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Home Stereo , noise & static

Discussion in 'General Electronics Discussion' started by Localimport, Aug 24, 2016.

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  1. Localimport

    Localimport

    2
    0
    Aug 24, 2016
    When ever I place a power tool battery into the charger for charging ( somewhere in the house, this is a single family house ) or if I simply just turn on the DVD player ( from the same outlet as the stereo ) and the stereo is on the radio mode, the radio starts noise and static sound out of the speakers.
    As soon as I disconnect the battery charger or cut power from the DVD player, the radio sound clears up.
    This has been going on for too long, and it's time to clear it up.
     
  2. Gryd3

    Gryd3

    4,098
    875
    Jun 25, 2014
    Are those the only two devices *causing* static?
    This sounds most likely like a problem with the charger and dvd player causing interference. Clearing it up means ditching those devices, or spending time and money to rebuild/modify the device to reduce generated noise.

    Do you get static from any other device in the same outlet in the wall?
     
  3. Localimport

    Localimport

    2
    0
    Aug 24, 2016
    F
    Hi,
    Thank you for replying to my request.
    I am not at that house now , but I can do a check with other type of electrical products.
    Question : Is there a devise that can filter the AC powering the Home Stereo ?
    Thanks again
     
  4. Gryd3

    Gryd3

    4,098
    875
    Jun 25, 2014
    There certainly is. It's commonly called a 'line conditioner' and can be purchased in the A/V department in places like best-buy or from dedicated Audio-Video shops. Please be cautious though... you may be able to *feed* clean power to your radio, but the static may be caused either by dirty power, or dirty emissions.

    Emissions will be harder to resolve because they are being radiated away from the noise causing devices either directly or indirectly. If it's dirty power, a conditioner or possibly a ferrite choke on the power cable may help resolve the issue.
     
  5. shrtrnd

    shrtrnd

    3,744
    482
    Jan 15, 2010
    In your case, I'd try moving the battery charger away from you home electronics and to another outlet that wouldn't
    be on the same incoming power line. Gyrd3's advice is the best. I'm just offering an alternative, that I'd try (if for no
    other reason than to see if it solved the problem out of curiosity).
     
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