Operation Manual

89-042 Issue 5 37
4.9 Addressed Message Filter
(Automatically selected)
Enables filtering of addressed UAIS messages. When addressed message filter is
“on” the station does not display messages addressed to other AIS stations, when
“off” all received addressed messages will be displayed.
4.10 Media Analyser Mode
Designed to work with the proprietary Transas media analyser software. This option
should be set to “No”.
4.11 Max. Repeating Message 6, 12
(Default = 4)
This is the maximum number of times message 6 (addressed) and 12 (addressed
safety) are repeated if no acknowledgement is received.
4.12 Transmission w/o Sync
(Default = Yes)
The built-in GNSS unit will under normal conditions only be used for TDMA slot
timing. However if no data are received from the external sensors, the built-in
GNSS unit can be set to take over automatically and supply navigational
information for the VHF data link transmission. The changeover between internal
GNSS information use and external sensor information use happens automatically,
information received from the external sensors has priority and will always be used
when available. If no time slot synchronisation is available from either of these
sources and cannot be obtained from another station then this feature allows
transmission without TDMA synchronisation.