Connect antenna directly to audio line-in?
Ok, here’s the deal. I want to collect noise. Pure, unadulterated noise, meaning I do /not/ have any desire to tune the Radio signals being received, or actually convert them into real audio.
All I want to do is receive radio waves with an antenna and feed the raw radio signals into the line-in audio jack on my computer (effectively just acting as an analog-to-digital converter). So is this possible?
I mean, if I just plug a long audio cable into the line-in jack, and maybe terminate it with like 50 or 75 ohms, I should get something, right?
Thanks for any help or advice.
Thanks for the response. I’m not associating RF with audio noise, I’m looking for noise as in random data, and radio seems like a good place to get that. So the signal would be overwhelmingly 60Hz? I could notch filter than pretty easily, right? Even digitally, and then have something like radio noise?
Just like your ear, your audio line in can only respond to the frequency limits set by the systems, i.e. audio frequency ranges. So if you place a big horn to receive more sound and the sound is a dog whistle, you will still not hear the dog whistle because it is out of your hearing range. So putting a giant antenna into the audio line in will get you more RF noises, but it can’t “hear” it.
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