[Lowfer] Tree Experience

[Douglas D. Williams]

I've tried the "nail in the tree antenna" for listening to natural radio
200Hz-10kHz. It worked quite well with my RS-4 receiver, if I remember
correctly.

Wasn't Bill the one who built that huge ferrite loop? IIRC it was something
like 6' long! Bet that took a lot of ferrite. Would be an expensive
proposition these days.

-Doug


On Fri, Dec 27, 2013 at 9:11 PM, Dick Goodman <wa3usg at verizon.net> wrote:

> I had a tree once!
>
> -----Original Message-----
> From: lowfer-bounces at mailman.qth.net [mailto:
> lowfer-bounces at mailman.qth.net]
> On Behalf Of riese-k3djc at juno.com
> Sent: Friday, December 27, 2013 8:25 PM
> To: lowfer at mailman.qth.net
> Subject: Re: [Lowfer] Tree Experience
>
> Bill did experiment with the nail inna tree ,, I believe he passed around
> the time he was playing with it Bill was the big LOOPER guy and proved you
> could make/use a loop as a good restricted antenna for LF kinda miss Bill
>
> Bob K3DJC
>
> COn Fri, 27 Dec 2013 15:49:51 -0500 Warren K2ORS <k2ors at verizon.net>
> writes:
> > Jay, John,
> >
> >        I thought that Bill Ashlock's tree antenna was a random wire
> >
> > supported by a tree and fed with a 9:1 or 16:1 transformer?
> > This was his setup in Ellsworth,NH in any event...
> >
> >
> > 73 Warren
> >
> >
> > On 12/27/2013 3:23 PM, jrusgrove at comcast.net wrote:
> > > IIRC, Bill Ashlock was using a 'Tree Antenna' for receiving
> > lowfer
> > > stations many years back. Seemed like he got decent reception.
> > >
> > > Jay
> > >
> > >
> > >
> > >
> > > ----- Original Message ----- From: "JD" <listread at lwca.org>
> > > To: "Discussion of the Lowfer (US, European, &amp;UK) and MedFer
> > bands"
> > > <lowfer at mailman.qth.net>
> > > Sent: Friday, December 27, 2013 3:10 PM
> > > Subject: Re: [Lowfer] Tree Experience
> > >
> > >
> > >>>>> or is the relatively strong signal from the 50KW station also
> > >>>>> creating some level of   "ionic" non-linear conductivity
> > process
> > >>>>> within in the tree(s)---which then a portion thereof is
> > re-radiated
> > >>>>> or otherwise coupled to the e-probe?
> > >>
> > >> A much simpler explanation may involve the height of the trees.
> > >>
> > >> Although trees are highly resistive "antenna elements" by nature,
> > they
> > >> are still subject to resonance effects.  Their relatively large
> > >> diameter and their inherent capacitive loading mean that most any
> > full
> > >> grown tree can have a substantially different amount of
> > interaction
> > >> with a 2040 kHz EM wave than it does at 1020 kHz.  Not only the
> > height
> > >> of their trees, but also the spacing, will directly affect the
> > >> relative levels of carrier versus harmonic at any given point,
> > since
> > >> they can form a low-efficiency directional array of sorts.
> > >>
> > >> I was able to witness this effect first-hand at an AM station a
> > little
> > >> over 20 years ago, while trying to show the owners why they
> > needed to
> > >> deforest (no pun intended) the site to its early-1950s condition
> > if
> > >> they wanted the same coverage they had back when the station was
> > new.
> > >>
> > >> John
> > >> ______________________________________________________________
> >
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