(Radio-Frequency Interference) RFI vs. EMI (ElectroMagnetic Interference)

Discussion in 'Pickups & Electronics [BG]' started by Killed_by_Death, Jul 26, 2019.

  1. Killed_by_Death

    Killed_by_Death Snaggletooth Inactive

    Radio Frequency is band-dependent, it's the range from 20 kHz to 300 GHz.
    A human ear can't even hear noise in the radio-frequency band.

    The majority of the noise we hear from the electromagnetic pickups in an instrument is EMI.
    Yes, there's a RF component, say for instance Wi-Fi, but that's not ALL of it.

    EMI encompasses all that noise, not just RFI.

    Electromagnetic interference - Wikipedia

    "Electromagnetic interference (EMI), also called radio-frequency interference (RFI) when in the radio frequency spectrum"

    EMI comes off of things like neon lights, the compressor from an air conditioner (or refrigerator), or even power lines.
    UMA1 likes this.
  2. PawleeP


    Oct 8, 2012
    East Coast
    or a cheesy dimmer running the studio lights. good call KBD!
    J-Bassomatic and Reedt2000 like this.
  3. bholder

    bholder Affable Sociopath Gold Supporting Member Supporting Member

    Sep 2, 2001
    Vestal, NY
    Received a gift from Sire* (see sig)
    I prefer my cheese undimmed anyways. :p
    J-Bassomatic and mikewalker like this.
  4. PawleeP


    Oct 8, 2012
    East Coast
    I reckon it could be 60hz hum due to grnd loop of lights on same breaker with pa power..
  5. lowplaces

    lowplaces Got Punch ?

    Dec 20, 2015
    Louisville Kentucky
    EMI can be used as an effect

    UMA1 and PawleeP like this.

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