Furuno AIS Transponder FA-50 - Manual (Page 33)

2. OPERATION
2-7
2.4 Alarm Status
The alarm status log shows alarms violated. Click “Alarm Status” on the top menu to
show the alarm status log.
Alarm Status Indication Meaning
TX TX malfunction (and Error LED lights.)
RX1
TDMA RX1 Board trouble. TX stopped on corresponding
TX channel.
RX2
TDMA RX2 Board trouble. TX stopped on corresponding
TX channel.
COG Invalid COG data.
EPFS
No data from external navigator. Continued operation pos-
sible.
HDG Invalid/nonexistent HDG data
L/L No L/L data
SOG Invalid SOG data