In line with their procurement guidelines, the Peruvian Ministry of Transportation and Communications (Ministerio des Transportes y Comunicaciones – MTC) commissioned Rohde & Schwarz to deliver and install a country-wide system for monitoring the frequency spectrum. A total of 30 stationary and mobile units are interconnected and used for frequency management throughout Peru.In 2015 and 2016, Rohde & Schwarz put one stationary, one mobile measurement and one direction finding system into operation in each of the 15 different cities throughout Peru. The MTC uses their equipment to regulate and monitor the frequency spectrum, specifically to ensure interference-free reception of radiocommunications services. This system is suitable for use in Peru’s different climate zones. It is used in areas ranging from the desert on the Pacific to the Andean highlands.The core of this new system is the compact R&S UMS300 monitoring and radiolocation system from their UMS family of universal monitoring systems. This system features a rugged housing for outdoor installation on the antenna mast, greatly increasing the sensitivity of the system. Installation on masts or rooftops also reduces infrastructure requirements. The stations are controlled using their ARGUS spectrum monitoring software, which supports various operating modes. It offers interactive operation or fully automatic test sequences and can be run in local mode or via remote control.Effective frequency management prevents or helps identify and eliminate interference in radiocommunications. This is achieved by monitoring the electromagnetic spectrum and locating the position of suspect signals. Rohde & Schwarz has been globally successful in the field of spectrum monitoring for decades. The company’s stationary and mobile system solutions enable regulatory authorities worldwide to perform their jobs. Their system solutions fulfill all of the relevant requirements and recommendations of the International Telecommunication Union (ITU) – the United Nations (UN) agency responsible for regulating the use of the frequency spectrum.