Specifications

94 Chapter 4
Preparation for Accurate Measurement
Fixture Compensation
Select Fixture Compensation Data Measurement Points
Select fixture compensation data measurement points from the following table. Note that
when fixed points are used to measure fixture compensation data, fixture compensation
coefficients are calculated through interpolation.
Use the following GPIB command to select fixture compensation data measurement
points.
• SENS:CORR2:COLL:FPO on page 450
NOTE Calibration data measurement points are set in coordination with fixture compensation data
measurement points. To select calibration data measurement points, use the
SENS:CORR1:COLL:FPO command.
Measurement points Description
Fixed frequency / fixed power
points compensation
Measures fixture compensation data at the E4991A
predefined fixed frequency points and over the
entire oscillator range.
Fixed frequency / user defined
power points compensation
Measures fixture compensation data at the E4991A
predefined fixed frequency points and at
user-defined oscillator level.
User-defined frequency / user
defined power points
compensation
Measures fixture compensation data at user defined
frequency points and at user defined oscillator level.