Language Reference

 

SENSe Subsystem

Remarks:

With measurement type set at (TPR) total power

 

reference, 1.40 MHz is sometimes used. Using

 

1.23 MHz will give a power that is very nearly identical

 

to the 1.40 MHz value, and using 1.23 MHz will also

 

yield the correct power spectral density with

 

measurement type set at (PSD) reference. However, a

 

setting of 1.40 MHz will not give the correct results

 

with measurement type set at PSD reference.

 

You must be in Basic, cdmaOne, cdma2000, W-CDMA

 

(3GPP), W-CDMA (Trial & Arib), iDEN mode to use

 

this command. Use INSTrument:SELect to set the

 

mode.

Adjacent Channel Power—Dynamic Range

[:SENSe]:ACP:DYNamic[n]:RANGe[m] HIGHNORMalMODified

[:SENSe]:ACP:DYNamic[n]:RANGe[m]?

Select a dynamic range optimization.

High - chooses settings that provide better dynamic range (better signal to noise ratio) at the expense of longer measurement times. This is a better choice for CDMA signals with multiple carriers turned on at the same time.

Normal - lets the measurement automatically choose settings that trade off dynamic range for faster measurement speed. This is a good choice for making CDMA measurements on a signal with only one carrier turned on at a time.

Modified- is not a customer settable option. This choice is automatically selected depending on your selection of other related settings in the advanced measurement setup, like the number of FFT segments.

Dynamic[n] n=1 BTS, n=2 MS

Range[m] m=1 IS-95A, m=2 J-STD-008

–n=1, m=1 BTS and IS-95A

–n=1, m=2 BTS and J-STD-008

–n=2, m=1 MS and IS-95A

–n=2, m=1 MS and J-STD-008

Factory Preset

 

and *RST:

NORMal

Remarks:

You must be in the cdmaOne mode to use this

 

command. Use INSTrument:SELect to set the mode.

Chapter 5

289

Page 288 Page 290
Page 289
Image 289
Agilent Technologies E4406A VSA manual Adjacent Channel Power-Dynamic Range
Page 288 Page 290

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.
Top Page Image Contents