Audio Frequency Generators 1 | Agilent Technologies 8922 specification

Diagnostics Theory

AF_DIAGS

Audio Frequency Generators 1 and 2

This test checks the A6 Signaling Source/Analyzer assembly. As a test signal, a digital “1” exercises DACs on the output of the A6 Signaling Source/Analyzer assembly to verify voltage range, using the voltmeter at the LFS1_VM and LFS2_VM outputs.

Preliminary Audio Paths

This test checks the A4 Modulation Distribution assembly. The 9 possible paths through the A4 Modulation Distribution assembly are checked using signals from the A6 Signaling Source/Analyzer assembly, routing the signals to the voltmeter through the A3 Audio Analyzer 1 assembly at AUD1_VM, or the A2 Audio Analyzer 2 assembly at AUD2_VM, for path 9.

Modulation Distribution Internal Paths

This test checks the A4 Modulation Distribution assembly. Using the two inputs from the A6 Signaling Source/Analyzer assembly, the same paths as the Preliminary Audio Paths test are checked again. During the test the gain and attenuation of the paths are varied.

Modulation Distribution External Paths

This test checks the A4 Modulation Distribution assembly. Using the AFG1 output from the A6 Signaling Source/Analyzer assembly, the external MODULATION IN AM/ SPEECH path through the A4 Modulation Distribution assembly is checked. The AFG1 input is checked ﬁrst to verify that it can be used as a test signal. An external connection is used to route the AUDIO OUT connector on the front panel to the MODULATION IN AM/SPEECH connector. The gain and coupling of the path are varied. The signals are routed from the MOD_MON output of the A4 Modulation Distribution assembly to the A3 Audio Analyzer 1 assembly for routing to the voltmeter through the AUD1_VM output.

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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.

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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.

Agilent Technologies 8922 manual Audio Frequency Generators 1, Preliminary Audio Paths

Models: 8922