- #1
Landru
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- TL;DR Summary
- How does RFI, which is beyond the audible frequency range, manifest as noise within the audible range?
So I understand that grounded shielding of audio equipment is necessary to block both EMI and RFI from audio equipment, but what I can't find information about is how, for example, radio frequency interference "RFI" at 150kHz, can interfere with audio equipment in such a way that you will hear noise that is within the audible range of 20Hz to 20kHz. Can someone explain how the RFI which is beyond the range of human hearing, becomes a noise that is audible?