Spectracom NetClock 9489 - Format BBC-02

mo Month (01-12)
da Day of month (01-31)
dw Day of week (01=Monday to 7=Sunday)
ho Hours (00-23)
mi Minutes (00-59)
sc Seconds (00-59)
5.4.14.2 Format BBC-02
This is a hexadecimal frame/message sent twice per second. The message should be sent such
that the final “99” occurs at 0msec and 500msec.
Number of bytes: 26
Format:
START Year Month Day Hour Min Sec.
AA AA 07 DA 06 16 13 59 01
Millisecond
Time
Zone
Daylight
Leap-
second
Sign
Leap- second
Month
Leap-
second
Zone
GPS
Week
02 BA 80 00 00 00 00 00 1A 2A
GPS Second GPS to UTC Offset Check-sum END
09 3A 7E 12 FE 99 99
Where:
Leap Second Sign:
01=Positive
FF=Negative
00=No leap second
406 NetClock User Reference Guide
APPENDIX