My apologies to Charlie and everyone else for not editing my speech to text
post and reply. I was in a rushed situation and tried to post via speech to
text and we all know that doesn't typically work very well but I didn't
have the time to edit it. I'm sure everyone has figured out my mistakes and
again I'm sorry for making so many. I'm laughing while I text this.
Michael Martin
RFI Services
51 W Bay Front Rd
Lothian, MD 20711
240-508-3760
mike@rfiservices.com
www.rfiservices.com
On Sat, Feb 3, 2024, 6:45 PM Lee STRAHAN <k7tjr@msn.com> wrote:
> Charlie, and all,
>
> I have spent a lot of hours with the Pacific Power’s contract guys
> riding along in their rigs. I can say this, In the Central Oregon area
> about 90% or more of the Radio interferences on 160 and 80 meters found
> here are caused in the pole to pole or pole or pole to ground wires system
> and not the high tension lines. Some of our lines are quite old and
> continually get upgraded. Usually loose bolts or 2 pieces of metal very
> close to one another with no literal connection arcing to each other. One
> particular hard to find occurrence here was a single long bolt through the
> crossarm too close to one of the 45 degree braces holding that crossarm to
> the pole. Found first with 225 MHz and then identified as the bolt by
> Ultrasonic. Pole back stay cables are often involved in that ground system
> especially if accidentally touching another cable.
>
> For my purposes I find that RF receivers are the best at getting very
> close to an offender. I use from AM broadcast up to 450 MHz for initial
> finds and then try my own design of ultrasonic with an Edmund scientific 12
> inch parabolic dish. The ultrasonic is OK for refining down to particular
> hardware on a find but you cannot detect any area you cannot see for small
> arcs. As an aside we have a lot of Cheat Grass here and when dry in a
> breeze overpowers the ultrasonic at 43KHz in our dry summer climate.
>
> Its just like low band receiving, one can never have enough interference
> locating tools or receiving antennas.
>
> Lee K7TJR OR
>
>
>
> *From:* charlie@thegallos.com <charlie@thegallos.com>
> *Sent:* Saturday, February 3, 2024 12:54 PM
> *To:* 'Michael Martin' <mike@rfiservices.com>
> *Cc:* 'Lee STRAHAN' <k7tjr@msn.com>; 'Rfi List' <rfi@contesting.com>
> *Subject:* RE: [RFI] UPDATE re: Source power pole located - but wonder
> which components most likely temperature sensitive
>
>
>
> Nah, I’m buying the drone for OTHER reasons (Lost pet finding, help with
> SAR) – but was wondering if nosie fining would work. I know others in the
> field who are doing power line inspections for the power company (HV
> Lines). So it seems that for noise, basically useless – that is OK, was
> just a “It would be nice if it did”
>
>
>
> *From:* Michael Martin <mike@rfiservices.com>
> *Sent:* Saturday, February 3, 2024 9:11 AM
> *To:* charlie@thegallos.com
> *Cc:* Lee STRAHAN <k7tjr@msn.com>; Rfi List <rfi@contesting.com>
> *Subject:* Re: [RFI] UPDATE re: Source power pole located - but wonder
> which components most likely temperature sensitive
>
>
>
> Charlie I'm sorry I don't have time to write I really thorough and long
> response to your post. However, if you're purchasing and I are camera for
> the use of Powerline noise you'll be wishing your money. It is not
> economically feasible. I have been out with many infrared camera sales
> people and Corona can people. I challenge them in a neighborhood that I
> don't frequent and I tell them to find every Source they can find in the
> neighborhood. I go out and I find every Power Line noise in the
> neighborhood. We spend a couple of hours doing this and come back and
> compare them. Rarely is there more than one source that are matching. Most
> power line noises are created by very small sparks. It's unfortunate as
> most amateur radio operators want to explain to the power companies that
> these are all catastrophic failures and due to a lack of maintenance. That
> is just not factual. The Sparks that create most of the power line noises
> do not create Heat because of the lack of current flow. Most sources are
> induced voltage into hardware near the primary conductor. As for ultrasound
> it works wonderful however it's direct line of sight capabilities inhibit
> finding a lot of the sources that are internal such as Lightning restors
> Arc through insulation and conductors and things like that. I read most of
> the input on this reflector and I wish I had time to comment on everything
> but I don't. I spend just about every day locating Powerline noise for
> power companies all over the country and I just can't find the time to
> reply to post that I'd like to because I'm too busy finding noise. I use
> ultrasound and RF every day I use the UE and the radar engineers. The radar
> Engineers is the best piece of equipment out there and in no way should
> anyone think they're going to find the average Source 200 ft away or even
> 60 ft away. The average power line noise from Hardware to ground is
> typically no more than about 50 ft. On the average! I find over 90% of my
> sources using ultrasound. Sometimes those sources are determined because I
> can't receive it with ultrasound and that helps to point toward the source
> as well as being able to hear it. And for red is not a good tool for
> finding Powerline resources. My experience does not come from taking a
> class and being certified. My experience comes from actually doing it and
> time and time again finding the source a lot of times repairing it myself
> to get a total understanding of why it happens as well as a lot of lab
> reconstruction.
