Hi Ed,
Feel free to use my video as you desire. This case was the loudest I have
encountered when listening up on 438 MHz. I normally just need 136 MHz with
lots of attenuation but since this pole was so loud I also decided to
confirm things up on 438 MHz.
73,
Don
On Mon, Dec 20, 2021 at 4:23 PM Hare, Ed, W1RFI <w1rfi@arrl.org> wrote:
> With your permission, Don, I'd like to put a link to that video on ARRL's
> web page on power-line RFI. We know that not all sparking is visible, but
> when an arc is occurring, it is way loud.
>
> ARRL has recently hired a new engineer to handle our RFI work and updating
> all of our web pages is going to be good training for him.
>
> Now, we also need a new Product Review test engineer, if any of you have
> experience with test equipment and modern amateur gear.
>
> Ed, W1RFI
>
>
> -----Original Message-----
> From: RFI <rfi-bounces+w1rfi=arrl.org@contesting.com> On Behalf Of
> Stephanie WX3K via RFI
> Sent: Monday, December 20, 2021 3:17 PM
> To: Don Kirk <wd8dsb@gmail.com>
> Cc: RFI <rfi@contesting.com>
> Subject: Re: [RFI] RFI from arcing power pole 1.1 miles away (video
> capture of the arc)
>
> Nice job Don !
>
> Capturing the arc was something i have never seen anyone do before.
>
> What SDR are you using ? It appears quite sensitive
>
> Stephanie WX3K
>
>
> > On Dec 20, 2021, at 2:36 PM, Don Kirk <wd8dsb@gmail.com> wrote:
> >
> > Utter disappointment Saturday morning when I was getting ready for
> > the Stew Perry 160 meter contest when I noticed new RFI on 160 meters
> > as well as 80 meters to my East, and spent the morning tracking it
> > down to a pole 1.1 miles from my QTH. My portable flag with laptop
> > based SDR receiver made it very easy to home in on the suspect pole
> > using 80 meters, and then used 136 MHz with 4 element Yagi and
> > portable AM radio to isolate the bad pole from adjacent poles. Also
> > used 438 MHz with 4 element Yagi and my laptop based SDR to confirm my
> findings.
> >
> > I went back last night (Sunday night) after sunset to see if I could
> > see the pole arcing because I was pretty sure I knew where the problem
> > was based on some very up close pictures I had obtained earlier in the
> > day using a 14.1 mega pixel camera with 35X Optical Zoom. I went to
> > the pole about 2 hours after Sunset and before even exiting the car I
> > could easily see arcing where I thought it would be.
> >
> > Today I uploaded a video onto youtube that captures the arcing as well
> > as some up close pictures that captures the hardware problem on the
> > pole. Here is a link to that video for those interested.
> > https://youtu.be/-iU1wbb8Na0
> >
> > It never ends, but at least this case was obvious.
> >
> > 73,
> > Don (wd8dsb)
> > _______________________________________________
> > RFI mailing list
> > RFI@contesting.com
> > http://lists.contesting.com/mailman/listinfo/rfi
> >
>
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