[RFI] Ultrasonic detect. (was: Power line RFI situation)
Hare,Ed, W1RFI
w1rfi@arrl.org
Fri, 22 Mar 2002 15:15:37 -0500
Mea Culpa:
The actual company name is:
Information Unlimited
POB 716
Amherst, NH 03031-0716
1-800-221-1705
http://www.amazing1.com
73,
Ed Hare, W1RFI
ARRL Lab
225 Main St
Newington, CT 06111
Tel: 860-594-0318
Internet: w1rfi@arrl.org
Web: http://www.arrl.org/tis
ARRL is the National Association for Amateur Radio. It is supported by
membership dues, individual contributions and the sale of publications and
advertising. For more information about ARRL, go to
http://www.arrl.org/news/features/inside-your-league.html. For more
information about membership, go to http://www.arrl.org/join.html. Your
contribution can also help support ARRL's ongoing efforts to protect Amateur
spectrum. Go to https://www.arrl.org/forms/development/donations/basic/ to
learn more about the ways you can support the ARRL programs and activities
of most importance to you. You can help ARRL protect Amateur Radio for you
and future generations to enjoy.
> -----Original Message-----
> From: Hare,Ed, W1RFI [mailto:w1rfi@arrl.org]
> Sent: Friday, March 22, 2002 3:06 PM
> To: 'Rob Atkinson, K5UJ'; rfi@contesting.com
> Subject: RE: [RFI] Ultrasonic detect. (was: Power line RFI situation)
>
>
> I am such a devil, aren't I? :-)
>
> We don't yet know how well this one will work, so don't spend
> your money
> yet. Let's risk ARRL's $200.00 ($200.00 / 165,000 members =
> $0.0012 each).
>
> K2QAI has attended RFI Services training seminar (see the
> link at the end of
> the ARRL's electrical inteference page --
> http://www.arrl.org/tis/info/rfi-elec.html). At that seminar,
> he found that
> *once you know a pole*, you *may* be able to hear the arc
> with an ultrasonic
> dish. If, however, the arc is on the top of an insulator,
> and you don't
> have perfect "line of site," the ultrasonic noise can be blocked. The
> results DO have to be interpreted.
>
> For those who can't wait, the company selling the dish is
> Amazing Products
> and Devices, http://www.amazing1.com. Scroll down to
> "ultrasonics." We are
> lazy, so we bought the assembled unit.
>
>
> 73,
> Ed Hare, W1RFI
> ARRL Lab
> 225 Main St
> Newington, CT 06111
> Tel: 860-594-0318
> Internet: w1rfi@arrl.org
> Web: http://www.arrl.org/tis
>
> ARRL is the National Association for Amateur Radio. It is
> supported by
> membership dues, individual contributions and the sale of
> publications and
> advertising. For more information about ARRL, go to
> http://www.arrl.org/news/features/inside-your-league.html. For more
> information about membership, go to
> http://www.arrl.org/join.html. Your
> contribution can also help support ARRL's ongoing efforts to
> protect Amateur
> spectrum. Go to
> https://www.arrl.org/forms/development/donations/basic/ to
> learn more about the ways you can support the ARRL programs
> and activities
> of most importance to you. You can help ARRL protect Amateur
> Radio for you
> and future generations to enjoy.
>
>
> > -----Original Message-----
> > From: Rob Atkinson, K5UJ [mailto:k5uj@hotmail.com]
> > Sent: Friday, March 22, 2002 9:16 AM
> > To: w1rfi@arrl.org; rfi@contesting.com
> > Subject: RE: [RFI] Ultrasonic detect. (was: Power line RFI
> situation)
> >
> >
> > Ed,
> >
> > Please tell where they sell for $200.00. For that I might
> > buy one for
> > myself, just to have the ability to locate a problem with
> > high credibility.
> > I am looking at the power line noise problem long-term so
> > this would be sort
> > of an investment. Even if we can eliminate a few of the
> > sources soon, I'm
> > sure there will be others continuing to come up from time
> to time and
> > unfortunately, burial of lines is not going to happen any
> > time soon. I
> > searched the Web and found a vendor for one brand of
> > ultrasonic arc locator
> > (the kind with a clear plastic dish and pistol grip handle
> > that the pros
> > use) and it cost over $6,000!!
> >
> > Rob Atkinson
> > K5UJ
> > k5uj@hotmail.com
> >
> > ----Original Message Follows----
> > From: "Hare,Ed, W1RFI" <w1rfi@arrl.org>
> > To: rfi@contesting.com
> > Subject: RE: [RFI] Power line RFI situation
> > Date: Thu, 21 Mar 2002 10:33:08 -0500
> >
> > I just bought one for $200.00. :-) K2QAI is out right now
> > checking it out.
> > Unfortunately, all our local power lines are wet, so we may
> > not have any
> > noise right now.
> >
> > 73,
> > Ed Hare, W1RFI
> > ARRL Lab
> > 225 Main St
> > Newington, CT 06111
> > Tel: 860-594-0318
> > Internet: w1rfi@arrl.org
> > Web: http://www.arrl.org/tis
> >
> > ARRL is the National Association for Amateur Radio. It is
> > supported by
> > membership dues, individual contributions and the sale of
> > publications and
> > advertising. For more information about ARRL, go to
> > http://www.arrl.org/news/features/inside-your-league.html. For more
> > information about membership, go to
> http://www.arrl.org/join.html. Your
> contribution can also help support ARRL's ongoing efforts to
> protect Amateur
> spectrum. Go to
https://www.arrl.org/forms/development/donations/basic/ to
learn more about the ways you can support the ARRL programs and activities
of most importance to you. You can help ARRL protect Amateur Radio for you
and future generations to enjoy.
> -----Original Message-----
> From: Rob Atkinson, K5UJ [mailto:k5uj@hotmail.com]
> Sent: Monday, March 18, 2002 6:26 PM
> To: rfi@contesting.com
> Subject: Re: [RFI] Power line RFI situation
>
>
>
> Hi everyone,
>
> I've received a lot of great suggestions--thanks. Here's an
> idea for your
> local club if you're looking for something to purchase and
> let members use:
> One of those ultrasonic dishes to pinpoint line arcs. I bet a lot of
> members would want to use it! I'd be first in line if I were
> one of them!
>
> 73,
>
> Rob Atkinson
> K5UJ
> k5uj@hotmail.com
>
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