Topband: [RFI] Powerline noise question

[Don Kirk]

Hi Jim,

Below is a link to a simple website I have for my portable flag antenna and
you will find a link in the first paragraph of my website to the original
QST article (with the permission of the ARRL).  DX Engineering also sells
what they call their NoiseLoop which is based on my portable flag and they
also sell a preamplifier specifically designed for use with my portable
flag that works really well.

https://sites.google.com/site/portableflagantenna/home

P.S.  I make no money on anything that DX Engineering sells, including my
portable flag.

73,
Don (wd8dsb)

On Fri, Dec 30, 2022 at 2:13 AM Jan Erik Holm via Topband <
topband at contesting.com> wrote:

> Can a description of that antenna be had ?
> Google was not my friend and I don´t have QST.
>
> / Jim SM2EKM
>
> Den 2022-12-30 kl. 04:53, skrev Frank W3LPL:
> > Hi Rick,
> >
> > I recently built a WB8DSB man portable flag antenna (March 2021 QST)
> > for RFI geolocation, its performance far exceeds my expectations.
> > Its narrow deep null quickly, easily and definitively located the
> > source of very troublesome 160 meter RFI to a single power pole
> > more than three miles from my QTH.  Prior to constructing the
> > flag antenna I could locate the RFI to only within a few hundred
> > yards of the RFI source.
> >
> > I built my flag antenna entirely out of materials I had on hand
> > from previous projects including 3/8 inch diameter fiberglass rods,
> > a pair of Advanced Receiver Research P1-30/20VD 20 dB HF preamps,
> > a case of eight AA batteries to provide power to the preamps,
> > a switchable attenuator and a Tecsun PL330 portable HF receiver.
> >
> > I highly recommend this easily constructed RFI geolocation antenna
> > for the toolkit of any serious HF operator.
> >
> > 73
> > Frank
> > W3LPL
> >
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