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spectrum analyzer measures the magnitude of an input signal versus frequency within the full frequency range of the instrument. The primary use is to measure the power of the spectrum of known and unknown signals. The input signal a spectrum analyzer measures is electrical, however, spectral compositions of other signals, such as acoustic pressure waves and optical light waves, can be considered through the use of an appropriate transducer.

By analyzing the spectra of electrical signals, dominant frequencypowerdistortionharmonicsbandwidth, and other spectral components of a signal can be observed that are not easily detectable in time domain waveforms. These parameters are useful in the characterization of electronic devices, such as wireless transmitters.

The display of a spectrum analyzer has frequency on the horizontal axis and the amplitude displayed on the vertical axis. To the casual observer, a spectrum analyzer looks like an oscilloscope and, in fact, some lab instruments can function either as an oscilloscope or a spectrum analyzer.

~Wikipedia

Anritsu business expansion has occurred chiefly in the information and communication field. The company's flagship measuring instrument business provides products and services indispensable to the development, manufacture and maintenance of a range of communication systems as typified in mobile phones and the Internet on a global scale. In addition, Anritsu technologies have incorporated into a range of products in other fields, such as IP network equipment, inspection equipment for food and pharmaceutical products, and precision measuring instruments for electronic component.

 

With a foundation afforded by the "Measuring Technologies" accumulated over its history of more than 110 years, Anritsu will continue to contribute to the realization of a safe, secure and comfortable society.