| http://www.w3.org/ns/prov#value | - A radio broadcasting and relaying system including at one location, a transducer to' de velop a low frequency current corresponding. to a program, an oscillator tof produce ai high-1 freequency current, a modulatorv coupled to: said' oscillatorl and said transducer toy amplitude-- modulate said high frequency current by said low frequency current: to produce arr amplitude modulated wave and an ae
|
