Measurement Theory

Introduction

Introduction

This chapter describes which blocks of the instrument are used in the various measurements. The measurements described include the following:

•BIT ERROR

•DSP ANL

•OUT RF SP

•PULSE

•CW MEAS/AF ANL

•SCOPE

•SPEC ANL

The descriptions are given in terms of which path the signal under test takes from the front panel to the measurement point. This chapter does not describe how a radio under test is stimulated to output the signals that are being measured.

BIT ERROR

•A23 Input

•A11 Receiver Mixer

•A16 Receiver

•A9 Global Test and Demod

•A31 CODEC

The bit error test is a test where a known data pattern is sent to the radio under test and is looped back to measure how many errors are generated by the radio under test through receiving and transmitting the same data. The Bit Error test signal is routed through the front-panel and through the RF hardware. The signal is demodulated at the A9 Global Test and Demod assembly. After the signal is demodulated the recovered clock and data signals are routed to the A31 CODEC assembly. The A31 CODEC assembly both generates the test data pattern and does the comparison after the data is recovered after being transmitted and received. After the measurement is done the measurement numbers are sent to the A7 controller to be sent to the display section.

16-2

Page 229 Page 231
Page 230
Image 230
Agilent Technologies 8922 manual BIT Error, A31 Codec
Page 229 Page 231

8922 specifications

Agilent Technologies 8922 is a versatile and robust mobile communication test set, designed to fulfill the demanding requirements of wireless device manufacturers and service providers. Primarily focused on mobile radio communications, the 8922 provides a comprehensive solution for testing a wide array of signaling standards and technologies, making it essential in the rapidly evolving telecommunications landscape.

One of the standout features of the Agilent 8922 is its support for multiple wireless standards, including GSM, GPRS, EDGE, WCDMA, and HSPA. This makes the device an ideal choice for testing mobile devices that operate on different generations of cellular networks. Additionally, the 8922 is equipped with advanced measurement capabilities, allowing users to perform key performance indicators assessments, such as power, modulation quality, and spectral emission analysis, ensuring devices meet stringent regulatory and performance standards.

The 8922 is designed with an intuitive user interface that simplifies the setup and execution of tests. It features a large color display, making it easier for users to view test results and navigate through various functions. The built-in automation capabilities enable seamless integration into production environments, where efficiency and repeatability are crucial for high-volume testing.

Technologically, the Agilent 8922 incorporates advanced signal processing algorithms, which enhance its measurement accuracy and speed. The device's architecture allows for real-time analysis of signals, enabling users to identify issues quickly and efficiently. This is particularly important in the realm of mobile communications, where time-to-market is critical for competitive advantage.

Another significant characteristic of the 8922 is its flexible configuration options. Users can customize the test set with different hardware and software modules to suit specific testing needs. This scalability ensures that the 8922 remains relevant as wireless technologies evolve and new standards emerge.

In conclusion, the Agilent Technologies 8922 is an indispensable tool for professionals engaged in the testing of mobile communications devices. Its broad support for multiple standards, advanced measurement capabilities, user-friendly design, and flexibility make it a top choice in the telecommunications testing community. As the mobile communication industry continues to advance, the 8922 stands out as a leading solution for ensuring that devices meet quality and performance expectations.
Top Page Image Contents