1. You can now help support WorldwideDX when you shop on Amazon at no additional cost to you! Simply follow this Shop on Amazon link first and a portion of any purchase is sent to WorldwideDX to help with site costs.
    Dismiss Notice

MFJ-1025

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

  1. wa373

    wa373 New Member

    Joined:
    Nov 16, 2019
    Messages:
    12
    Likes Received:
    4
    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

    Joined:
    May 1, 2013
    Messages:
    4,369
    Likes Received:
    4,138
    Both.
     
  3. Unit 75

    Unit 75 Sweet Home Alabama

    Joined:
    Jul 29, 2014
    Messages:
    369
    Likes Received:
    547
    Shadetree Mechanic likes this.
  4. dave457

    dave457 Sr. Member

    Joined:
    Jan 3, 2009
    Messages:
    763
    Likes Received:
    715
    You need two antennas
     
  5. Tallman

    Tallman W9WDX Amateur Radio Member, KW4YJ EXTRA class

    Joined:
    May 1, 2013
    Messages:
    4,369
    Likes Received:
    4,138
    I just used a magmount cb antenna for #2. Worked very well.
     
    Unit 75 and Shadetree Mechanic like this.
  6. Shadetree Mechanic

    Shadetree Mechanic 808 On The North Side of Dover

    Joined:
    Oct 23, 2017
    Messages:
    2,198
    Likes Received:
    2,334
    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 Sweet Home Alabama

    Joined:
    Jul 29, 2014
    Messages:
    369
    Likes Received:
    547
    Hey, Shade. The link I posted above has a good review as well
     
    Shadetree Mechanic likes this.
  8. Shadetree Mechanic

    Shadetree Mechanic 808 On The North Side of Dover

    Joined:
    Oct 23, 2017
    Messages:
    2,198
    Likes Received:
    2,334
    Found it.

     
  9. Mudfoot

    Mudfoot Sr. Member

    Joined:
    Jun 17, 2009
    Messages:
    9,536
    Likes Received:
    4,177
    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

    Joined:
    May 9, 2008
    Messages:
    2,478
    Likes Received:
    1,931
    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

    Joined:
    Oct 23, 2017
    Messages:
    2,198
    Likes Received:
    2,334
    How to fix it before you use it........

     

Share This Page

  • About Us

    The WorldwideDX Radio Forum was originally established in 2001. We pride ourselves on welcoming Radio Hobby enthusiasts of all types, while offering unbiased, informative, and friendly discussion among the members. We are working every day to make sure our community is the best Radio Hobbyist's site.
  • Like us on Facebook

  • Premium VIP Member

    The management works very hard to make sure the community is running the best software, best designs, and all the other bells and whistles. Care to buy us a beer? We'd really appreciate it!

    Donate to us!