•
Fast Fourier transform (FFT) mode with Blackman-Harris window
•
Measurement span from 100 Hz to 1 MHz (offset frequencies)
4.
Use the signal source analyzer to perform a manual frequency sweep at the settings listed
in the following table.
Table 3. RF OUT Manual Sweep Settings
Carrier Frequency Offset
Resolution Bandwidth
Cross Correlation
100 Hz to 300 Hz
10 Hz
100
300 Hz to 1 kHz
30 Hz
1,000
1 kHz to 3 kHz
100 Hz
10,000
3 kHz to 10 kHz
300 Hz
10,000
10 kHz to 30 kHz
1 kHz
10,000
30 kHz to 100 kHz
1 kHz
5,000
100 kHz to 300 kHz
3 kHz
1,000
300 kHz to 1 MHz
10 kHz
1,000
5.
Configure the PXIe-5654 using the following settings:
•
Frequency: 500 MHz
•
Power Level: +8 dBm
6.
Commit the settings to hardware if this is the first iteration of running this procedure;
otherwise skip to step 9.
7.
Initiate signal generation.
8.
Enable the RF output.
9.
Set the signal source analyzer center frequency to 500 MHz if the signal source analyzer
does not automatically center for phase noise measurements.
10. Check the signal generation status and verify that there are no reported errors or
warnings.
11. Measure the phase noise using the signal source analyzer for every offset value in the
following table. Record the measurements.
12. Ensure that the recorded measurements are within the limits set in the following tables.
Table 4. RF OUT Phase Noise (dBc/Hz) As-Found Limits
Offset
Carrier Frequency
500 MHz
1 GHz
5 GHz
10 GHz
20 GHz
100 Hz
≤-107
≤-101
≤-87
≤-81
≤-75
1 kHz
≤-127
≤-121
≤-109
≤-103
≤-97
10 kHz
≤-135
≤-130
≤-120
≤-114
≤-108
18
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PXIe-5654 Calibration Procedure
