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Thread: Decrease the waves

  1. #1
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    May 2021
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    Default Decrease the waves

    Hi, I have a pretty powerful fm transmitter. Luckily that whole “number” is not in use. Still I have a question can you weaken fm frequencies? I don’t think it is possible since the waves are so big, I don’t know

  2. #2
    Join Date
    Nov 2011
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    Default Re: Decrease the waves

    You can use an RF attenuator on the line between the transmitter and the antenna.

    https://www.jfwindustries.com/produc...-5-to-2-watts/

  3. #3
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    Feb 2018
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    Default Re: Decrease the waves

    I built my own PI-Network attenuator built to my own specs. Works great. But, I had most of the parts already. Here's a link to the discussion on this forum.
    http://doityourselfchristmas.com/for...hs-Attenuators

  4. #4
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    Default Re: Decrease the waves

    Thanks! I will try to do the math.

  5. #5
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    Feb 2018
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    Default Re: Decrease the waves

    Quote Originally Posted by Diyermaker View Post
    Thanks! I will try to do the math.
    Check post #6 in the forum link. There's a calculator that will help.

  6. #6
    Join Date
    Dec 2016
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    Anchorage, AK
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    Default Re: Decrease the waves

    It is good to stay "close to legal". I have been assigned to a FCC contract investigating interference here in Alaska. Cant wait to see the Suburban with all the gear. Would be interesting to check real world levels on the equipment I have used.

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