This section deals with baseband-to-baseband measurement for frequency division multiplex (f.d.m.) telephony. These measurement are additional to those already given in part 1, section four of this publication . Measurements in the baseband, which are coming to telephony and to television for example group-delay and amplitude/frequency characteristics.

• Year of Declaration: 1992
• Reference: IEC 60510-3-4
• Number of Pages: 43
• Code: GYS IEC 60410-4
• Version: First edition 1992
• ICS Number: 13.140 17.140.20