0495900.ZXA

0495900.ZXA Application Field and Working Principle

0495900.ZXA is an apparatus for measuring conducted interference in precision test and measurement applications, such as mobile and cordless telephones. It is regularly used in commercial and industrial environments, including data centers, wireless networks, and telecommunications systems.

The 0495900.ZXA utilizes an AC bridge circuit to detect low-frequency AC signals in range between 150kHz and 4.8GHz. The apparatus consists of a power supply, signal generator, detector, variable attenuator, phase-locked loop, variable phase shifter, and AC reference bridge.

The power supply provides operating power to the circuitry. The signal generator delivers an AC signal with an adjustable level and frequency which is based on the user-selected frequency range. The detector is used to detect the AC signal.

The variable attenuator is used to control the signal level or attenuate unwanted signals. The phase-locked loop removes unwanted signal components and enables the user to maintain a constant phase relationship between the signal source and the signal generator or detector.

The variable phase shifter is used to steer the antenna towards the desired signal direction. The AC reference bridge measures the AC signal level. The bridge consists of two arms, one being the signal path and the other being a reference path.

The signal arm consists of two resistive elements that are matched as close as possible to create a matched pair. The reference arm also contains two resistive elements, which are identical to the ones in the signal arm. The bridge is then balanced by adjusting the two arms such that the voltage difference between them is zero.

The 0495900.ZXA can measure the conducted interference in an environment by first activating the signal generator, then sweeping the frequency range, and then measuring the AC signal level with the AC reference bridge. By repeating this process across the entire frequency range, a detailed picture of the conducted interference in the environment can be obtained.

In conclusion, the 0495900.ZXA is a precision test and measurement apparatus useful for measuring conducted interference in the frequency range from 150 Hertz to 4.8 gigahertz. It is composed of various components, each of which has its own functional tasks, and it utilizes an AC reference bridge for measuring AC signal levels.