mohamed irfan m

A typical R&S®EM200 application is primary/secondary operation together with a wideband monitoring receiver like the R&S ESME (figure on left). If, for example, the R&S®ESME detects an interesting emission, the pertinent frequency range can be transferred to a connected R&S®EM200 for permanent monitoring and precise analysis. Like any Rohde Schwarz radio monitoring receiver, the R&S EM200 can be used for direction finding tasks, for instance as a single-channel direction finder in combination with a vehicle roof antenna or as a component in a large-scale radiolocation system. It can use the angle of arrival method, the time difference of arrival method or a hybrid approach. Since it is a system instrument, the R&S EM200 is designed for easy integration into receiver networks that are managed using software such as R&S RAMON and R&S ARGUS. Precise timestamps for each data packet facilitate correlation with data from other receivers in the network. Regulatory authorities want to know at all times what is going on in the spectrum, whether interference is occurring and whether all transmitters are complying with license terms. Their task is made more difficult by the fact that a wide range of radio technologies are intensively using all available frequencies. The new R&S®EM200 digital compact receiver helps them maintain an overview, either as a standalone instrument for stationary or (vehicle) mobile use, but especially as a component in large monitoring and direction finding systems. The ½19" wide receiver scans the range between 8 kHz and 8 GHz at up to 40 GHz/s and does not miss any spectral event within its 40 MHz real-time bandwidth. This focal area, in which time domain analysis is also possible, can be output as an I/Q data stream via the optional 10 G bit interface, analyzed online on a connected PC using the R&S CA100 software or recorded for later evaluation, for example with the R&S DWR100 I/Q recorder.