Other Functions; Ais Operations; Ais Target Symbols - Furuno GP-1670 Operator's Manual

9.

OTHER FUNCTIONS

9.1

AIS Operations

AIS (Automatic Identification System) is a system that continuously transmits the iden-
tification and position of your vessel to other nearby vessels. All such vessels also re-
ceive data from other AIS-equipped vessels and display their positions and other
relevant information. The AIS broadcasts this information over a VHF transceiver.
Data include:
• Position
• Call sign
• Name of vessel
• Speed over the ground
• Course over the ground
• CPA
A maximum of 200 targets can be displayed, in the order in which they are received.
Connection to a Class A or B AIS transponder is required.
9.1.1

AIS target symbols

Symbol
COG
• Name of position-fixing equipment
• Position of position-fixing equipment
• Rate of turn
• Heading
• MMSI no.
• TCPA
Target category
AIS target
Dangerous AIS
target
Lost AIS target
Color
White COG is indicated with a solid line.
White An AIS target is declared a dan-
(flashing) gerous target when its CPA and
TCPA put the target on a collision
course with your vessel.
White An AIS target becomes a lost tar-
get if a signal is not received from
the AIS target for x* minutes. The
lost target symbol is erased if a
signal is not received for an addi-
tional x* minutes. *The time de-
pends on the AIS transponder.
Check your AIS owner's manual
for details.
Description
9-1