Specifications
VP ONCORE COMMAND REFERENCE
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1PPS TIME OFFSET COMMAND (@@Ay)
NOTE: The input/output messages described here are available only if
VP Options āAā or āIā are installed.
The VP computes position relative to a measurement epoch that occurs
once per second. In addition, the receiver outputs a one pulse-per-
second (1PPS) signal, the rising edge of which is placed on top of the
GPS/UTC one-second tic mark epoch. The 1PPS Time offset command
allows the user to offset the one pulse-per-second time mark in one
nanosecond increments. The offset is relative to the Measurement
Epoch offset. The corrected time reference is relative to either GPS or
UTC time, as specified and set by the user with the
@@Aw command.
The resolution of this parameter is one nanosecond. This does not imply
that the accuracy of the 1PPS output signal is to this level. The absolute
accuracy of the signal is a function of GPS time accuracy, and is subject
to degradation due to U.S. Department of Defense policy.
Range: 0.000000000 to 0.999999999 seconds
Default Value: 0.000 seconds
Resolution: 1 nanosecond
66 Synergy Systems, LLC 05OCT01