>
> Best wishes to everybody.
>
>
>
> Michael Martin
> RFI Services
> 51 W Bay Front Rd
> Lothian, MD 20711
>
> 240-508-3760
> mike@rfiservices.com
> www.rfiservices.com
>
>
>
> On Fri, Feb 2, 2024, 7:02 PM Charlie@thegallos.com <charlie@thegallos.com>
> wrote:
>
> Now here is the question. I know they do IR surveys of the power lines
> (about to go for the class, yes I have my part 107)
> Does anyone know if power line noise sources on the lower voltage stuff
> actually shows in IR? As I’m probably going to be buying a thermal drone
> (probably a M3T), might be a good tool to add
> —
> Charlie
> 73 de KG2V
> Http://www.thegallos.com <http://www.thegallos.com/>
>
>
> > On Feb 2, 2024, at 1:33 PM, Lee STRAHAN <k7tjr@msn.com> wrote:
> >
> > Hi Charlie and all,
> > John Fluke company has some new equipment that senses IR and I believe
> they add ultrasonic for their new remarkable sensor capable of use with
> power lines.
> > " https://www.fluke.com/en-us/products/thermal-cameras";
> > A bit on the spendy side. I remember their new product announcement
> showing power line use but do not recall their specific product numbers.
> > Searching their site.
> > I Found this. "
> https://www.fluke.com/en-us/learn/blog/leak-detection/corona-discharge";
> It's an ii900 from Fluke
> > Lee K7TJR OR.
> >
> >
> > -----Original Message-----
> > From: RFI <rfi-bounces+k7tjr=msn.com@contesting.com> On Behalf Of
> Charles Gallo
> > Sent: Friday, February 2, 2024 7:42 AM
> > To: Rfi List <rfi@contesting.com>
> > Subject: Re: [RFI] UPDATE re: Source power pole located - but wonder
> which components most likely temperature sensitive
> >
> > I know HV lines are surveyed with drones in at least some locations.
> Usually the company applies for a “beyond visual line of sight” (BVLOS)
> waver, and they use drones with thermal imaging and CM accuracy for location
> > --
> > 73 de KG2V
> > Charlie
> >
> >> On Feb 2, 2024, at 10:28 AM, Alan Higbie <alan.higbie@gmail.com> wrote:
> >>
> >>
> >> *I'M CURIOUS*:
> >>
> >> - Is there some new technology being used for surveying lines? I sort
> >> of recall reading something like this. Drones? SDR recording?
> >> - Or, maybe this is just some guy driving around with his AM radio on?
> >> - Is there a new version of the ultrasonic dish that is better than the
> >> previous Radar Engineers model?
> >> - What is the difference between RE models and the MFJ-5008?
> >>
> >> https://mfjen/
> >> terprises.com%2Fproducts%2Fmfj-5008&data=05%7C02%7C%7C416b4c251bef4ede
> >> d11108dc24059682%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C63842485
> >> 3636490497%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzI
> >> iLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C0%7C%7C%7C&sdata=1y2NbTZ5VnjgayxM9A%
> >> 2FBNgfhX%2FYWfplde66glt%2BDRhg%3D&reserved=0
> >>
> >> I will further update when these tickets are closed out - and the
> >> defective component is positively identified.
> >>
> >> 73, ~ Alan K0AV
> >> Colorado Springs
> >> _______________________________________________
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> >> RFI@contesting.com
> >> http://lists/.
> >> contesting.com%2Fmailman%2Flistinfo%2Frfi&data=05%7C02%7C%7C416b4c251b
> >> ef4eded11108dc24059682%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C63
> >> 8424853636498434%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV
> >> 2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C0%7C%7C%7C&sdata=q%2BXkzCHj1pp
> >> z2JM5n%2FeK0oJOBbWt%2BI8TH9RmeYirw64%3D&reserved=0
> >
> >
> >
> > _______________________________________________
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