ITU-T G.441-1989 Permissible Circuit Noise on Frequency-Division Multiplex Radio-Relay Systems - International Analogue Carrier Systems (Study Group XV) 1 pp
Permissible Circuit Noise on Frequency-Division Multiplex Radio-Relay Systems - International Analogue Carrier Systems (Study Group XV) 1 pp
ITU-T G.441-1989 history
1989ITU-T G.441-1989 Permissible Circuit Noise on Frequency-Division Multiplex Radio-Relay Systems - International Analogue Carrier Systems (Study Group XV) 1 pp