John Smith I wrote:

[stuff]

This:
"Our Technical Coordinator, Rob, K1DFT was guest presenter at the April
5th meeting of the Dallas (Texas) Amateur Radio Club. He thrilled a
packed house with a multimedia presentation concerning his invention,
the Distributed Loaded Monopole or DLM.
Rob telephoned me after the event in addition to one of my Dallas
friends who was in the audience to tell me how well the presentation was
received. Congratulations Rob!! The Naval Undersea Warfare Center (NUWC)
antenna testing range performed a full day of tests on a great many
different versions of the DLM just the week before he left for Texas and
validated every one of the DLM’s performance claims. That should quiet
the nay sayers out there who wanted proof of the antenna’s efficiency
and bandwidth."

From he
http://www.arrlri.org/modules/news/a...php?storyid=12

JS

John Smith I wrote:

[stuff]

This page:
http://lists.contesting.com/_towerta.../msg00225.html

shows someone is "listening", however, somehow he missed the
"plano-helical coil", where each hairpin "turn" is serving as a small
capacitance ...

Also, the "plano-spiral top hat" seems to have been missed, essentially,
I picture a concentric wound "flat" coil which also seems to present
itself to being available to the "capacitive loading" effect. I have
simply taken a flat sheet of 1/16 aluminum and cut a continuous spiral
to create one to experiment with ...

Geesh, I would trade a few hours work for just a good pic of this
antenna, or at least a better description! Save a LOT of experimental
work on this end ...

And, then, there is that nagging mention about some sort of loading
device in the center ... oh well, where is that hacksaw?

JS

John Smith I wrote:
John Smith I wrote:

[stuff]

This:
"Our Technical Coordinator, Rob, K1DFT was guest presenter at the April
5th meeting of the Dallas (Texas) Amateur Radio Club. He thrilled a
packed house with a multimedia presentation concerning his invention,
the Distributed Loaded Monopole or DLM.
Rob telephoned me after the event in addition to one of my Dallas
friends who was in the audience to tell me how well the presentation was
received. Congratulations Rob!! The Naval Undersea Warfare Center (NUWC)
antenna testing range performed a full day of tests on a great many
different versions of the DLM just the week before he left for Texas and
validated every one of the DLM’s performance claims. That should quiet
the nay sayers out there who wanted proof of the antenna’s efficiency
and bandwidth."

If the NUWC range is like most other ranges, it's a facility that is
essentially for rent to anybody who wants to use it. The range provides
the site, the equipment, and the technicians. You tell them what tests
you want to run, operate your equipment if needed, and they make the
measurements and give you the data. As a rule, they'd make no
substantive evaluation of the worth of anything tested there. You could
hire them to make measurements on a 100ft spool of 20year old zipcord
sitting on a folding chair, and they'd happily fire up the signal
generator, measure the field strength, etc. It's not even all that
expensive.. It could be something like $1000 to do a day's testing, and
in comparison to what URI has already paid for their patent applications
and K1DFT's salary, that's not a big deal. It might even be cheaper,
since there's a variety of programs for government facilities to provide
services and such to universities. If the range wasn't otherwise being
used, all the equipment and staff is sitting around anyway, so the
differential cost to run the tests is small.

In other words, to say that "the range performed tests and validated
claims" is probably not technically true. The range performed the
tests, and presumably provided a report of the data they collected. The
validation of claims is up to the person who writes the analytical
report who takes the test data (presumably with it's measurement
uncertainties identified) and shows that test data matches expected
values within experimental error.



From he
http://www.arrlri.org/modules/news/a...php?storyid=12

JS

Jim Lux wrote:

[stuff]

I see!

So now, old Rob-boy has not only whamboozled a whole bunch of Phd's and
physics personnel at URI, he how as a "bunch" of hams from arrlri.org to
carve notches on his pistol grips for ... interesting, the only hams
able to see though his sham are here ... or else, the reverse is true!

As my buddy Arnie would say, "Enteresting, veeerrry enteresting ... "

JS

On 20 Jun, 16:32, John Smith I wrote:
Jim Lux wrote:

[stuff]

I see!

So now, old Rob-boy has not only whamboozled a whole bunch of Phd's and
physics personnel at URI, he how as a "bunch" of hams from arrlri.org to
carve notches on his pistol grips for ... interesting, the only hams
able to see though his sham are here ... or else, the reverse is true!

As my buddy Arnie would say, "Enteresting, veeerrry enteresting ... "

JS

I see that Chip of Fractenna stated that he no longer had any
"scientific
interest" in the antenna after talking at length with the inventor.
Chip is open minded so I am inclined to believe that it does not
increase the state of the art with respect to antennas. The point
is well taken that antennas can achieve great heights of achievements
with respect to radiation but it is quite rare to achieve ALL
desirables at the same time. I believe the ARRL optimised antenna
that I compared my antenna with is a typical example of this and
emphasises where my antenna shined. As far as antennas for amateur
radio
I really don't think there is a market for antennas other than the IR
antenna I went to a couple of ham fests last year and they closed
early
because of the lack of buyers. I suppose ham radio reflects the
veterans
of WW2 where many of those who were doers are gradually dying off
leaving former CBers in the majority.
Regards
Art
Regards
Art

art wrote:

[stuff]

Obviously, all he might have done is found a way to use existing
methods, techniques and knowledge to be able to change the loading and
radiation characteristics ...

However, that might just be enough to be usable. I have needed a
stealth antenna more times than I could shake a stick at. And, smaller
mobile antennas with improved characteristics are always desirable ...

It is easier to bend laws than to break 'em ...

JS

art wrote:

I really don't think there is a market for antennas other than the IR
antenna I went to a couple of ham fests last year and they closed
early because of the lack of buyers.

Most Hamfests these days start too early and end too early. That has
been a trend for several years now.

It's short sighted though. If I want to go to say the Butler or Timonium
Hamfests, both around 2.5 hours from Happy Valley, I have to get up at
around 3 a.m. so I can be there when they open.

Now it's getting to the point that unless you're a local, going to a
Hamfest can be a great way to wreck your weekend. Sheer timing is the
big problem IMO. Not Ebay or the actuarial tables.


I suppose ham radio reflects the
veterans of WW2 where many of those who were doers are gradually dying off
leaving former CBers in the majority.

I suppose that some of the Amateurs in that age group may believe such a
thing. I kind of doubt it is the actual case though.

- 73 de Mike KB3EIA -

Art wrote:
"I suppose ham radio reflects the veterans of WW2 there many of those
who were doers are gradually dying off leaving former CBers in the
majority."
I qualify for all of the above, WW-2 overseas veteran, radio amateur,
CBer, but I`m not dead yet. I also had a 1st class phone license and an
E.E. degree, among others.

Best regards, Richard Harrison, KB5WZI1

John Smith I wrote:

[stuff]

http://www.freepatentsonline.com/7187335.html

JS

John Smith I wrote:
John Smith I wrote:

[stuff]

http://www.freepatentsonline.com/7187335.html

JS

Here is the URL of the actual .pdf document and is chock-full of pics,
details, and description:
http://www.freepatentsonline.com/7187335.pdf

Now there is no reason that anyone cannot confirm or deny the hype ...

JS