Block Diagram Theory of Operation

Block Diagram 5

Block Diagram 5

This block diagram illustrates the busses that interconnect the instrument controllers (A7 Controller, A32 GSM Controller, A34 GSM RTI, and A37 Sequence Controller) with the other assemblies. Chapter 5 “Troubleshooting the Controller/Display” contains information about troubleshooting and an explanation of the serial and parallel busses that interconnect the assemblies.

A19 Measurement

The A19 Measurement assembly contains the circuits necessary to measure voltage and count frequency. These circuits are interconnected throughout the instrument with a series of multiplexers. The measurement board also synchronizes the measurements for the spectrum analyzer and the oscilloscope display. The block diagram shows the pin numbers and signal names of most voltage and counter inputs to this assembly.

While there are no specific diagnostics for the A19 Measurement assembly, it is used extensively to diagnose other parts of the instrument. If the diagnostics incorrectly indicate a faulty assembly, the measurement board may be a likely cause. Use the pin number information to verify that the voltages and frequencies are properly transferred from the modules to the A19 Measurement assembly.

A33 Hop Controller

The A33 Hop Controller assembly controls the I/O to most analog and RF hardware in the instrument. Problems with this assembly will usually appear as multiple failures during the power up diagnostics (as indicated on the A7 LED’s). The A33 Hop Controller assembly communicates to the main controller (A7 Controller) with a parallel bus, and through a serial bus to the other analog hardware. This illustration is included with pin numbers to allow troubleshooting the serial busses and communication failures to the modules. Again, no specific memory card diagnostics exist for this module. It is unlikely that memory card programs could be executed if the A33 Hop Controller assembly is defective.

To understand more about the serial and parallel busses connected to the A33 Hop Controller assembly, refer to the chapter 5 discussion.

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Agilent Technologies 8922 manual A19 Measurement, A33 Hop Controller

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.