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MFJ-1025

Discussion in 'Ham Equipment' started by wa373, Dec 3, 2019.

  1. wa373

    wa373 New Member

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    Do noise canceling devices like the MFJ-1025 reduce atmospheric noise or are they only effective on man made noise?


     

  2. Tallman

    Tallman W9WDX Amateur Radio Member, KW4YJ EXTRA class

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    Both.
     
  3. Unit 75

    Unit 75 "TRAINMAN"

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    Shadetree Mechanic likes this.
  4. dave457

    dave457 Sr. Member

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    You need two antennas
     
  5. Tallman

    Tallman W9WDX Amateur Radio Member, KW4YJ EXTRA class

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    I just used a magmount cb antenna for #2. Worked very well.
     
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  6. Shadetree Mechanic

    Shadetree Mechanic 808 On The North Side of Dover

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    Didn't Moleculo do a review on this? I can't seem to find it. Maybe it was a review he did for cbradio magazine? It's out there somewhere.
     
  7. Unit 75

    Unit 75 "TRAINMAN"

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    Hey, Shade. The link I posted above has a good review as well
     
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  8. Shadetree Mechanic

    Shadetree Mechanic 808 On The North Side of Dover

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    Found it.

     
  9. Mudfoot

    Mudfoot Elmer

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    It works great for man made noise. JPS made a unit called ANC-4, then Timewave bought them out. That's the one I had. I imagine the MFJ unit works the same. The important thing is to be patient. Depending on the noise source, it can take a great deal of experimentation getting it to work. Follow the directions carefully.

    They do little to alleviate atmospheric noise, though.
     
    Shadetree Mechanic likes this.
  10. BJ radionut

    BJ radionut Supporting Member and 6m addict

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    https://www.dxengineering.com/parts/bhd-dual-in-line

    https://www.bhi-ltd.com/noise-cancelling/dsp-noise-cancelling-in-line-modules/dual-in-line.html

    Flexible DSP noise-canceling unit with high-performance audio processing - New lower Price!
    The bhi Dual In-Line amplified DSP noise-canceling module uses a powerful high-performance audio processing system and unique DSP noise-canceling technology to distinguish speech signals from noise and interference. This results in clear intelligible speech under most conditions. Your listening experience will be greatly improved with the processed speech sounding much clearer and more intelligible without all the noise, especially when trying to listen to weak signals.
    [​IMG]

    [​IMG]

    Other choices.

     
    Shadetree Mechanic likes this.
  11. Shadetree Mechanic

    Shadetree Mechanic 808 On The North Side of Dover

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    How to fix it before you use it........

     

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