DIN EN 62037-1:2013-01

The standards of the IEC 62037 series describe the measurement of the passive intermodulation level. This standard specifies the general requirements and measuring methods for the intermodulation level measurement of passive RF and microwave components, which can be caused by the presence of two or more transmitting signals. The level of unwanted IM signals is characterised through the described test methods using two transmitting signals. The passive intermodulation level is caused by sources of non-linearity of mostly unknown nature, location and behaviour. A few examples are inter-metallic contacts, choice of materials, corrosion products, dirt, etcetera. Most of these effects are subject to changes over time due to mechanical stress, temperature changes, variations in material characteristics (cold flow, etcetera), climatic changes and so on. The responsible committee is DKE/K 412 "Kommunikationskabel (Kabel, Leitungen, Wellenleiter, Lichtwellenleiter, Komponenten, Zubehör und Anlagentechnik für die Nachrichten- und Informationsübertragung)" ("Communication cables (Cables, wires, waveguides, fibre optics, components, equipment and installation technology for the transmission of news and information)") of the DKE (German Commission for Electrical, Electronic and Information Technologies) at DIN and VDE.