User's Manual

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2.3 Functions of Software Buttons
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Target tracking (TT) / AIS information
①：Target vector display true / relative switching
The tracked target / AIS target vector display is switched to T (true vector) / R (relative vector)
whenever this button is clicked.
This setting is switched together with the past position display true / relative switching.
(Display does not change even if this key is switched on the JPL-600-MK2 for VTS.)
②：Target vector length setting
Set a vector length of the tracked target / AIS target.
If this button is clicked, the numeric value input screen is opened. After setting the length, determine
the setting by clicking ENT .
③：CPA limit setting
Set a CPA limit.
If this button is clicked, the numeric value input screen is opened. After setting the limit, determine
the setting by clicking ENT .
④：TCPA limit setting
Set a TCPA limit.
If this button is clicked, the numeric value input screen is opened. After setting the limit, determine
the setting by clicking ENT .
⑤：Past position display true / relative switching
The tracked target / AIS target past position display is switched to T (true past position) /
R (relative past position) whenever the button is clicked.
This setting is switched together with the target vector display true / relative switching.
(Display does not change even if this key is switched on the JPL-600-MK2 for VTS.)
⑥：Past position display interval switching
The past position display interval is switched whenever the button is clicked.