2. TARGET TRACKING (TT)
2-12
2. Click [PAST POSN].
3. Click [INTERVAL].
4. Click the plot interval desired (0.5 min to 6 min). Click [OFF] to erase all past po-
sition points and deactivate the past position display.
5. Click [POINTS].
6. Click the number of dots to display, 5 or 10.
7. Click outside the menu window to close the menu.
2.11.2
Past position display mode
The display mode for the past position display is the same as that set for the TT vector.
In the true motion mode, the true vector is displayed. See paragraph 2.10.1.
2.12
CPA/TCPA Alarm
The CPA/TCPA alarm alerts you when both the CPA and TCPA of a TT is within a de-
fined limit.
CPA and TCPA of the target is less than the alarm settings.
1. Open [MAIN MENU], click [ALARM].
2. Click [TT
.
AIS].
3. Click [CPA LIMIT].
4. Click [CPA LIMIT].
5. Click [ON].
6. Click [RANGE].
7. Select the desired distance for CPA (Setting range: 0.1 to 24 NM) with the setting
knob.
8. Click [TIME].
9. Select the desired time for TCPA (Setting range: 30 sec to 15 min) with the setting
knob.
10. Click outside the menu window to close the menu.
[PAST
POSN]
1 BACK
2 INTERVAL
OFF/0.5min/1min/2min/
3min/6min
3 POINTS
5/10
[CPA
LIMIT]
1 BACK
2 CPA
LIMIT
OFF/ON
3 RANGE
01.
0NM
4 TIME
30sec
[TT•AIS]
1 BACK
2 [CPA
LIMIT]
Click
