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Chapter 11
Specifications and Supplemental Information
Measurement Support Functions
Measurement Support Functions
Error Correction
Available calibration and compensation
Calibration/Compensation data measurement point
Open/Short/Load Calibration
Connect open, short, and load standards to the desired
reference plane and measure each kind of calibration data.
The reference plane is called the calibration reference plane.
Low-Loss Capacitor Calibration
Connect the dedicated standard (low-loss capacitor) to the
calibration reference plane and measure the calibration data.
Port Extension Compensation
(fixture selection)
When a device is connected to a terminal that is extended
from the calibration reference plane, set the electrical length
between the calibration plane and the device contact. Select
the model number of the registered test fixtures in the
E4991A's setup toolbar or enter the electrical length for a
user's test fixture.
Open/Short Compensation
When a device is connected to a terminal that is extended
from the calibration reference plane, make open and/or short
states at the device contact and measure each kind of
compensation data.
User-defined point mode
Obtain calibration/compensation data at the same frequency
and power points as used in actual device measurement,
which are determined by the sweep setups. Each set of
calibration/compensation data is applied to each
measurement at the same point. If measurement points
(frequency and/or power) are changed by altering the sweep
setups, calibration/compensation data become invalid and
calibration or compensation data acquisition is again
required.
Fixed frequency and fixed power
point mode
Obtain calibration/compensation data at fixed frequency and
power points covering the entire frequency and power range
of the E4991A. In device measurement, calibration or
compensation is applied to each measurement point by using
interpolation. Even if the measurement points (frequency
and/or power) are changed by altering the sweep setups, you
don’t need to retake the calibration or compensation data.
Fixed frequency and user-defined
power point mode
Obtain calibration/compensation data at fixed frequency
points covering the entire frequency range of the E4991A and
at the same power points as used in actual device
measurement which are determined by the sweep setups.
Calibration/compensation data become invalid only if the
power points are changed, in which case calibration or
compensation data would need to be acquired again.
Summary of Contents for E4991A
Page 6: ......
Page 24: ...18 Contents ...
Page 80: ...74 Chapter3 Setting Measurement Conditions Averaging Measurement Results ...
Page 220: ...214 Chapter9 Setup and Use of Control Management Functions System Recovery ...
Page 338: ...332 AppendixB Probe Station Connection Kit Option 010 OPEN SHORT LOAD Calibration ...
Page 428: ...422 AppendixD Menu References Menu References ...
Page 482: ...476 AppendixI Messages Wait measuring comp standard ...