NI 5412 Calibration Procedure
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© National Instruments
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5
Test Conditions
Follow these guidelines to optimize the connections and the environment during calibration:
•
Keep connections to the NI 5412 short.
•
Keep relative humidity below 80%.
•
Maintain a temperature between 18 °C and 28 °C.
•
Observe the 15 minute warm-up time.
Self-Calibration Procedures
The NI 5412 can perform self-calibration, which adjusts the gain and offset of the main analog
path. Self-calibration uses only an onboard ADC to measure the output voltage. You can
implement self-calibration on the NI 5412 by following procedures similar to the
and the
procedures. However, output
impedance, oscillator frequency, and the calibration ADC are not adjusted during
self-calibration.
You can initiate self-calibration interactively from Measurement & Automation Explorer
(MAX) or from the FGEN Soft Front Panel (SFP). Alternatively, you can initiate self-calibration
programmatically using NI-FGEN.
Spectrum analyzer,
frequency meter, or
signal source analyzer
Frequency
accuracy
Ability to measure
10 MHz or greater
sine waves
Frequency accuracy
to ≤500 ppb
NI PXI-5660
Agilent HP 8560E
Agilent
HP 53131A or
HP 53132A
with timebase
option 001, 010, or
012
Rohde & Schwarz
(R&S) FSUP
BNC(m)-to-SMB(f)
cable
50 Ω, RG-223
—
Power meter/sensor
Frequency
response
(flatness)
VSWR: (50 kHz to
120 MHz) ≤ 1.11
Relative power
accuracy: ≤ 0.022 dB
R&S NRP-Z91
Type N(f)-to-SMB
plug adapter
VSWR: 1.3
Pasternak PE9316
Table 2.
Equipment Required for Calibrating the NI 5412 (Continued)
Instrument
Applicable
Specification
Minimum
Specifications
Recommended
Instrument
