JMA-2343/2344 - ProNav

More documents

Recommendations

Info

In order to obtain information on the L/L of the waypoint, one of the following devices need to be connected to the display and the waypoint set in such device. • GPS • LORAN C Information on position is input from either the CMPS or NAVRX terminals. 3.6.4 Obtaining information on distance to the waypoint In order to obtain information on distance to the waypoint, one of the following devices need to be connected to the display unit, and it is necessary that the waypoint set in the navigation device is displayed on screen. • GPS • LORAN C Information on distance is input from either the CMPS or NAVRX terminals. 206
4 How to Interpret the PPI Screen 4.1 Height of and the Distance to the Target The maximum distance to a target that can be observed with a radar depends not only on the power of the radar's transmitter, beam width of the scanner unit, and the receiver's sensitivity but also on height of a target, distance to a target and height of scanner unit line etc. This is because the radio wave emitted by a radar runs straight, undergoing no influence by the curvature of the earth surface. a1=2.23√h1 a2=2.23√h2 a1 + a2=2.23 (√h1 + √h2 ) a1, a2:Unit [Nautical miles] h1, h2:Unit [Meters] [Distance and Target] For example, when the scanner unit lies 3 meters above the sea level, the radar can detect and display an island with a height of 10 meters at a distance 10 NM away from the scanner unit position but cannot detect and display an island with a height of 5 meters at the same distance. This is theoretically true but does not always hold, depending on weather conditions. For a target located 10 NM away to be displayed on a radar, it theoretically needs to be 7.6 meters or higher. Any targets lower than 7.6 meters cannot be displayed on a radar. • The target may be unable to be observed when the height of a scanner unit or an target is low. Island not displayed on the screen 10 NM 10 NM h1(meters) Scanner unit height a1+a2(NM) Distance 207 h2(meters) Target height
Page 1:
JMA-2343/2344
Page 4 and 5:
Pictorial Indication ●Before Oper
Page 6 and 7:
●Cautions to be used during opera
Page 8 and 9:
──PRECAUTIONS BEFORE OPERATION
Page 10 and 11:
☆When pulse is beating but breath
Page 12 and 13:
機器外観 EQUIPMENT APPEARANC
Page 14 and 15:
Contents PREFACE ·········
Page 16 and 17:
3. Changing the interval between th
Page 18 and 19:
Chapter 5 Maintenance and Inspectio
Page 20 and 21:
9.9 Returning to the Initial Settin
Page 22 and 23:
Glossary of Radar Terms A/D ACQ A-S
Page 24 and 25:
1.3 Composition Composition of the
Page 26 and 27:
Fig. 1.2 OUTLINE DRAWING OF SCANNER
Page 28 and 29:
1.5 General System Diagram SCANNER
Page 30 and 31:
2 Names and Functions of Control Pa
Page 32 and 33:
2.1.3 Functions of the cross key Th
Page 34 and 35: 2.2 Explanation of Screen Readout P
Page 36 and 37: 2.3 Explanation of Functions within
Page 38 and 39: 2.3.2 Functions within the menu Whe
Page 40 and 41: RADAR SET-UP 1 Set the buzzer sound
Page 42 and 43: 3 Basic Operations 3.1 Flow of Oper
Page 44 and 45: 3.1.1 Turning the power ON and star
Page 46 and 47: 3.2 Monitoring Standby 3.2.1 Changi
Page 48 and 49: Range Range ring interval 3.3.5 Era
Page 50 and 51: 3.3.8 Eradicating radar interferenc
Page 52 and 53: 3.3.10 In case of high waves CAUTIO
Page 54 and 55: (b) Push the left or right side of
Page 56 and 57: 1. Using EBL • An EBL is a straig
Page 58 and 59: 3.3.14 Floating VRM and EBL Use the
Page 60 and 61: • Magnetic bearing display: This
Page 62 and 63: • True bearing display (north-up
Page 64 and 65: Displaying the cursor (a) Push the
Page 66 and 67: Before magnified After magnified 2.
Page 68 and 69: Location designated by the marker C
Page 70 and 71: Canceling center relocation (a) Pus
Page 72 and 73: 3.3.24 Locking a fixed target on th
Page 74 and 75: • The following is an example of
Page 76 and 77: (c) Move the marker using the cross
Page 78 and 79: 3.4 Other Convenient Functions 3.4.
Page 80 and 81: 3.4.4 Displaying the waypoint • I
Page 82 and 83: 3.5.2 In cases of abnormality durin
Page 86 and 87: 4.2 Returns from a Target The inten
Page 88 and 89: (d) Multiple echo Multiple echoes a
Page 90 and 91: 5 Maintenance and Inspection 5.1 Ge
Page 92 and 93: 5.4 Special Parts JMA-2343 Model Nu
Page 94 and 95: 5.6 Actions to Deal with Abnormalit
Page 96 and 97: 6 After-sales Service ★ When aski
Page 98 and 99: 7 Disposal 7.1 Equipment Disposal D
Page 100 and 101: 8.2 Scanner Unit (NKE-249/250) (1)
Page 102 and 103: 8.3 Display Unit (NCD-4170) (1) Dim
Page 104 and 105: (18) Menu ・FUNCTION ・DISPLAY
Page 106 and 107: 8.4 Rectifier Unit (NBA-797A) (1) D
Page 108 and 109: 9.2 Installing the Scanner Unit 9.2
Page 110 and 111: (2) Precautions to be observed when
Page 112 and 113: 234
Page 114 and 115: 9.3 Installing the Display Unit 9.3
Page 116 and 117: ※ The following should be used as
Page 118 and 119: 9.3.6 Connecting an electromagnetic
Page 120 and 121: 9.5 Cable Assemblies 9.5.1 Inter-un
Page 122 and 123: 9.6 After-installation Adjustments
Page 124 and 125: 9.7 Adjustment Procedures 9.7.1 Gen
Page 126 and 127: 3. Adjusting the tilt angle of the
Page 128 and 129: 9.8.1 Adjustment of the receiver
Page 130 and 131: 9.8.2 Adjusting the noise level Thi
Page 132 and 133: (i) Adjust the proximate perimeter
Page 134 and 135:
(d) Push the soft key 1 and select
Page 136 and 137:
(b) Select "INITIAL SETTING 2" in t
Page 138 and 139:
● Setting mode MANUAL : This oper
Page 140 and 141:
List of Geodetic Systems No. Name 0
Page 142 and 143:
9.9 Returning to the Initial Settin
Page 144 and 145:
9.10.2 Scanner unit WARNING When pe
Page 146:
9.10.3 Display unit Cleaning the Di
show all

JMA-2343/2344 - ProNav

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?