Keysight Technologies N9321C User Manual page 144

Key Reference
MODE
136
Norm Ref Lvl Sets the level (in dB) of the normalized reference.
Norm Ref Posn Offsets the displayed trace without affecting the
Ref Trace
View Blank
The minimum resolution band widths is 3 kHz in the tracking generator
N O T E
mode.
amplifier. Now, replace the thru line with the device
under test, and an accurate measurement of the gain
or loss can be made.
instrument gain or attenuation settings. This allows
the displayed trace to be moved without decreasing
measurement accuracy. The normalized reference
position is indicated with a (>) character on the left
side of the display and a (<) character on the right
side of the display.
Allows you to view or blank the reference trace on the
display.