Si-tex SAS-900, Installation And Operation Manual, Page: 52 / 104

Operation
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Table 6 Alarms list
4.6.8 Messages
AIS text messages and Safety Related Messages (SRMs) can be received
from other AIS equipped vessels and also sent to specific vessels (addressed
messages) or sent to all vessels in range (broadcast messages).
Reception of an AIS text message is indicated by the presence of the message
icon at the top of the screen. This icon is shown whenever there are unread
AIS text messages. Messages can be reviewed and replied to via the Inbox.
The AIS transceiver can store up to a maximum of 20 messages in the Inbox
and 20 messages in the Sent folder. If the number of messages exceeds 20
then the oldest message will be overwritten.
When a Safety Related Message is received the user will be notified
immediately with a pop-up showing the message. Standard text messages are
not displayed on receipt, however the message icon will be displayed at the
top of the screen.
Active AIS SART An active AIS SART (AIS Search and
Rescue Transmitter) message has been
received. The SART will be displayed as the
top item in the target list. Select this item to
see the location of the SART.
Internal / External GNSS
mismatch This alarm occurs if the difference in position
reported by the internal and external GNSS
receivers is too large. Check the vessel
dimensions and GNSS antenna locations
have been entered correctly.
Heading sensor offset This alarm occurs if the difference between
the course over ground and heading data is
greater than 45° for more than 5 minutes.
This alarm only occurs if the vessel speed
over ground is greater than 5 knots.
Alarm Description