Amplitude Calibration; Lo Adjustment - Keysight X Series Measurement Manual

Option Esc External Source Control
Using the M1970 Series Mixers with X-Series Signal Analyzers (Option EXM)
Step
3 With wide spans, increasing
the number of sweep points
may improve the effectiveness
of image suppressing.

Amplitude calibration

The M1970 Series mixers automatically download a conversion loss file to the signal
analyzer, and this conversion loss table is used to correct the measured amplitude. It
is not possible to view or edit the conversion loss file. The Certificate of Calibration
that is provided with each mixer lists the conversion loss measured at the factory.

LO adjustment

The LO adjustment will run each time the USB connection is made, and if the signal
analyzer Alignments are set to Normal, the LO adjustment will be performed based
on time and temperature rules similar to the other signal analyzer alignments. Both
the mixer and the spectrum analyzer temperature sensors are monitored by the
alignment algorithm. If the Alignment is set to OFF, the LO Alignment will not be
performed based on time and temperature, and it will be necessary for the user to
determine when to perform alignments.
To manually trigger an LO alignment from the front panel, press System,
Alignments, Align Now, External Mixer.
Action
a. Press Sweep/Control,
Points, enter the number,
and press Enter.
188
Notes