Anritsu Series MS278XB - Manual (Page 132)

Menu Archive Front Panel Menus
4-34 MS278XB OM
Service Menu
The Service menu lets you toggle the internal 50 MHz calibrator Off and On and initiate a calibration
alignment.
Table 4-24. Calibrator Menu
Calibrator: To toggle the internal 50 MHz calibrator Off or On, press on the calibrator
Off/On toggle button.
To initiate a calibration alignment, press on the Cal Align... button.
Warning: This changes the level of the internal calibrator and should only be performed
by qualified service personnel.