Guitar pickup noise/interference, how to eliminate?

Discussion in 'General Discussion' started by MC208, Aug 9, 2018.

  1. MC208

    MC208 Active Member

    Joined:
    Jan 10, 2016
    Location:
    Idaho
    Getting that noise from the guitar where when you touch the strings it stops, but also discovered that it only does it when the guitarist is holding the guitar in the playing position, i.e. the pickup is facing out away from the guitarist. Noticed that when we turn the guitar around so that the back is facing out, the noise stops. We're in a residential finished basement. I turned off what I thought would be all the possible sources of the interference but can't seem to figure out what's causing this. I ruled out any of the audio equipment because I plugged directly into the mixer and listened in the headphones. Any ideas or suggestions to find the source of the interference that causes the power hum?
     
  2. Kurt Foster

    Kurt Foster Distinguished Member

    Joined:
    Jul 2, 2002
    Location:
    77 Sunset Lane.
    single coil pups?
     
  3. MC208

    MC208 Active Member

    Joined:
    Jan 10, 2016
    Location:
    Idaho
    No, Kent Armstrong humbucker (Vintage 57 model)
     
  4. Kurt Foster

    Kurt Foster Distinguished Member

    Joined:
    Jul 2, 2002
    Location:
    77 Sunset Lane.
    do you have the same problem with other guitars?
     
  5. MC208

    MC208 Active Member

    Joined:
    Jan 10, 2016
    Location:
    Idaho
    Yes, tested with a solid body guitar too, same problem. It's not the guitar, or the guitar cable
     
  6. Kurt Foster

    Kurt Foster Distinguished Member

    Joined:
    Jul 2, 2002
    Location:
    77 Sunset Lane.
    try a grounding wrist strap.
     
    kmetal likes this.
  7. MC208

    MC208 Active Member

    Joined:
    Jan 10, 2016
    Location:
    Idaho
    Something like that would be visible I take it? That wouldn't be good for video (we're filming videos)
     
  8. Kurt Foster

    Kurt Foster Distinguished Member

    Joined:
    Jul 2, 2002
    Location:
    77 Sunset Lane.
    well then you have a serious RF problem in your studio. i don't think there's a fix other than to suss it out and address it. i've seen studios that actually installed Faraday cages to get rid of RF.

    @Davedog is an electrical-tishan guy. maybe he has an idea?

    often its the culmination of a number of things and not just one issue causing hum. wires gone loose at the wall connections, worn outlets, anything that could be arcing can cause hum. a bad transformer in the neighborhood could be the culprit. somemtimes a balanced power transformer will help but i bought on once and i still had to hire an electrician and call the power company to chase down all the problems.
     
    kmetal likes this.
  9. Boswell

    Boswell Moderator Distinguished Member

    Joined:
    Apr 19, 2006
    Location:
    UK
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    It's difficult to suggest things to try without hearing what it actually sounds like. Could you post a 10-second snippet using the Upload a File button at the lower right of the reply box?
     
    pcrecord likes this.
  10. kmetal

    kmetal Kyle P. Gushue Distinguished Member

    Joined:
    Jul 21, 2009
    Location:
    Boston, Massachusetts
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    Normandy is one of them, it is located within a couple of miles of a major top 40 radio station, pumping uber-watts through the airwaves.
     

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