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PXIe-5665 Calibration Procedure
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© National Instruments
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System Options
The PXIe-5665 is available with options without certain features. The calibration procedure
must be modified to handle the following options:
•
No preamplifier: Skip steps in the verification procedures that call for the preamplifier to
be enabled.
•
25 MHz instantaneous bandwidth: Verification procedures include any changes necessary
to accommodate this option. There are no changes to the PXIe-5665 specifications for this
digitizer option.
Initial Setup
Refer to the
NI PXIe-5665 RF Vector Signal Analyzer Getting Started Guide
for information
about how to install the software and hardware and how to configure the device in Measurement
& Automation Explorer (MAX).
Characterizing the Test System
You use the measured response of the test system during verification tests.
The power splitter and attenuation response is measured at the RF input frequencies used in the
verification tests.
Caution
The connectors on the device under test (DUT) and test equipment are
fragile. Perform the steps in these procedures with great care to prevent damaging any
DUTs or test equipment.
Zeroing and Calibrating the Power Sensor
1.
Connect channel A of the power meter to power sensor A.
2.
Connect channel B of the power meter to power sensor B.
3.
Zero and calibrate the power sensors using the built-in functions in the power meter.
Characterizing Power Splitter Reference Output
Designate either of the two outputs of the power splitter as the reference output. This output must
be consistently used as the reference output throughout the characterization and verification
procedures.