3 – 43
3.3
Attention
Attention
3.3.23
Using Electronic Plot (EPA)
The EPA is used for a radar without the ATA function.
It stores and displays the target course and speed in the form of vector.
Up to 10 ships (plot No. 0 to 9) can be specified.
It also calculates the CPA and TCPA and outputs an alarm.
The plotting memory is cleared when the power is turned off.
The previous plot is not displayed.
3.3.23.1 Plotting Target
A vector is displayed by plotting a target twice.
The plot moves according to the course and speed calculated from the two plotted positions.
The plot can be modified.
The plot No. is not displayed when the plot No. display function is turned off.
Procedures
1. Put the cross cursor mark on the target and press the
ACQ
switch to
start the first plotting.
2. Enter the plot No. using a numeric key (
0
to
9
).
3. Press the
ENT
key to complete the first plotting.
The acquisition symbol (
) and the plot No. are displayed at the plotting
position.
4. 30 seconds to 15 minutes after the first acquisition, put the cross cursor
mark at the position to which the target has been moved and start the
second plotting by following procedures 1 to 3 above. For the plot No.,
input the same one as the first plotting. After the second plotting is
completed, the symbol and plot No. displayed after the first plotting is
completed are cleared and a symbol (vector) and the plot No. are displayed
at the second plotting position.
5. The plot (symbol and plot No.) moves according to the fixed course and
speed calculated from the two plotting positions. In this status, the CPA
and TCPA at the moving position of the plot are calculated and an alarm
is output when the plot enters the alarm range.
Summary of Contents for JMA-7710-6
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Page 20: ...XVIII ...
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Page 30: ...1 7 1 4 Fig 1 2 Outline Drawing of Scanner Unit Type NKE 1056 6M MASS APPROX 41 O UNIT mm ...
Page 31: ...1 1 8 1 4 Fig 1 3 Outline Drawing of Scanner Unit Type NKE 1056 9M MASS APPROX 47 O UNIT mm ...
Page 34: ...1 11 1 5 Fig 1 5 General System Drawing of Radar Type JMA 7710 6 ...
Page 35: ...1 12 1 5 1 Fig 1 6 General System Drawing of Radar Type JMA 7725 6 ...
Page 36: ...1 13 1 5 Fig 1 7 General System Drawing of Radar Type JMA 7725 9 ...
Page 48: ...2 7 2 1 Screen Readouts 3 1 2 3 4 5 7 u i o y 1 0 q 2 t w e r 0 8 4 5 6 7 8 9 0 9 6 ...
Page 50: ...2 9 2 1 Screen Readouts with ATA 3 1 2 3 4 5 7 u i o y 1 0 q 2 t w e r 8 4 5 6 7 8 9 0 9 6 ...
Page 99: ...3 3 38 3 3 ...
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Page 217: ...7 7 1 Routine Maintenance 7 1 7 2 Maintenance of Each Unit 7 2 MAINTENANCE ...
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Page 277: ...9 AFTER SALES SERVICE ...
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Page 298: ...Appendix 2 Circuit Diagram of Radar Type JMA 7710 6 and JMA 7725 6 9 ...
Page 299: ...Appendix 3 Terminal Board Connection Diagram of Radar Type JMA 7710 6 ...
Page 300: ...Appendix 4 Terminal Board Connection Diagram of Radar Type JMA 7725 6 9 ...
Page 301: ...Appendix 5 Primary Power Supply System Diagram of Radar Type JMA 7710 6 and JMA 7725 6 9 ...
Page 302: ...Appendix 6 Internal Connection Diagram of Scanner Unit Type NKE 1055 ...
Page 303: ...Appendix 7 Internal Connection Diagram of Scanner Unit Type NKE 1056 ...
Page 304: ...Appendix 8 Internal Connection Diagram of Display Unit Type NCD 3901 2 ...
Page 308: ...Appendix 10 NSK Log Selection Switches of Display Unit Type NCD 3901 2 ...
Page 309: ...Appendix 11 Setting Table of the Speed Log Select Switches of Display Unit Type NCD 3901 2 ...
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