MDC-1840BB/1841BB/1860BB/1810BB/1820BB Series Chapter 6
Using The Menu
Operation Manual
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data will be cleared.
NOTE:
The target detection echo level can be set with the menu
“ADJUST/PRESET/TARGET LEVEL”.
6.7.5 ATA symbols
Acquisition symbols
The symbol mark for the plotted target changes as follows according to the plotting
status:
This symbol appears when a target is acquired for the first time.
This symbol appears when the target tracking becomes stable. A vector
develops and the target data can be displayed when its target
number is assigned (highlighted).
This symbol appears when a target tracking becomes stable with its
target number assigned. The target data is shown in the right side of the
screen.
Warning symbols
The following symbols are used in the EPA functions to notify the operator of a
high-risk target or invalid plotting. These symbols will blink when they are shown.
This is a CPA alarm symbol that appears when a displayed target is
predicted to infringe a predetermined CPA and/or TCPA range. It
blinks at an interval of 0.5 seconds. The data can be displayed by
assigning the target number.
This is a CPA alarm symbol that appears when the relevant target
number is assigned. The rest of the features are the same as above.
This symbol appears with audio alarm when the target is lost during
tracking. The on-screen error message “UNRELIABLE PLOT DATA” will
also appear on the screen. The symbol mark and audio-visual alarm will
be turned off automatically 15 seconds after first appearance of the
symbol.
This symbol appears when the target enters the Guard Zone. The
symbol is shown overlaid on the target and is automatically deleted as
the target leaves the zone.
