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
>
_______________________________________________
RFI mailing list
RFI@contesting.com
http://lists.contesting.com/mailman/listinfo/rfi
_______________________________________________
RFI mailing list
RFI@contesting.com
http://lists.contesting.com/mailman/listinfo/rfi
|