Re: [BVARC] Recommendation for noise suppression?

Mon, 15 Jan 2024 16:13:40 -0800

Thanks Chris! I completely understand. I will at the least politely make my neighbor aware of the interference. If there are options like better power supply for the lights, filters, etc. will suggest those too. Any recommendations are welcome! If the neighbor doesn't want to do anything then I will just have to live with it. 

73,

Amal - KT5AC

On 1/15/24 16:33, Chris Medlin wrote:
This is probably not the answer you want to hear, but I have heard of stories like this and the answer has always been that the ham talks to the neighbor and ends up purchasing an equally good product that serves the same purpose that does not cause interference. Or… best case scenario, the ham goes in 50/50 with the neighbor on a product that does not cause interference. Find a way to make it a win/win situation. 
The ham radio community is a friendly diplomatic group.
Back in the day when people were watching analog tv over the air, many hams had to educate their neighbors on the use of high pass filters to keep our interference out of their tvs. Now with LED lights and cheaply made ballasts in lights, we are dealing with interference in our radios. 
Good luck and 73.
Chris/AC5CM


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On Jan 14, 2024, at 21:42, Amal Phadke KT5AC via BVARC <bvarc@bvarc.org> wrote: 


Thanks a bunch for the quick replies. Through a truly bizarre coincidence, I can confirm (99.9% certainty) that the RF noise was from my neighbor’s outdoor soffit lighting. What happened was, a few minutes after I sent my original email about the noise, I went back to my shack to check the radio. Lo and behold, the noise was gone. I peeked through my window and saw that my neighbor had turned off his soffit lights! That was an unbelievably strange coincidence!
The question now is what should I tell my neighbor to do to stop the interference, other than to never turn on the soffit lights 😊Any suggestions? 

Thanks,

Amal – KT5AC

*From:*David Morefield <da...@fluffyshotme.com>
*Sent:* Sunday, January 14, 2024 8:37 PM
*To:* BRAZOS VALLEY AMATEUR RADIO CLUB <bvarc@bvarc.org>
*Cc:* Kori Rahman <kori...@gmail.com>; Amal C. Phadke <amal.kt...@gmail.com> 
*Subject:* Re: [BVARC] Recommendation for noise suppression?
I had an issue with noise recently and it was caused by the proximity of my laptop charging brick to my radio. You may want to start turning things off to see if you can eliminate the source of the noise. 

David Morefield

Owner - Fluffyshotme Photography

_David@fluffyshotme.com_

281-960-5253 mobile

<http://www.fluffyshotme.com/>
On Sun, Jan 14, 2024 at 7:47 PM Kori Rahman via BVARC <bvarc@bvarc.org> wrote: 

    I have only seen something close to this level of interference on
    2m and that has been from some cheap LiFePo4 charger I got that
    was charging my 100Ah battery. But it was about 25% bars and it
    was about 30ft from my 2m antenna. It does happen a lot with
    chargers for various batteries like shop tool chargers etc.

    Sounds like a job for a 2m Yagi and am attenuator. I've got the
    Yagi but not the attenuator.

    73,

    *Kori Rahman, WX5KR
    **Brazos Valley Amateur Radio Club*

    *Vice-President and Club Call Sign KK5W Trustee
    *Cell: (770) 298 8516

    kori...@gmail.com <mailto:kori...@gmail.com>

    On Sun, Jan 14, 2024 at 7:30 PM Amal C. Phadke via BVARC
    <bvarc@bvarc.org> wrote:

        Folks,



                    I am hoping someone can give me pointers on
        suppressing
        annoying noise my dual band (2m-70cm) antenna picks up in VHF
        range. I
        suspect it is from my neighbor’s external soffit lighting,
        but I am not
        sure. The receive signal meter fully lights up like seen in
        the attached
        picture. The repeater was idle when I took this picture. It
        doesn’t happen
        on UHF, only VHF and only from dusk to dawn. I hear a lot of
        static in the
        received signal, and I suppose in the transmitted signal as
        well. Moving the
        permanently installed outdoor antenna is not practical and
        using slip-on
        ferrite beads on the coax didn’t help. Has anyone experienced
        this issue? I
        would appreciate any suggestions.



        Thanks, and 73,



        Amal - KT5AC

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