Making Harmonic Measurements With The M9393A Vsa - Keysight Technologies M9393A Programming Manual

Making Harmonic Measurements with the M9393A VSA

Making harmonics and spurious measurements is a key application of the M9393A
Vector Signal Analyzer (VSA).
Spectrum Acquisition mode
Harmonic measurements are made in the Spectrum Acquisition mode, which
allows:
Considerations when making a harmonics measurement
Programming considerations
The following M9393A software drivers are used in constructing a program to make
a harmonics measurement:
IAgM9393
Apply
Arm
Initialize
RF
57
// Close the driver
VsaDriver.Close();
Console.WriteLine("VSA Driver
}
}
#endregion
Console.WriteLine("Done - Press Enter to
Console.ReadLine();
}
}
}
Setting specific Span and Resolution Bandwidth (RBW)
Averaging to "Time Peak" for peak detection
Noise Correction
Digital image rejection
Span and RBW: use specified values. Modulated signals measurements will
vary a large amount based on the value of the RBW.
Widow Type: typically use HDR Flat Top.
Averages: Set time required to achieve desired repeatability. Time for each
average is FFT Size / Sample Rate.
Overlap: Typically use 0.5.
Results: Array of power data in units of dBm. Start Frequency and Frequency
Delta between points in the array.
Keysight M9393A PXIe Performance Vector Signal Analyzer
Closed\n");
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