kevroy
Junior Member level 2
Hey guys,
I need to trigger a transistor circuit, which in turn will activate a recording circuit to record audio from a "double male ended headphone jack". I need the head phone jack to trigger the circuit when there is sound on it. It will be used with a two-way radio to make a simplex repeater. A radio will be waiting for a message, and when the radio picks up a message from another radio, this will activate the recording circuit, recording the message and then de-activating the recording command, and spitting the message back out over the transmit function of the radio. I have a schematic of the recording circuit, i just need to know how to trigger it.
Thanks
I need to trigger a transistor circuit, which in turn will activate a recording circuit to record audio from a "double male ended headphone jack". I need the head phone jack to trigger the circuit when there is sound on it. It will be used with a two-way radio to make a simplex repeater. A radio will be waiting for a message, and when the radio picks up a message from another radio, this will activate the recording circuit, recording the message and then de-activating the recording command, and spitting the message back out over the transmit function of the radio. I have a schematic of the recording circuit, i just need to know how to trigger it.
Thanks