aismsg_4 Struct Reference

#include <vdm_parse.h>

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Detailed Description

AIS Message 4 - Base Station Report.

Data Fields
char	msgid
	6 bits : MessageID (4)
char	repeat
	2 bits : Repeated
unsigned long	userid
	30 bits : UserID / MMSI
int	utc_year
	14 bits : UTC Year
char	utc_month
	4 bits : UTC Month
char	utc_day
	5 bits : UTC Day
char	utc_hour
	5 bits : UTC Hour
char	utc_minute
	6 bits : UTC Minute
char	utc_second
	6 bits : UTC Second
char	pos_acc
	1 bit : Position Accuracy
long	longitude
	28 bits : Longitude in 1/10000 minute
long	latitude
	27 bits : Latitude in 1/10000 minute
char	pos_type
	4 bits : Type of position fixing device
int	spare
	10 bits : Spare
char	raim
	1 bit : RAIM flag
char	sync_state
	2 bits : SOTDMA sync state
char	slot_timeout
	3 bits : SOTDMA Slot Timeout
int	sub_message
	14 bits : SOTDMA sub-message

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Field Documentation

char aismsg_4::msgid

6 bits : MessageID (4)

char aismsg_4::repeat

2 bits : Repeated

unsigned long aismsg_4::userid

30 bits : UserID / MMSI

int aismsg_4::utc_year

14 bits : UTC Year

char aismsg_4::utc_month

4 bits : UTC Month

char aismsg_4::utc_day

5 bits : UTC Day

char aismsg_4::utc_hour

5 bits : UTC Hour

char aismsg_4::utc_minute

6 bits : UTC Minute

char aismsg_4::utc_second

6 bits : UTC Second

char aismsg_4::pos_acc

1 bit : Position Accuracy

long aismsg_4::longitude

28 bits : Longitude in 1/10000 minute

long aismsg_4::latitude

27 bits : Latitude in 1/10000 minute

char aismsg_4::pos_type

4 bits : Type of position fixing device

int aismsg_4::spare

10 bits : Spare

char aismsg_4::raim

1 bit : RAIM flag

char aismsg_4::sync_state

2 bits : SOTDMA sync state

char aismsg_4::slot_timeout

3 bits : SOTDMA Slot Timeout

int aismsg_4::sub_message

14 bits : SOTDMA sub-message

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The documentation for this struct was generated from the following file:

• /Users/brianlane/projs/aisparser/c/src/vdm_parse.h

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