Safran VersaSync - 5.3.15.3 Format BBC-03 PSTN

Leap Second Zone:
0=Out of zone
1=Within zone
Zone is 15 minutes before to 15 minutes after a leap second.
GPS Week:
Up to FFFF
GPS Second:
Second of week 000000 up to 093A7F (604799 decimal)
GPS to UTC offset:
2’s complement binary signed integer, seconds
Checksum:
Sum of all bytes up to and including the checksum (sum includes the AAAA
start identifier but excludes the 9999 end identifier)
5.3.15.3 Format BBC-03 PSTN
The third format is a string ASCII characters and is sent on a received character.
The message should be advanced by an appropriate number such that the stop
bit of each <CR> occurs at the start of the next second. For example, at 300 baud,
8 data bits, 1 stop bit, and no parity, each byte takes 10/300s=33ms, so the <CR>
byte should be advanced by 33ms in order for the <CR>’s stop bit to line up with
the start of the next second.
Time information is available in UTC format or UK TOD format.
‘t’ command
Input format: t<CR>
Output format:
Current Second Second + 1 Second + 2 Second + 3
<CR> HHMMSS<CR> HHMMSS<CR> HHMMSS<CR>
364 VersaSync User Manual
APPENDIX