Programming Instructions

LD2342 V1.3 Page 18 of 21
SRT Marine
User guide
SRT-MTB
©
proAIS Application
Commands tab
The commands tab provides access to software controlled features of the SRT-MTB transponder. Depending on the AIS
software version the following commands may be available:
•
Silent mode
o
Buttons to enter / exit silent mode. In Silent mode the transmitter is disabled and no position reports are
transmitted by the unit. Other AIS users will be unaware of your position in this mode so it should be used with
caution and only where allowed by local regulations.
•
Safety related message
o
A button is provided to trigger the transmission of a Safety Related Message. Clicking this button will display a
confirmation dialog box. Clicking 'OK' in the confirmation dialog box will cause a Broadcast Safety Related
Message with the contents "MAYDAY MAYDAY" to be transmitted to all other AIS equipped vessels and base
stations in the area.
•
Configure baud rates
o
Baud rates for the RS232 and RS422 (NMEA 0183) communications ports can be set here. The default value
is 38400 & should be used where possible. The 'Update' button should be clicked to send new settings to the
AIS transponder.
•
GPS output options
o
By default the AIS transponder will output its current GPS position data every four seconds via the RS232 and
NMEA serial interfaces. This information is sent using the GPRMC sentence and can be used to provide your
vessels GPS position to a chart plotter connected to the unit. A higher position update rate (once per second)