PXIe-5673 Calibration Procedure
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© National Instruments
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If the results are within the selected limit, the device has passed this portion of the verification.
Verifying Single Sideband Phase Noise at 10 kHz Offset
Complete the following steps to verify the single sideband (SSB) phase noise of the PXIe-5673
using a spectrum analyzer.
1.
Connect the PXIe-5611 RF OUT front panel connector to the spectrum analyzer RF INPUT
front panel connector through the SMA(m)-to-SMA(m) cable.
2.
Connect the PXIe-5450 CLK IN front panel connector to any rubidium frequency reference
rear panel BNC connector through the BNC(m)-to-SMA(m) cable.
3.
Connect the PXIe-5450 CLK OUT front panel connector to the PXI-5650/5651/5652
REF IN/OUT front panel connector.
4.
Connect any available rubidium frequency reference rear panel BNC connector to the
spectrum analyzer REF IN rear panel connector through the BNC(m)-to-BNC(m) cable.
5.
Generate a single-sideband tone with a +3 MHz offset from the carrier signal with the
following niRFSG property settings:
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Frequency (Hz): 1 GHz
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Power Level (dBm): 0 dBm
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Generation Mode: Arb Waveform
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Reference Clock Source: ClkIn
6.
Use the spectrum analyzer to measure the maximum power within the configured span of
the spectrum analyzer using the following spectrum analyzer parameter settings and record
the value:
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Center frequency: (Frequency in step 5) + 3 MHz
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Reference level: 0 dBm
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Frequency span: 100 Hz
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Resolution bandwidth: 10 Hz
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Reference clock source: External
Table 12.
Baseband Linearity-Spurs Verification Upper Test Limits
CW Source
LO Frequency
Test Limit (dBc)
PXI-5650/5651/5652
85 MHz to 250 MHz
-45
>250 MHz to 1.3 GHz
-50
PXI-5651/5652
>1.3 GHz to 3.3 GHz
-50
PXI-5652
>3.3 GHz to 6.6 GHz
-50
