Users manual
Appendix A
Revision #:
A
Date:
07-14-15
Page
43
of
58
Notes:
-
This command is output every second.
-
Present LS is current leap second. This is updated in the timing of leap second update schedule.
-
$PERDAPI,CROUT,W,0*4F stops outputting this command.
-
Update data indicate zero when no update schedule.
Restriction:
About time status
alignment
Before first fix
After first fix
After taking confirmed leap second
GPS
RTC
GPS
GPS
UTC(USNO)
RTC
GPS
UTC
UTC(SU)
RTC
GPS
UTC
About leap second which is used to adjust output time
alignment
Before first fix
After first fix
After taking confirmed leap second
GPS
0
0
0
UTC(USNO)
Default leap second Default leap second
confirmed leap second
UTC(SU)
Default leap second Default leap second
confirmed leap second
GT-87 takes confirmed leap second when GT-87 takes UTC (USNO) parameter which is broadcasted
from GPS or takes time both GPS and GLONASS.
