Scheduled position report Need to make much of this an include-struct so that 1-3 are as simple as possible 168 F S 1 AU SOTDMA RATDMA ITDMA SOTDMA mobile AIS message number. Must be 1 1 Indicated how many times a message has been repeated 0 default do not repeat any more 1 Unique ship identification number (MMSI) 1193046 What is the vessel doing 15 under way using engine at anchor not under command restricted maneuverability constrained by her draught moored aground engaged in fishing under way sailing reserved for future use (hazmat) reserved for future use reserved for future use reserved for future use reserved for future use reserved for future use not defined = default 3 RateOfTurn Rate of turning. Positive right; negative left. BROKEN! This field is completely messed up due to the requirement to do a sqrt. Need to fix this some day -128 4.733*sqrt(val) degrees/min -2 Speed over ground 102.3 102.2 knots or higher knots 10 1 101.9 Accuracy of positioning fixes low (greater than 10 m) high (less than 10 m) 1 Location of the vessel Course over ground 360 degrees 10 1 34.5 True heading (relative to true North) 511 degrees 41 UTC second when the report was generated 60 not available/default manual input dead reckoning inoperative seconds 35 Reserved for definition by a regional authority. 0 Not used. Should be set to zero. 0 Receiver autonomous integrity monitoring flag not in use in use 0 Communications State - SOTDMA