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Vox Recorder is a Windows utility that allows you to record audio sources only when an audio signal is present. Its main purpose is to avoid recording any silence that may be present at the input.
Vox Recorder was developed specifically for radio scanner enthusiasts. If you're one of them, you already know how time-consuming it is to listen to a new frequency: traffic on the new channel is very light, communication is brief, and there are long pauses in between.
With Vox Recorder, you can compress an entire day's monitoring...
This program descrambles band inverted encrypted transmissions, usually found on VHF/UHF. It uses a NCO (numerical controlled oscillator) to re-produce the originally inverted audio band. Use it only if legally permitted in your country. I assume no responsibilities deriving from its use. Standard disclaimer applies
PTT control via RS-232 serial port RTS/DTR control lines
Some radio transceiver models and CAT interfaces require special configuration for controlling PTT switch to enable RF transmission. In many cases, the RS-232 serial port RTS/DTR control lines control both the PTT switch and CW keying. The RTS control line usually controls PTT and the DTR control line controls CW keying, but it is necessary to check this from the radio or interface documentation.
In order to use an RS-232 serial port control line for controlling PTT, add...
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