Rick Bates, NK7I
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With a recent opening, I ran a test using PSKReporter
as the data source.
I have a 6M halo (square shaped half wave dipole, folded back on
itself, configured horizontally), the 6M J pole and the 160M
inverted L antenna (native match ~3.4:1, used a tuner).
Essentially all are omni configured. That's as level a playing
field as I managed.
I sent out some CQ on FT8 (100 watts), noted
where I was heard.
Halo, not bad, a few over a dozen hits.
J Pole, better, double the numbers
Inverted L was the best of the three , about 30 hits (likely due
to gain from length AND both vertical and horizontal factors);
BUT some of the original hit spots didn't hear me... I'll put
that off to a cloud shift, it's not consistent at my latitude
(Idaho, almost Canada).
I was a paid fire line captain once upon a time. I learned:
every time you make a choice, you eliminate options. Having
options (even under HOA oppression) is always a better plan.
Having options kept one alive.
The point is, play around. No two days on E are
the same, you don't always know where the cloud is... be
On 7/14/2018 1:06 PM, Michael Blake via
Thanks Rick. I have not tried or considered any vertical antennas
as my understanding is that there is very little polarity shift
via Es and that most of the signals start out as horizontally
polarized signals. Random polarity on F layer propagation but not
so on E layer propagation. It is also my understanding the Es
signals come in at a very low angle which was the key factor in
looking at the stacked dipoles.
My understanding might be all wet though which might
make a vertical a good choice.
On Jul 14, 2018, at 3:57 PM, Rick WA6NHC <wa6nhc@...
Or a J Pole (if
you can avoid proximity to it, they're a mite picky
and require a coax balun at the antenna feed).
With the cost
of copper, price is variable but use 3/4" not half
inch. It's much more stable in winds.
On 7/14/2018 11:20 AM, Charlie T, k3ICH wrote:
In that case, you might try
a 5/8 wavelength vertical, or maybe even a
co-linear, vertical stacked array.
It would be omni-directinal,
but would offer some gain.
73, Charlie k3ICH
----- Original Message -----
July 14, 2018 9:31 AM
[Elecraft-K3] 6M Es antenna question
I agree Charlie that a 3 element beam would be better
but all of my antennas are in the trees in a very
dense HOA neighborhood. A dipole works pretty well
oriented broadside 20 degrees/ 200 degrees.
While the second phased dipole is
mechanically a pain the real question was about the
angle that Es stuff favors.
On Jul 14, 2018, at 9:07 AM,
Charlie T, k3ICH <pincon@...
for the little extra a second diploe
would add, I don't feel it would be
worth the effort.
the effort to add another dipole with the
supports, feed line etc., you may be
better off using a small 3 or 4 element
Yagi if you can. Depending on your
location, you may not even have to rotate
it, since you'll have about a 90 degree
horizontal beam width, and this will
net you around +6dB of forward gain.
----- Original Message
July 14, 2018 8:34 AM
6M Es antenna question
Having a ton of fun working FT8 via Es on
50.313 with both my K3s and my KX3. My
antenna is a simple dipole at about 30 feet
My question regards the angle
that Es signals arrive. If I stacked
another dipole at 12 feet lower the angle
of maximum gain lowers significantly. Is
the preferred angle of arrival/departure
on an Es signal completely random
depending on the distance from the E cloud
or would the stacked dipoles (Lazy H)
always be better?