On Mon, 17 Apr 2006 23:03:56 -0400, "Yuri Blanarovich"
wrote:

Now, when we actually "look" at the design at your link, we find we
don't know much about:

Here is the information from my web site as described by Barry, W9UCW:

This is still insufficient even for a partial description.

"Here are some actual measurements of current below and above loading coils.
92" mast, using a HI-Q coil (openwound airdux, 2 1/2"d) with small

92" does not agree with other numbers offered.

snip

On a long, skinny 160 resonator

The coil shown is no such thing.

with 25pf of top hat and whip

I frankly don't accept the description of "25pf of top hat and whip"
because there is absolutely no supporting discussion, measurements, or
modeling. This is "blue sky" reporting.

, mounted on an
8' mast, I read 100ma below and 65ma above the coil.

An 8' mast equates to 92" mast which leaves no room for a whip, that,
or the whip is unspecified.

snip
a 20m mobile antenna. It was a 78" base
mast (including spring and mount) with a 38" top whip (including 12" of
alum. tubing for adjustment).

Which has absolutely nothing to do with your published page. It is
bad enough to fight for details with one obscure design, to then
australian tag match for two obscure antennas.

snip

1. How tall the antenna is (never said);
He said - 92" simulating mobile whip.

This is incorrect from the your statements offered above. The ANTENNA
is larger, that much is obvious.

2. How long the radials are (never said);
Radials laid on the ground are non resonant, doesn't matter much, but there
were enough of them (I remember him mentioning at least 32)

This does not answer the question.

3. How many turns in the coil (have to squint and count and hope);
Coild is of good quality (aka Texas Bugcatcher),

This does not answer the question.

what is important that it
was adjusted to bring antenna to 90 electr. degrees - RESONANCE.

The coil is stock, there was no adjustment made, that is quite
obvious. Further, nothing was resonated. This page's material came
from a jury-rigged set-up for a kangaroo court proof. The antenna was
not resonated the tuning was performed in the shack. Twist enough
knobs to jimmy a current was the name of the game here.

4. How long the coil is (you gotta guess);

Same as 3, in each test,

This does not answer the question.

enough to resonante on band of test (40, 30, 80)

Yuri, you are ****ing on our legs and telling us it is raining. One
coil, one mast, one whip, does not resonate on three bands. You guys
were twisting knobs, not resonating a radiator with a load.

5. What frequency this resonates at (well, actually it doesn't say it
resonates anywhere);

Ham bands 40, 30, 80 and 160 is where they measured the currents.

Impossible, the coil is much to small for such a small radiator to
resonate in 160M band, the rest of these claims are equally invalid by
the simple observation of the content at your page and the poor
responses to technical questions above.

6. What the drive point Z is (as if that mattered)

Not important as long as antenna is resonant on frequency in question.

This is simply your way of saying you don't know and you couldn't find
out. Further, nothing was resonant - it would take far more details
that you don't have to make it happen. Again, you just don't know.

until
10. I threw away that trash coil, replaced it with a distributed load
(aka shorted transmission line) and boosted the performance.


And you did that, and measured it, right?

Yes.

It has been proven in real life and measurements that "trash" coil performs
better in the loaded Yagi design that loading stub (distributed load). It
has been done, described and measured by at least three happy owners of
modified KLM 2 or 3 el. loaded Yagis on 80. Improved gain and pattern, F/B.

And they aren't here are they? Tell us the found the missing WMD and
that would make them real heroes.

This is my last contribution to this thread.

You over-rate it considerably. No doubt we will hear more on this,
but that won't be contribution either.

73's
Richard Clark, KB7QHC