MRE-280
Descriptions
Operation Manual
93144222-01
7
screen. A vacant row with a “-“ indicates no target has been acquired.
4.3.2 Tracking a target
As soon as a stable tracking is established, the target is circled with the tracking symbol and a vector is
created from the target. The target tracking continues even if the range scale is changed. However,
take care for small targets because, when the range scale is changed from a long or a medium range to
a short range, the target (therefore the target intensity) becomes small in size. This may cause the ATA
to lose track of the target due to an echoing area being reduced by the short transmission pulse. In
such a case, the lost symbol mark will be displayed at the spot where the target disappeared.
4.3.3 Canceling target tracking
To cancel tracking, use the DEL (delete) function. The target number shown in the upper right corner of
the screen will disappear. If ALL DEL (delete all) is selected, the ATA will cancel tracking of all targets.
Use the following procedure to do:
(1) Press the soft key when the DEL function has been set.
(2) When using the menu driven “cancel” function, place the cursor on NAVI/DEL or NAVI/ALL DEL
and press the ENT key.
The target tracking will be stopped when the radar is set to standby mode.
4.3.4 Data display
The numerical data of the target being tracked can be displayed in the data display window. Use the
DATA function to display the data. The data of the target will be shown.
To use the menu driven DATA function, place the cursor on NAVI/DATA and press the ENT key.
Figure 4 ATA symbols and their on-screen display
Cross cursor
Target number.
Vector
Tracking symbol
X
X
X
X
Target which data is
currently displayed
Lost symbol used for a
target which is dropped
form tracking
NOTE:
“X” indicates a target number.
Acquisition symbol affixed
to an acquired target
Tracking symbol affixed to
a tracked target