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EMF question

  1. Mar 23, 2008 #1
    Can anyone tell me which sort of energy or frequency is able to create a change in electronic appliances… such as thermostats and TV’s etc?
     
  2. jcsd
  3. Mar 25, 2008 #2
    Federal Communications Commission

    You'll often see on any digital apparatus a quote from Part 15 of the FCC rules: "(1) This device may not cause harmful interference, and (2) This device must accept any interference received, including interference that may cause undesired operation." I think the answer to your question is through this.

    The FCC was started in 1934 to regulate all non-governmental use of communications and use of the radio spectrum. "Title 47 CFR Part 15" as it is officially called, looks mostly as unlicensed transmissions. I think this is your best bet.

    Here are a few pointers.

    http://www.fcc.gov/mb/facts/index.html
    http://en.wikipedia.org/wiki/Part_15_(FCC_rules)

    Be safe

    Alexandre Colavin
     
  4. Mar 25, 2008 #3
    This is a bit vauge since you're unclear about what kind of changes you're interested in. Of you took a magnet and placed it on the TV screen of a picture tube (not a plasma or LED display though) then you will see the colors become distorted. In this case the frequency is zero.

    Note: Please use caution when placing the magnet on the screen. If it is there too long or is done too often then it can permantly distort the image.

    Pete
     
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