[Lowfer] Lowfer JH Loop Experiment

[John Hamer]

Hey John,

I have read about Bill's loop experiments and I know the "Legal Loop" does
not perform well. It was quick to setup though and I need more time to get
my new antenna built. I have also wanted to experiment with the small loop.

How did your "Less Legal Loop" perform?

I was looking at the WD2XES 137.7khz loop page on your site earlier. You
have a bad link for it, it is missing a .htm at the end. Or at least it
doesn't work from my chrome browser without adding the .htm.
http://www.w1tag.com/XESANT.htm

John Hamer

On Tue, Nov 30, 2021 at 9:56 AM John Andrews <w1tag at charter.net> wrote:

> John,
>
> This recalls an experiment that I did in early 2002. I made up a 12-foot
> on a side diamond-shaped loop, using four #8 THHN wires, with PVC cross
> fittings (holes drilled thru the PVC) to keep the wires separated. If
> you were to bunch the wires together, the skin effect would apply to the
> bundle, and not to the individual wires. Hung the thing from a tree
> branch, and stretched it out to nearby trees. The impedance as measured
> on the old GR bridge was 0.2 +j18.2 Ohms. Antenna current was 2.1A.
>
> The results were not impressive: Dex (in NC) did copy some fragments in
> DFCW60, and had some complete copy in WOLF. That was the farthest it got
> -- sigs around New England were OK, though many dB below Bill Ashlock's
> 200' perimeter copper pipe loop antenna.
>
> I called it the "LL" (legal loop), as it appeared to meet all aspects of
> Part 15. Took it down after a month or so, and put up a larger loop (the
> Less Legal Loop) which I used here until Bill and I put up the big loop
> for my experimental license a few years later.
>
> I've always wanted to duplicate the experiment with big copper -- maybe
> 2" or 3", but never managed to make the investment. A 50' piece of
> flamed-out 3" Heliax would be great - who cares what condition the
> center conductor and dielectric are in...
>
> John, W1TAG
>
> On 11/29/2021 9:58 PM, John Hamer wrote:
> > Mike,
> >
> > I actually have some pretty good size litz wire. It looks to be around 3
> or
> > 4mm diameter.  Ill see if there is a label on spool with more
> information.
> > I'm not sure if the spool came with the wire.  I got it from my last job
> > years ago when they were trashing it.
> >
> > I still have everything breadboarded, so I'm not sure if that is causing
> > any issues,  but I will solder it all together in the next few days
> >
> > John
> >
> >
> > On Mon, Nov 29, 2021, 9:52 PM N8OOU <n8oou at meekfarm.us> wrote:
> >
> >> John,
> >>
> >> Good to have another loop experimenter. I am curious about what you are
> >> using for the loop conductor. My experiments have shown the larger the
> >> conductor, the better.
> >>
> >> Good Luck
> >>
> >> 73   de   N8OOU - Mike Meek
> >>
> >> On 11/29/21 5:17 PM, John Hamer wrote:
> >>> I have a 12'x12' square loop setup. I am transmitting my usual mode of
> >>> qrss60 and a graphic on 181.818KHz. I just got it going tonight and
> still
> >>> have some work to do, but if you are looking for a challenge, give it a
> >>> shot! It is aimed in the N/S direction.
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