CEI 555-3 : amendement 1
EN 60728-1 [documento electrónico] : cable networks for television signals, sound signals and interactive services: part 1: system performance of forward paths: (IEC 60728-1:2007) / European Committee for Electrotechnical Standardization
EN 60835-1-2/A1 : methods of measurements for equipment used in digital microwave radio transmission systems: part 1: measurements common to terrestrial radio-relay systems and satellite earth stations: section 2: basic characteristics: (IEC 835-1-2:1992/A1: 1995) / European Commitee for Electrothecnical Standardization
CEI 835-1-3 : amendement 1