F.392 FRENCH-1963 HYPOTHETICAL REFERENCE CIRCUIT FOR RADIO-RELAY SYSTEMS FOR TELEPHONY USING FREQUENCY-DIVISION MULTIPLEX WITH A CAPACITY OF MORE THAN 60 TELEPHONE CHANNELS
CIRCUIT FICTIF DE R?F?RENCE POUR FAISCEAUX HERTZIENS DE T?L?PHONIE A MULTIPLEXAGE PAR R?PARTITION EN FR?QUENCE AYANT UNE CAPACIT? SUP?RIEURE A 60 VOIES T?L?PHONIQUES
HYPOTHETICAL REFERENCE CIRCUIT FOR RADIO-RELAY SYSTEMS FOR TELEPHONY USING FREQUENCY-DIVISION MULTIPLEX WITH A CAPACITY OF MORE THAN 60 TELEPHONE CHANNELS 是非强制性国家标准,您可以免费下载前三页