Revidiran
Covers the definitions, the conditions and the methods of measurement used to ascertain the performance of transmitters having audio-frequency bandwidths generally not exceeding 10 kHz for the transmission of voice and other types of signals, using single-sideband amplitude modulation with full, reduced or suppressed carrier. This standard is intended to be used in conjunction with IEC 489-1.
POVUČEN
IEC 60489-4:1980 ED1
99.60
Povlačenje stupilo na snagu
19. 11. 2016.
POVUČEN
IEC 60489-4:1980/AMD1:1983 ED1
OBJAVLJEN
IEC 60489-4:1991 ED2