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(d) Multiple echo
Multiple echoes are developed by multiple reflections caused by a building or large vessels
that has large vertical surfaces. These echoes are spaced at an equal interval, with the one
that is closest to the own ship being the true echo.
(e) Radar
interference
If there is a radar that uses the same frequency as that of the own ship near the own ship,
interferences caused by that radar appear on the PPI screen. These interferences appear as
clusters of spots of varying patterns. Since they do not occur at the same location with time,
they can easily be distinguished from true echoes.
Radar interferences can be reduced or eliminated by choosing "ON" from "FUNCTION"-"IR".
[Examples of radar interferences]
Содержание JMA-5104
Страница 1: ...JMA 5104 5106 5110 MARINE RADAR EQUIPMENT INSTRUCTION MANUAL ...
Страница 14: ...IX EQUIPMENT APPEARANCE Scanner Unit Type NKE 2042 2 feet Scanner Unit Type NKE 2062 4 feet ...
Страница 15: ...X Scanner Unit Type NKE 2102 6 feet Processing Unit Type NDC 1260 ...
Страница 16: ...XI Display Unit Type NWZ 146 Landscape and Keyboard Unit NCE 7640 ...
Страница 17: ...XII Display Unit Type NWZ 146 Portrait and Keyboard Unit NCE 7640 ...
Страница 27: ......
Страница 31: ...4 1 4 Configuration Fig 1 1 OUTLINE DRAWING OF SCANNER UNIT NKE 2042 ...
Страница 32: ...5 Fig 1 2 OUTLINE DRAWING OF SCANNER UNIT NKE 2062 ...
Страница 33: ...6 Fig 1 3 OUTLINE DRAWING OF SCANNER UNIT NKE 2102 ...
Страница 34: ...7 Fig 1 4 OUTLINE DRAWING OF PROCESSING UNIT NDC 1260 ...
Страница 35: ...8 Fig 1 5 OUTLINE DRAWING OF KEYBOARD UNIT NCE 7640 ...
Страница 36: ...9 Fig 1 6 OUTLINE DRAWING OF DISPLAY UNIT NWZ 146 LANDSCAPE ...
Страница 37: ...10 Fig 1 7 OUTLINE DRAWING OF DISPLAY UNIT NWZ 146 PORTRAIT ...
Страница 142: ...115 9 2 3 Connection of cables to be assembled 1 Radome scanner unit NKE 2042 ...
Страница 144: ...117 2 Rotary scanner unit NKE 2062 NKE 2102 ...
Страница 145: ...118 ...
Страница 159: ...132 Method of assembling and connecting P3 LTWD06BFFA L180 and P5 LTWD08BFFA L180 that are attached ...
Страница 232: ... Fig 107 INTERNAL CONNECTION OF SCANNER UNIT NKE 2042 ...
Страница 233: ... Fig 108 INTERNAL CONNECTION OF SCANNER UNIT NKE 2062 ...
Страница 235: ... Fig 110 CIRCUIT DRAWING OF MODULATOR UNIT CME 322 ...
Страница 236: ... Fig 111 CIRCUIT DRAWING OF MODULATOR UNIT CME 323 ...
Страница 240: ... Fig 115 INTERNAL CONNECTION OF DISPLAY UNIT NCD 4310 ...
Страница 241: ... Fig 116 CIRCUIT DRAWING OF POWER SUPPLY UNIT CBD 1638 ...