5─12 
5
5.2    ATA OPERATION
yy
yyy
 
If untracked targets intrude into the guard zone in the 
conditions that maximum number of targets is under 
tracking, the targets acquired automatically will be 
cancelled in the order of lower levels of danger. 
5.2 ATA OPERATION 
 
 
This section explains how to use the ATA functions. 
Each function is available only when the ATA option is installed. 
The functions automatically track a target, and store/display vectors as the course and speed. 
They calculate CPA and TCPA, and issue an alarm. 
The ATA function can track up to 30 ships. 
The guard zones can be set for automatic acquisition. 
When the power is turned off or the transmit/standby mode is activated, tracking data is erased from memory. 
 
 
 
5.2.1  Acquiring Target 
 
Target acquisition can be performed on two modes, AUTO and MANUAL, and both modes can be used at the 
same time. 
 
 
 
Automatic Acquisition [AUTO] 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 Procedures   1  Press the [GZ ALARM] key. 
 
Automatic acquisition will be started.    The mark “
 
 
” and target ID number are put to 
an acquired target, and they move together with the target.    The vectors are displayed 
within one minute. 
 
2  Press the [GZ ALARM] key again. 
 
Automatic acquisition will be turned off, and the guard zone disappears from the radar 
display.    However, automatically acquired ships are continuously tracked. 
 
For the guard zone to be called by using the [GZ ALARM] key, refer to Section 5.1.6 
Setting Automatic Acquisition Key Assignment. 
 
 
* The guard zone can be called by using buttons      and      shown in the radar display on page 2-7. 
 
Attention 
49 50