X72 1PPS Algorithm Theory of Operation
90 X72 Desiger’s Reference and User’s Guide 097-10603-01 Rev. A – November 2004
Holdover
Figure D-7 X72 Holdover State
During holdover, 1PPS input statistics are
accumulated and periodically the results are
calculated (CalcSlope State).
The sample size is set to 120 data points
(120 seconds).