14. Ais, Dsc Message; What Is Ais; How To Show Or Hide The Ais Symbols; Ais Target Symbols - Furuno NAVNET TZ2 TZTL12F Operator's Manual

14. AIS, DSC MESSAGE

14.1

What is AIS?

AIS (Automatic Identification System) is a system that continuously transmits the iden-
tification and position of your ship to AIS-equipped ships within VHF range. All such
ships also receive data from other AIS-equipped ships and display their positions and
other relevant information. The AIS broadcasts this information over a VHF transceiv-
er. The information is as shown below.
• Position
• Name of ship
• Course over ground
• Heading
14.2

How to Show or Hide the AIS Symbols

1. On the radar display or chart plotter display, open the Layers menu.
2. Turn [AIS Targets] on or off.
14.3

AIS Target Symbols

Target
type
Activated
AIS target
ROT (Rate of Turn)
Symbol color
Blue: Class A AIS target
Green: Class B AIS target
Blue (hollow): BFT AIS target (see next page)
Dangerous
AIS target
• Call sign
• Speed over ground
• Rate of turn
Symbol
SOG/COG
vector
Heading
line
Color: Red
Description
COG is indicated on the symbol with
a dotted line.
Note: An AIS symbol that has a "TX
marker" (callout) above it indicates
that vessel has transmitted an AIS
message.
TX marker
(callout)
The target whose CPA and TCPA are
smaller than the CPA/TCPA (see
section 14.11). alarm setting is indi-
cated as a dangerous target.
14-1