Speakers picking up radio station

Discussion in 'Mac Accessories' started by Macnator, Oct 12, 2010.

  1. Macnator macrumors 6502

    Joined:
    Jan 25, 2008
    Location:
    Canada
    #1
    So today I noticed a very faint song playing on my computer, and confirmed it wasn't anything I was playing. I am picking up a local radio station, I confirmed that because the radio host said the station name which is our local station. I can hear it when I crank the volume all the way up, but the signal is very quiet and has a bit of static.

    I have the Logitech Z4i speakers, and I can hear it through the speakers, or with my headphones connected to the remote control for the speakers which has a headphone jack. I unplugged the speakers and listened through my iMac's speakers, and can confirm that it doesn't happen through them, so it's the speakers.

    Is there anyway to fix this? I read that this happens because the power cable isn't grounded (and or the speakers have lousy shielding), which it isn't, it's just a regular two prong cord. Do I need to get new speakers with better shielding/a grounded power cord?

    Thanks for you help. I've never had this happen before so I'm a bit confused.
     
  2. rekhyt macrumors 65816

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    Jun 20, 2008
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    Part of the old MR guard.
  3. John T macrumors 68020

    John T

    Joined:
    Mar 18, 2006
    Location:
    UK.
    #3
    Sound s like a typical case of RFI. This is being picked up by the active speakers wiring - particularly the mains supply lead.

    This can be tricky to rectify. Usual cure is to use an RFI rejecting mains filter or mains cable such as Kimber.
     
  4. flopticalcube macrumors G4

    flopticalcube

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    Location:
    In the velcro closure of America's Hat
    #4
  5. pellets007 macrumors 6502a

    pellets007

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    Location:
    New York
    #5
  6. Macnator thread starter macrumors 6502

    Joined:
    Jan 25, 2008
    Location:
    Canada
    #6
    Alright I'll get some of those soon. I hope it works. :D

    Speaking of GSM buzz, do you mean that when you have a GSM phone near your speakers, they kind of buzz/get static and the sound kind of has a tapping-esque pattern/sound to it? If that makes sense?

    Sometimes I hear a da-duh-da-duh-daaaaaa-duh sound through my speakers, and I've always assumed it was my iPhone causing it. My iPhone is always very close to my speakers.
     

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