[Elecraft] Portable Antennas (mag loop)

[Arthur Burke]

I bookmarked the site - thank you. However, I didn't get very far the first
time when I saw the comment "....must be 1/2 wavelength above the ground..."

Still would like to go back and review the entire article.

Brings back a humorous dialog from years ago. One ham expressed the desire
to build a "....good, but short, 40 meter beam..." It was suggested he
shorten the beam until it was ultimately a 50-ohm resistor of sufficient
girth to accept reasonable power levels. Chuckles followed.

Then, someone who apparently didn't pick up on the tongue-in-cheek, frowned
and noted that the 50-ohm resistor would work even better if it was at
least a couple wavelengths in the air.

Art - N4PJ



On Thu, May 10, 2012 at 7:30 AM, David Cutter <d.cutter at ntlworld.com> wrote:

> It will be quiet on receive and quiet on transmit, however much power
> you put into it, until it melts, that is.  I'd love to know where he
> gets his efficiency figures - perhaps you can ask him.  Putting steel
> washers at each aluminium joint turned me off completely along with the
> dinky receiving capacitor.
>
> I'm quite taken by the Midnight Loop from N2APB and N2CX, mainly because
> I built something similar 20 years ago, only a lot bigger!  See
>
>
> http://www.midnightdesignsolutions.com/MidnightLoop/Midnight%20Loop%20%28Mar%2011a%29.pdf
>
> David
> G3UNA
>
>
> On 10/05/2012 07:55, Stephen Prior wrote:
> > Hi Fred
> >
> > I have been very tempted by the Alex-loop, but in the meantime have just
> > bought one of G4TPH's loops which I shall put through its paces when the
> > weather improves!  I should imagine that the insensitivity to electric
> > fields in the near field would be an advantage in electrically noisy
> > environments. Even a campsite can be very noisy with the inverters from
> RVs
> > and the like spewing out rf everywhere.
> >
> > I'm spoilt for choice of antennas to play with once the KX3 arrives!
> >
> > 73 Stephen G4SJP
> >
> > On Wednesday, 9 May 2012, Fred Jensen wrote:
> >
> >> I haven't been following this thread closely but has anyone mentioned a
> >> small magnetic loop like the Alex-Loop?  I've got a good SOTA friend who
> >> uses one and loves it.
> >>
> >> 73,
> >>
> >> Fred K6DGW
> >> - Northern California Contest Club
> >> - CU in the 2012 Cal QSO Party 6-7 Oct 2012
> >> - www.cqp.org
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