calibration of the symmetricom ceasium standard 5071a

[radhiabouras]

One of the methods outlined in the calibration procedure is the gps methods.
the method call for a gps standard and a tracor 888 phase comparator standard. which is obsolete.
Is there any replacement for the tracor 888?

[beadwork]

T.O. 33K3-4-2133-1 (30July2013) lists RSM Enginnering Inc. 9121 LINEAR PHASE PLOTTER as a sub-item for the Tracor 888 (Accuracy is listed as N/A). Hope this helps.