Electronic and optical instruments, components, devices, and systems for telecommunication, in particular in military, energy and transportation industry, namely, high frequency modules and transceivers for wireless applications, Synchronous Digital Hierarchy (SDH) high linearity up-and-down converters, Synchronous Digital Hierarchy (SDH) high power transmitter modules, Synchronous Digital Hierarchy (SDH) and Plesiochronous Digital Hierarchy (PDH) equipment, namely, Synchronous Digital Hierar...