Model and device for measuring the parameters of the technological radio communication network in the “on-line” mode in the signaling and communication laboratory wagon

The goal of this work is the development of CDMA (Code Division Multiple Access) 450 mobile communications for installation and connection of a CDMA terminal apparatus to a fax machine and the operation of a DTU-450S modem. To achieve this goal, we considered the classification of radio stations, simplex linear radio networks PRS-S and duplex radio networks PRS-SZ, expansion of CDMA wireless access services, determined the characteristics of WLL CDMA radio access equipment, analyzed the energy balance of the uplink radio line, determined the features of the introduction of CDMA 450 equipment on iron Uzbekistan's railway, the installation of connecting the CDMA terminal apparatus to the facsimile apparatus was developed, the process of measuring and processing data by the wagon-laboratory was developed, the construction and implementation of the CDMA 450 MHz network were carried out, and recommendations were made for the modernization of the organization of the CDMA 450 MHz communication network on the <; <; Distance alarm and communication>> -1 section.