GP1670F_1870F Operator's Manual - Furuno USA

10. OTHER FUNCTIONS10.1.2 How to find AIS target informationPut the cursor on an AIS target symbol to show AIS target information.Name FURUNOLatitude 34°39.0413NLongitude 135°21.8571EMMSI 456342110Call Sign 1AB23SOG 15.3 knCOG 234°THDG 235°TCPA 3.28 NMTCPA 00:11:4010.1.3 AIS activation rangeThe default AIS activation range is 5.0 nm. Any AIS target that is within 5.0 nm of yourboat is automatically activated. If you require a shorter or longer activation range, youcan change the range from the menu. Open the [SYSTEM] menu and select [AIS SET-UP]. Select [ACTIVATION RANGE] and enter the range desired. (Note that trackingcontinues internally on a maximum of 200 targets within 50 nm.)10.1.4 CPA and TCPA alarmsThe CPA alarm sounds when an AIS transponder equipped vessel comes within theCPA alarm range set. The TCPA alarm alerts you when an AIS transponder equippedvessel is within the time you specify.Do the following to set the CPA and TCPA alarms:1. Open the menu then open the [SYSTEM] and [AIS SETUP] menus.2. Select [CPA ALARM] or [TCPA ALARM] as appropriate.CPA alarm setting windowTCPA alarm setting window3. Line 1 in the window is selected; push the RotoKey TM then select [On].4. Set the range (CPA alarm) or time of closest approach (TCPA alarm) on line 2.5. Press the ESC/MENU key to close the menu10-2