Vox Control

130

01:39:10

Este circuito pode ser usado para suprimir o press to talk em transmissores de PX ou UHF. Também pode acionar dispositivos remotos usando apenas o sinal de áudio, ou como links entre estações. O sinal de áudio enquanto existe, está sempre regatilhando o circuito mono estável. Quando o áudio cessa o mono estável completa o ciclo desativando a saída. É necessário colocar um receptor de rádio, ou outra fonte de áudio antes deste dispositivo.

published 6 years ago

Walton1951

6 years ago

Para press to talk ou outras finalidades usar um relé na saída do mono estável, substituindo o LED indicador.

Walton1951

6 years ago

This circuit can be used to suppress pressure to talk on PX or UHF transmitters. You can also trigger remote devices using only the audio signal, or as links between stations. The audio signal as it exists is always rewinding the stable mono circuit. When audio ceases stable mono completes the cycle by disabling the output. You must place a radio receiver or other audio source before this device.

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