User's Manual

“CPA/TCPA” (Distance to Closest Point of Approach/Time to Closest Point of Approach):

Click on “CPA/TCPA”, and the window will pop up as below (Refer to figure 4-3-2-3-4). User can

set the CPA and TCPA according to your requirement. When a ship is entering the alert area, it

would be marked in red color (Refer to Section 4.3.1.1 “Radar View”). Click on to

complete the setting.

 nm: Nautical Mile

 min: Minute

*NOTE 1: This function would be invalid without GPS data input.

*NOTE 2: AMEC AIS devices merely provide AIS data, and they are NOT allowed to set

CPA/TCPA. However, users may set up CPA/TCPA through other maritime

equipments: Chartplotter, Radar Plotter, or PC (through AMEC AIS Viewer Program).

For certain audio alarm, users should refer to your own interfaces. PC and AMEC

AIS Viewer Program DO NOT support any kind of audio alarm.

Figure 4-3-2-3-4 CPA/TCPA Setting