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They say that if you plug unused ports, the sound will tear off your ports. Or something. So I decided to check it out, and at the same time check out a video that hangs on the Cardass channel. A video in which magical anti-noise plugs reduce the level of the oscilloscope's own noise. And all this with the substantive support of the guys from Warsaw's Hacker Space. They helped me not only to recreate the measurements taken by Cardass, but also lent me an extremely noisy electromagnetic space. I tested the Cardass Noise dust Stopper and Audiophile Rocks Termino. And watch out! It works! Seriously, seriously. It's just a matter of scale. But more on that in the video! PS If you liked it, you can support me at https://buycoffee.to/tonskladowy And the text version can be found at https://tonskladowy.pl/artykuly/zasle... 00:00:00 intro 00:00:47 Noise plugs on forums 00:02:53 How does it work? 00:03:48 Proof that Cardass caps work 00:04:22 What's wrong with this proof? 00:05:20 Types of noise plugs 00:07:56 Warsaw Hackerspace 00:09:22 Measurement equipment settings 00:11:51 Cardass Noise Caps - measurement 00:12:40 Audiophile Rocks Termino - measurement 00:14:24 We generate additional noise 00:15:25 It works! 00:17:00 This doesn't work though! 00:17:32 Measurements over time 00:19:24 Audiophile Rocks Termino - measurement over time 00:19:50 What level are we talking about? 00:20:20 Measurement summary