IEC 60728-4:2000 PDF

Scope: This part of IEC 60728 lays down the measuring methods, performance requirements and data publication requirements for passive coaxial wideband distribution equipment of cabled distribution systems for television and sound signals. In addition, it introduces minimum requirements defining quality (Q) grade(s). This standard applies to system outlets, splitters and subscriber taps, and passive one- and two-port devices comprising filters, attenuators, equalizers, galvanic isolators, power injectors, cable splices, terminating resistors and transfer points, but excluding coaxial cables. It covers the frequency range 5 MHz to 3 000 MHz. NOTE The upper limit of 3 000 MHz is an example but not a strict value. The frequency range or ranges over which the equipment is specified should be published. All requirements and published data are understood as guaranteed values within the specified frequency range and in well-matched conditions. For passive equipment of quality grades other than mentioned in the introduction, manufacturers should specify minimum values for - return loss, - isolation, - directivity, using the relevant measurement methods and the presentation of table 1.

IEC 60728-4:2000 history

2007 IEC 60728-4:2007 Cable networks for television signals, sound signals and interactive services - Part 4: Passive wideband equipment for coaxial cable networks (TA 5)
2000 IEC 60728-4:2000 Cabled distribution systems for television and sound signals - Part 4: Passive coaxial wideband distribution equipment
1997 IEC 60728-4:1997 Cabled distribution systems for television and sound signals - Part 4: Passive coaxial wideband distribution equipment