How To Filter Ais Targets; Ais Cpa/Tcpa Alarm - Furuno FMD-3200 Operator's Manual

14. AIS TARGET FUNCTIONS
14.5

How to Filter AIS Targets

1. Right-click [AIS] on the [TT/AIS] page in the [Overlay/NAV Tools box], select [Set-
ting] and open the [Setting.1] page.
(The [Setting.1] page can also be opened from the menu (MENU[TT/
AIS][Setting][Setting.1].)
2. In the [AIS DISP Filter] window, set each item referring to the descriptions below.
• Click the button of [Class A], [Class B] and [Base Station] to show [OFF] or [ON]
to hide or show those targets.
• Set the maximum range with [Max Range]. Any target beyond the range set
here will not be displayed.
• Set the ship speed for AIS targets, with [Min Ship Speed]. Any AIS target whose
speed is lower than that set here will not be displayed.
3. Click the [Save] button to save settings. Click the [Close] button to close the dialog
box.
Note: AIS and tracked target viewing limitations are as follows:
• AIS and tracked targets are displayed on top of chart 1:1,000,001 for S57
charts.
• AIS and tracked targets are displayed on top of chart 1:1,900,001 for ARCS
charts. This allows display of AIS and tracked targets on top of the largest scale
ocean charts (original scale 1:3,500,000) when they are zoomed to "overscale".
14.6

AIS CPA/TCPA Alarm

A dangerous AIS target is one whose CPA and TCPA are within the range of the CPA
and TCPA limits set in the information area. A dangerous AIS target is displayed as a
blinking target symbol in red as long as you acknowledge the "AIS CPA/TCPA" alert.
Then the target symbol is displayed in red color.
When a target whose CPA or TCPA is within the limits set here the buzzer sounds and
the Alert 536 "AIS CPA/TCPA" appears in the [Alert] box.
14-6