Remote control of the PROTEK 3201N spectrum analyzer to solve radiomonitoring tasks

Abstract

Electrical measuring instruments related to spectrum analyzers allow you to quickly obtain information about the distribution of energy of electrical and electromagnetic signals in a certain frequency band. The range of signal frequencies that can be measured by spectrum analyzers depends on the specific instrument model. Extending the signal frequency range measured by the spectrum analyzer increases its cost. But depending on the signal processing algorithm, spectrum analyzers with the same frequency range can also vary significantly in cost. The PROTEK3201N spectrum analyzer considered in this article costs around 50,000 rubles, while the similar GW Instek GSP-7730 spectrum analyzer costs about 150,000 rubles. Given the range of prices, the PROTEK3201N spectrum analyzer can be considered as the best option for implementing a system for measuring the parameters of high-frequency electrical and electromagnetic signals. One of the areas of application of this equipment is radio monitoring within the controlled area. Radio monitoring is understood as a set of measures to determine the frequency and level of electromagnetic signals, and their identification. The essence of identification is to determine whether the detected electromagnetic signals belong to a regular radio transmitter or a device that performs unauthorized removal of information from a con-trolled area. One of the possible identification methods is a detailed analysis of the electromagnetic signal spectrum shape. This can be achieved by changing the scanning step of the frequency range by the radio receiver. It is spectrum analyzers that have the most developed functionality for changing the scanning step without changing the frequency range in which radiomonitoring is performed.