TRAK MODEL 9100 MODULAR FREQUENCY/TIME SYSTEM
3-17
TM4400013
Rev
D
3-5.4
Request / Setup Commands
Set/Request Time Format 1 or Time Format 2
This command sets or requests the time format of the TOD output port.
Request
mode:
Host sends:
SCM <CR>
9100 replies:
TIME FORMAT X <CR><LF>
Where:
X is 1 for Time Format 1
X is 2 for Time Format 2
Set
mode:
Host sends:
SCM 1 <CR> (For Time Format 1 (see para. 3-4.1)
SCM 2 <CR> (For Time Format 2 (see para. 3-4.2)
9100 replies:
SCM Done
Set/Request user offset and antenna delay compensation
This command provided the user to offset the GPS 1 PPS reference for antenna delay compensation and to
offset the GPS 1 PPS from UTC.
Request
mode:
Host
sends:
X.SDC<CR>
9100
replies:
X.SDC
suuuuuuuuu,aaaaaa<CR><LF>
Where:
suuuuuuuuu is the signed user offset in nanoseconds up
to
500000000ns
aaaaaa is the antenna delay compensation in nanoseconds
up
to
999999ns
X is described on command summary page
Set
mode:
Host
sends:
X.SDC suuuuuuuuu,aaaaaa<CR>
9100
replies:
X.SDC DONE<CR><LF>
Where:
Same as for SDC request mode
WARNING: Time accuracy is degraded if incorrect offset or antenna delay compensation is entered.