User's Manual

38
ALR
Description
AIS: TX Malfunction
A Tx Malfunction alarm is generated if a
malfunction in the radio transmitter hardware
such as low Tx power or frequency drift is
detected.
AIS: Antenna VSWR exceeds limit
The VSWR (Voltage Standing Wave Ratio) of the
antenna is checked by every transmission. If it
exceeds a given threshold, a VSWR alarm is then
triggered.
AIS: RX Channel x malfunction
(AIS: Rx channel 1 malfunction,
AIS: Rx channel 2 malfunction)
The AIS receivers are continuously monitored. If
any part of the receiver hardware should
malfunction, an Rx Malfunction alarm is
generated for that receiver.
AIS: General failure
This alarm occurs if the transceiver fails to
initiate the radio or if a severe hardware failure
has occurred.
AIS: No position sensor in use
This alarm occurs if the transceiver receives no
valid position (latitude/longitude) from any
sensor.
AIS: No valid SOG information
This alarm is active if the AIS transceiver has no
valid Speed Over Ground information from any
connected sensor.
AIS: No valid COG information
This alarm is active if the AIS transceiver has no
valid Course Over Ground information from any
connected sensor.
For details about the Alarm Settings, please refer to chapter “Options→General→Alarm
Settings”