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2. OPERATION
2.1 AIS Transponder FA-50
The FA-50 has no power switch. Power is fed from the ship’s switchboard, and a pow-
er switch on the switchboard turns the FA-50 on or off. When powered, the PWR LED
(green) on the cover lights. The three other LEDs on the cover flash or light with equip-
ment state. The ER LED (red) lights while the equipment is being initialized, and flash-
es when equipment error is found. The RX LED (orange) lights when receiving.The TX
LED lights blue when transmitting, orange when TX time out is occurs.
Sending/receiving Messages
You may send and receive messages via the VHF link, to a specified destination (MM-
SI) or all ships in the area. Messages can be sent to wan of safety of navigation; for
example, an iceberg sighted. Routine messages are also permitted.
Short safety-related messages are only an additional means to broadcast safety infor-
mation. they do not remove the requirements of the GMDSS.
The contents of the message may be viewed on the receive message log.
RX LED
Lights (in orange) 50 ms when channel
RX1/RX2 is receiving.
ER (Error) LED
Flashes (in red) for RAM, ROM, RX1+RX2 error.
PWR (Power) LED
Lights (in green) when power is on.
TX
TX LED
-Lights (in blue) when channel TX1/TX2 is
transmitting.
-Lights (in orange) when TX1/TX2 cannot be
transmitted continuously (Tx time out*.)
RX
*Lights also when not registering MMSI.
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