Language Reference

SENSe Subsystem

Reference Oscillator Source

[:SENSe]:ROSCillator:SOURce INTernalEXTernal

[:SENSe]:ROSCillator:SOURce?

Select the reference oscillator (time base) source. Use ROSC:EXT:FREQ to tell the instrument the frequency of the external reference.

INTernal - uses internally generated 10 MHz reference signal

EXTernal - uses the signal at the rear panel external reference input port.

Preset

 

and *RST:

Persistent State with factory default of Internal

Remarks:

Global to system.

Front Panel

 

Access:

System, Reference, Ref Oscillator

Spectrum (Frequency-Domain) Measurement

Commands for querying the spectrum measurement results and for setting to the default values are found in the “MEASure Group of Commands” on page 255. The equivalent front panel keys for the parameters described in the following commands, are found under the Meas Setup key, after the Spectrum (Freq Domain) measurement has been selected from the MEASURE key menu.

Spectrum—Data Acquisition Packing

[:SENSe]:SPECtrum:ACQuisition:PACKing

AUTOLONGMEDiumSHORt

[:SENSe]:SPECtrum:ACQuisition:PACKing?

Select the amount of data acquisition packing. This is an advanced control that normally does not need to be changed.

Factory Preset

 

and *RST:

AUTO

Remarks:

To use this command, the appropriate mode should be

 

selected with INSTrument:SELect.

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Chapter 5

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Image 346
Agilent Technologies E4406A VSA manual Spectrum Frequency-Domain Measurement, Reference Oscillator Source
Page 345 Page 347

E4406A VSA specifications

The Agilent Technologies E4406A Vector Signal Analyzer (VSA) is a sophisticated instrument designed for the analysis of complex signals. This versatile device is widely used in various fields, including telecommunications, broadcasting, and aerospace, thanks to its high-performance capabilities and advanced features.

One of the standout characteristics of the E4406A is its ability to analyze digital modulation schemes. It supports a wide range of formats, including 2G, 3G, 4G, and emerging standards, providing a comprehensive tool for engineers and researchers working with modern communication systems. The VSA is particularly valued for its flexibility in signal analysis, allowing users to capture and demodulate signals in real-time.

The E4406A utilizes advanced measurement technologies that ensure precise signal analysis. With a frequency range from 50 kHz to 6 GHz, the VSA can handle various applications, making it a suitable choice for both R&D and production testing. The instrument employs digital signal processing techniques, enabling high-resolution measurements and exceptional dynamic range. This ensures accurate interpretation of signals, even in the presence of noise or interference.

Another significant feature of the E4406A is its user-friendly interface. The combination of a graphical display and intuitive controls allows users to visualize complex waveforms and spectra easily. The software capabilities of the E4406A further enhance its usability, providing various analysis options including error vector magnitude (EVM), adjacent channel power (ACP), and spectrum occupancy. These tools allow engineers to diagnose issues rapidly and efficiently optimize their designs.

The modularity of the E4406A is a key aspect of its design. Users can upgrade their instrument with various option packs and software for specific applications, making it adaptable to a variety of testing scenarios. This flexibility ensures that the VSA remains relevant as technology evolves and new standards emerge.

In conclusion, the Agilent E4406A Vector Signal Analyzer stands out due to its combination of advanced measurement capabilities, user-friendly interface, and adaptability. Its extensive feature set makes it an essential tool for professionals involved in the development and testing of modern communication systems. Whether for research, design validation, or quality control, the E4406A delivers high-performance signal analysis that meets the demands of today's fast-paced technology landscape.
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