rev1 – Dec 2013 www.digitalcomtech.com 29
EV - Event Message
Qualifiers: R.
This message is generated when an event is triggered and reported. The message has the
following format:
AABBBBCDDDDDEEEFFFFFGGGGHHHHHIIIJJJKL[EXTENDED-
EV TAGS]
o AA: Event index. Range 0-99.
o BBBB: Number of weeks since 00:00 AM January 6, 1980.
o C: Day of week. From 0 to 6 where 0 is Sunday.
o DDDDD: Time of the generated report. Seconds since 00:00 of the current date.
o EEEFFFFF: WGS-84 Latitude. It does include the sign: Positive for
north. EEE represents a value in degrees and FFFFF parts of a degree in
decimals.
o GGGGHHHHH: WGS-84 Longitude. It does include the sign: Positive for
east. GGGG represents a value in degrees and HHHHHparts of a degree in
decimals.
o III: Vehicle velocity in mph.
o JJJ: Vehicle heading, in degrees from North increasing eastwardly.
o K: Position fix mode:
0: 2D GPS
1: 3D GPS
2: 2D DGPS
3: 3D DGPS
9: Unknown
o L: Age of data used for the report:
0: Not available
1: Older than 10 seconds
2: Fresh, less than 10 seconds
9: GPS Failure
o [EXTENDED-EV TAGS]: Extended information tags. See the XAEF message for
information on how to set the EV tags, and consult the list below for more
information on the format used by each tag to present the information.
Example:
An Event Message could be like this:
>REV481599462982+2578391-0802945201228512<
Which indicates that the report was generated by the Event Definition 48, on September
2nd, 2010 (1599 4), at 17:29:42 GMT (62982), with the
coordinates +25.78391 latitude and -080.29452 longitude, with a speed
of 012 mph, and a heading of 285 degrees, with a 3D GPS fix mode and the age data
was recent.
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