A Wireless Spectrum Analyzer can be described as a frequency-selective, peak-responding voltmeter adjusted to display the rms value of a sine wave. It can be used to display power directly but cannot be used as a power meter. This can only be done as long as we know some value of the sine wave and the resistance across which we measure this value, only then one can calibrate the Wireless Spectrum Analyzer to indicate power. Here is a study of the fundamentals of Wireless Spectrum Analyzer:
When people find themselves in the need of a Wireless Spectrum Analyzer, they are not always confident in the area to actually know where to start looking. Specific items like this are not on everyone’s radar which is why there is limited buyer knowledge at times. However, the information about things such as a spectrum analyzer can be found online and there are several excellent companies that offer not only the production of these devices, but also distribution and advice when it might seem necessary.