unit Type NKE 2103 4 ...
Page 46: ...1 7 Fig 1 2 Exterior Drawing of Scanner Unit Type NKE 2103 6 ...
Page 47: ...1 4 EXTERIOR DRAWINGS 1 8 1 y Fig 1 3 Exterior Drawing of Scanner Unit Type NKE 2254 7 ...
Page 48: ...1 9 Fig 1 4 Exterior Drawing of Scanner Unit Type NKE 2254 9 ...
Page 49: ...1 4 EXTERIOR DRAWINGS 1 10 1 y Fig 1 5 Exterior Drawing of Monitor Unit Type NWZ 164 ...
Page 50: ...1 11 Fig 1 6 Exterior Drawing of Processor Unit Type NDC 1460 ...
Page 51: ...1 4 EXTERIOR DRAWINGS 1 12 1 y Fig 1 7 Exterior Drawing of Keyboard Unit Type NCE 7699A ...
Page 52: ...1 13 Fig 1 8 Exterior Drawing of NSK Unit Type NCT 4106A ...
Page 56: ...1 17 ...
Page 58: ...2 1 2 1 EXAMPLE OF DISPLAY ...
Page 78: ...2 21 ...
Page 234: ...3 155 ...
Page 316: ...5 75 ...
Page 332: ...6 15 ...
Page 358: ...7 25 Exit 1 Press RADAR MENU key The Main Menu will reappear ...
Page 434: ...8 39 ...
Page 452: ...10 5 ...
Page 477: ...Figure 8 NKE 2254 Interconnection Diagram of Scanner Unit ...
Page 493: ......