EVS-EN 60728-4:2008

This part of IEC 60728 applies to system outlets, splitters and taps, passive single or multiple port equipment comprising filters, attenuators, equalizers, galvanic isolators, power injectors, cable splices, terminating resistors and transfer points, but excluding coaxial cables and receiver leads (see 5.2). This standard •  covers the frequency range 5 MHz to 3 000 MHz; •  identifies performance requirements for certain parameters; •  lays down data publication requirements for certain parameters; •  stipulates methods of measurements; •  introduces minimum requirements defining quality grades. There are three grades for all passive equipment except system outlets where there is only one.