Using Corrections/De-Embedding; Using A Spectrum Analyzer To Make The Corrections Measurement - Keysight M9383B Measurement Manual

Basic Measurements
Making Measurements

Using Corrections/De-embedding

De-embedding is used to remove the effects of the test fixtures, including
cabling from the measurement results. De-embedding uses a model of the test
fixture and mathematically removes the fixture characteristics (cables,
connectors and other passive components) between the source and the device
under test (DUT). Once the desired topology has been characterized, its effects
can be removed from the output signal, moving the effective reference plane to
the point at which the power sensor was connected.
Blocks can be added from supported file formats (.s2p, .csv, .uflat) or by direct
measurement, using one of the supported power sensors (power meter,
spectrum analyzer, or a network analyzer).

Using a Spectrum Analyzer to Make the Corrections Measurement

When using a spectrum analyzer, it must be locked to the VXG Frequency
Reference. This is important because the power measurement can be
inaccurate due to a narrow resolution bandwidth (RBW) used in the spectrum
analyzer. Supported Keysight X-Series signal analyzers are:
— N9000A/B CXA
— N9010A/B EXA
— N9020A/B MXA
— N9030A/B PXA
— N9040B and N9041B UXA
— M90XA
Using the Graphical User Interface
On the VXG:
1. Connect the VXG 10 MHz Out to the N90x0A/B Ext Reference In.
2. Select Preset to set the instrument to a known state.
3. In the Output area, set the Power to the highest power level used in your
4. Select the RF Output block > Corrections/De-embedding block to open
M9383B/84B Measurement Guide
measurement.
the Correction Setup.
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