IEC 60728-3:2017 specifies the measuring methods, performance requirements and data publication requirements for active wideband equipment of cable networks for television signals, sound signals and interactive services. This fifth edition cancels and replaces the fourth edition published in 2010. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:a) extension of upper frequency range limit for cable network equipment in the forward path from 1a??000 MHz to 1a??218 MHz (optional up to 1-794 MHz);b) extension of upper frequency range limit for cable network equipment in the return path from 85 MHz to 204 MHz;c) integration and update of IEC 60728-3-1 content;d) integration and update of the Technical Specification CLC/TS 50083-3-3 content;e) deletion of specifications and test methods for obsolete analogue parameters;f) additional normative references;g) additional terms and definitions and abbreviations.