
Specification and measuring method of frequency-modulated voice-frequency telegraph set for a modulation rate of 75 Bauds with channels spaced at 180 Hz
NORMA vydána dne 12.11.1985
Designation standards: GB/T 5581-1985
Note: NEPLATNÁ
Publication date standards: 12.11.1985
Country: Chinese technical standard
Kategorie: Technické normy GB