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  1. #1
    us
    May 2007
    NH/MASS
    tesoro deleon whites idx pro
    69

    The FCC and Frequency

    I am just curious about the fcc regulations on frequency of metal detectors
    i dont know anything about this but have heard it mentioned in a few posts
    how high or low of a frequency isnt allowed in the U.S. the reason i ask is i am
    thinking about purchasing a new detector maybe one of the euro models such as the
    XP goldmaxx which runs at 18khz any help or info would be greatly appreciated

    thanks

  2. #2
    us
    Mar 2003
    Oregon
    V3i, TDI, GMT, Custom Designs
    943
    2 times
    All Types Of Treasure Hunting

    Re: The FCC and Frequency

    My understanding with XP detectors is that their wireless headphone circuitry is not FCC certified, therefore they can't sell to the US market. However, if you find a used one and no one is looking...

    Generally there are no detector frequency restrictions until you get up around 100kHz.

    - Carl

  3. #3
    us
    Jan 2009
    Amarillo
    Garrett GTI 2500
    456

    Re: The FCC and Frequency

    So if there were no FCC restrictions could US MD manufacturers use different frequency's that would actually make Md's better at detecting and IDing metal? Or can they already utilize the best possible frequency's and the FCC restrictions don't matter? Meaning simply, if the FCC dropped all frequency restrictions today would all the major manufacturers start coming out with new machines tomorrow?



    TG
    You can't find what you don't look for.

  4. #4
    us
    Mar 2003
    Oregon
    V3i, TDI, GMT, Custom Designs
    943
    2 times
    All Types Of Treasure Hunting

    Re: The FCC and Frequency

    Quote Originally Posted by Texasgopher
    So if there were no FCC restrictions could US MD manufacturers use different frequency's that would actually make Md's better at detecting and IDing metal? Or can they already utilize the best possible frequency's and the FCC restrictions don't matter? Meaning simply, if the FCC dropped all frequency restrictions today would all the major manufacturers start coming out with new machines tomorrow?
    Probably not, because the most practical frequencies for metal detection (below 100kHz) are already available. The problem with XP isn't with the detection frequency, rather the wireless headphones, which is an entirely different issue.

    - Carl

  5. #5
    us
    Jan 2009
    Amarillo
    Garrett GTI 2500
    456

    Re: The FCC and Frequency

    Gotcha, thanks for the reply.


    TG
    You can't find what you don't look for.

  6. #6
    us
    Mar 2010
    XLT , surfmaster PI , HAYS 2Box , VIBRA-TECTOR
    3,095
    16 times

    Re: The FCC and Frequency

    Its not just the frequency that is the problem, it might be the power output. Some low power stations are actually allowed to transmit in the normal radio frequency bands. A good example are those info. messages transmitted on the highway. They don't carry to far because of power output restructions. Maybe, as mentioned by other posts, the headphones exceed these limitations.

 

 

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