5.2 Operating region curves for Agilent Acqiris digitizers

Several interrelated characteristics of both the Acqiris digitizers and the 89600 VSA software combine to form a region within which the VSA is constrained to operate. The 89600 VSA software characteristics that affect this operating region include maximum number of time points, the minimum number of time points (not user settable), a maximum acquisition record size (not user settable) and a maximum decimation factor (not user settable). The Digitizer characteristics that affect the operating region are sample rate and memory depth. This section describes the effects each of these parameters has on the VSA operating region.

The operating region is described in terms of span and time record length. For a given window type it could just as easily be described in terms of span and RBW. Figure 3 shows the effects of the number of time points the 89600 VSA software is allowed to collect. Because sample spacing is inversely proportional to span, the record length decreases as span increases. Although a family of lines is shown, only two define the operating region at any one time. The lowest line gives the smallest time record length allowed for any given span. The position of this line is determined by minimum number of time points (16) the VSA requires in a time record. The line that defines the upper time record length boundary is positioned by the maximum number of time points the VSA allows in a time record . The maxi- mum number of time points is determined by the Frequency Points setting (Meas- Setup/ResBWFrequency Points). The 89600 VSA is constrained to operate in the region between these two lines. Note that the operating lines of Figure 3 are the same for all digitizer models.

Operating region: number of frequency points limits

 

1.E+01

 

 

 

 

 

 

 

 

 

 

1.E+00

 

 

 

 

 

 

 

 

 

 

1.E-01

 

 

 

 

 

 

 

 

 

(sec)

1.E-02

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Time record length

1.E-03

 

 

 

 

 

 

 

pointsfrequency ofNumber

 

 

 

 

 

 

 

 

409601

 

1.E-04

 

 

 

 

 

 

204801

 

 

 

 

 

 

 

 

102401

 

 

 

 

 

 

 

 

51201

 

1.E-05

 

 

 

 

 

 

25601

 

 

 

 

 

 

 

12801

 

 

 

 

 

 

 

 

6401

 

1.E-06

 

 

 

 

 

 

3201

 

 

 

 

 

 

 

1601

 

 

 

 

 

 

 

 

801

 

 

 

 

 

 

 

 

401

 

 

1.E-07

 

 

 

 

 

 

201

 

 

 

 

 

 

 

 

 

 

 

 

 

1.E-08

 

 

 

 

 

 

Minimum

 

 

 

 

 

 

 

 

 

 

 

 

1.E+02

1.E+03

1.E+04

1.E+05

1.E+06

1.E+07

1.E+08

1.E+09

1.E+10

1.E+11

Span (Hz)

Figure 3. The user-settable parameter, frequency points, begins to determine the boundaries of the time record length and frequency span operating region

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Agilent Technologies 89600 manual Operating region curves for Agilent Acqiris digitizers
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89600 specifications

Agilent Technologies, a leading player in the test and measurement sector, has developed the 89600 VSA (Vector Signal Analysis) software, a powerful tool designed for a wide variety of signal analysis applications. This software is crucial for engineers and researchers developing and testing wireless communication systems, radar technologies, and other complex signal environments.

One of the main features of the Agilent 89600 is its capability to analyze both analog and digital signals with high precision and flexibility. It supports a broad range of modulation formats used in modern communication systems, including LTE, Wi-Fi, GSM, and many others. This extensive modulation support enables users to test their designs against industry standards and protocols, ensuring compliance and operational integrity.

The 89600 VSA software excels in its real-time analysis capabilities, which is critical for evaluating transient signal behavior and understanding time-varying signals. With its advanced algorithms and fast processing capabilities, users can perform real-time demodulation of complex signals, which is vital for debugging and optimizing communication systems. The software also supports offline analysis, allowing engineers to capture and analyze signals at their convenience.

Another standout characteristic of the 89600 software is its intuitive user interface, which streamlines the setup process and enhances user experience. The drag-and-drop functionality allows for easy configuration of measurement setups, while comprehensive visualization tools provide deep insights into the signal characteristics. Users can visualize modulation quality, spectral components, and error vectors through various graphical representations.

The software integrates seamlessly with Agilent's hardware spectrum analyzers and signal generators, offering a holistic solution for signal generation and analysis. It also supports a wide range of signal inputs, from hardware-based vector signal generators to recorded data files.

Moreover, the flexibility of the Agilent 89600 is enhanced through its modular architecture, which allows users to easily add new measurement capabilities via optional software packages. This adaptability ensures that the tool stays relevant as communication technologies evolve.

In summary, Agilent Technologies' 89600 VSA software combines advanced signal analysis capabilities with user-friendly features to provide a comprehensive solution for communication engineers. Its ability to handle multiple modulation formats, real-time analysis, and robust visualization tools makes it an essential resource for anyone involved in the development and testing of signal-based technologies.
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