The AIS Class A vessel object will optionally transmit AIS Message Types 1 and 5.
Operation
After clicking the "Start" button the AIS simulation will start, and the messages will be sent to the selected output port of the PC, until the "Stop" button is pressed. Note that only those messages will be sent that are checked.
All messages are shown in the I/O Port Monitor as they are output. When logging is ON (toolbar option), the sentences will also be written to the user selected log file.
Clicking the "Stop" button will suspend the operation, until "Start" is clicked again.
When the Transmit Interval is set to 0.0 the sentences are output as "single shot" each time you click the "Start" button.
Clicking the little X top-right will exit the object and save optionally all current values, so that next time the target is opened it can continue where it stopped. Note: saving is an optional setting in the General Settings.
A short description of each field follows.
MMSI number
9-digit MMSI number.
Auto generated by NemaStudio when instantiating a new object.
The ROT control gives the actual Rate Of Turn in degrees/min. The actual ROT in deg/min is converted to the ROTais value (+/- 126) and stored in the ROT field in message 1. When the "No TI"(no Turn Information) checkbox is checked the ROTais value -128 is stored in the ROT field in message 1.
When the value in the ROT up/down control > 708 or < -708 then the ROT ais value is set to 127 or -127.
Current position of the vessel. To change the value the instrument must be stopped. To change: place the mouse cursor left of the leftmost digit. Then just start typing the latitude or longitude, the cursor will advance automatically and the value will be automatically formatted. During a simulation session the position will be continuously updated to the newly calculated current position, taking course and speed into account. When a GPS is linked, the position is taken from the GPS.
