Endrun Formats - Spectracom SecureSync User Reference Manual

These commands are emulated only and contain only time information; position and velocity
information is zeroed out. No controlled data is included in the messages, hence no SAASM GPS
receiver is required.
The ASCII Output supports two configurations for supporting SINCGARS:
A configuration of Time Transfer as Message Format1 and Current Status as Format2 causes the
SINCGARS protocol to be emulated and the machine state to be initializated.
Format1 : Time Transfer (5101)
Format2 : Current Status (5040)
Format3 : Buffer Box (253)
A configuration of Current Status as Message Format1 and Time Transfer as Format2 results in
broadcasting of the messages Current Status (1Hz), Time Transfer (1Hz), and Buffer Box (1/6Hz)
at their default rates.
Format1 : Current Status (5040)
Format2 : Time Transfer (5101)
Format3 : Buffer Box (253)
8.1.15

EndRun Formats

The following formats provide compatibility with EndRun technology.
8.1.15.1 EndRun Time Format
E x a m p l e m e s s a g e :
T YYYY DDD HH:MM:SS zZZ m<CR><LF>
Where:
T
YYYY Year
DDD
SecureSync User Reference Guide
Time Figure of Merit character (TFOM), limited to the range 6 to 9:
9 indicates error >±10 milliseconds, or unsynchronized condition
8 indicates error <±10 milliseconds
7 indicates error <±1 millisecond
6 indicates error <±100 microseconds
Day of Year (001-366)
APPENDIX
485