Tweaked the alignment into the reference cavity.  The transmission went from being ~0.83 to 2.63.  Most of the adjustment was in the
vertical.  The mirror at the bottom of the periscope was adjusted so that the reflected beam moved "up" on the camera view, this
corresponded to "loosening" the pitch adjustment.

    Replaced the 45 MHz EOM driver.  Old S/N S1500118.  New S/N S1500117.

    Cable length of 45 MHz signal from the EOM SMA connector to the EOM driver (D0900760) N connector is ~84 inches.