Hey, whatever happened to that great antenna coming out of the
University of Rhode Island. You know the one that was invented either by
a technician or some Ph.D.. (the story got changed somewhere along the
line)



- Mike KB3EIA -

"Mike Coslo" wrote
Hey, whatever happened to that great antenna coming out of the
University of Rhode Island. You know the one that was invented either by
a technician or some Ph.D.. (the story got changed somewhere along the
line)
- Mike KB3EIA -

The last we heard, the antenna and it's Father had been nominated for the
Nobel Peace Prize, and were currently touring in Africa, where the antenna
was being investigated for it's potential use in curing aids and feeding the
hungry. It's a shame, but we may never see this wunderantenna stateside
again. It will probably be cannonized by it's Italian EH brothers and only
available through special internet offers. If we're lucky.

Jack

"Mike Coslo" wrote
Hey, whatever happened to that great antenna coming out of the
University of Rhode Island. You know the one that was invented either by
a technician or some Ph.D.. (the story got changed somewhere along the
line)
- Mike KB3EIA -

The last we heard, the antenna and it's Father had been nominated for the
Nobel Peace Prize, and were currently touring in Africa, where the antenna
was being investigated for it's potential use in curing aids and feeding the
hungry. It's a shame, but we may never see this wunderantenna stateside
again. It will probably be cannonized by it's Italian EH brothers and only
available through special internet offers. If we're lucky.

Jack


Mr. Vincent appears, based on his public statements, to be planning a roll out
coinciding with the August ARRL New England Boxboro convention (August 14 I
believe). I could provide a link, but I just checked it and it is down.

Just so it is known accurately, there is(are) no patent(s) on Mr. Vincent's
antennas.

I suspect he will have some high quality data to show --I am not convinced,
based upon his public comments, that he has become sufficiently aware of the
state of the art of monopoles, nor that he is fully schooled in the prior art
of distributed loading. This is my opinion. Of course, he may have sought such
knowledge since 4 June, which would be most admirable.

For example, one of the principle themes in his comments is that 'my designs
require a fraction of the loading of conventional monopoles'. One thus is led
to believe--again, my opinion- that the reactance has disappeared in some way.
In fact, if you compare with mid-loaded designs of straight short monopoles,
there is less of a coil load--but this is only for THAT coil: he has used a
helix, instead of a straight wire, upon which to place that loading coil. There
is STILL AS MUCH IF NOT MORE loading with such a design; its just not forced
onto a single coil. THERE IS STILL OHMIC LOSS in such designs--it hasn't gone
away. Ohmic loss means a departure from 'high efficiency'. I suspect he has no
data on efficiency, but has tried to infer it instead. It would be refreshing
to see that this is not the case.

He also claims 'wide and excellent bandwidth'. In fact, better bandwith is an
intrinsic property of mid-section coil loading, as shown by R.C.Hansen many
years ago, and well known to many monopole designers. However, the 'excellent
and wide' bandwidth is only a few percent at best: this is NOT a monopole that
works over decades of frequency, nor even many different ham bands in a
controlled way.

There are many past examples of Mr. Vincent's comments that indicate, in my
opinion, that what he has is not novel. Again: my opinion. This is from someone
who is skilled in the art.

After the roll-out, if Mr. Vincent has not been able to come up the learning
curve sufficiently, I will publicly disclose additional factual corrections and
comments regarding the DLM antenna, and prior art. Of course, this is not a
reflection of Mr. Vincent nor his efforts, but a friendly and technical insight
into what's possible and a glimpse of what's already been done.

In defense of Mr. Vincent, I am strongly of the opinion that what he has done
is not 'snake oil', and it is deleterious to ham radio for some to be so verbal
and public in this characterization. However, the question is whether the
technology does something new and in some novel way. That is a valid question
to ask and I suspect will be answered, over time, in the negative--again, my
opinion.

73, Chip N1IR

Fractenna wrote:
"Mike Coslo" wrote

Hey, whatever happened to that great antenna coming out of the
University of Rhode Island. You know the one that was invented either by
a technician or some Ph.D.. (the story got changed somewhere along the
line)
- Mike KB3EIA -

The last we heard, the antenna and it's Father had been nominated for the
Nobel Peace Prize, and were currently touring in Africa, where the antenna
was being investigated for it's potential use in curing aids and feeding the
hungry. It's a shame, but we may never see this wunderantenna stateside
again. It will probably be cannonized by it's Italian EH brothers and only
available through special internet offers. If we're lucky.

Jack



Mr. Vincent appears, based on his public statements, to be planning a roll out
coinciding with the August ARRL New England Boxboro convention (August 14 I
believe). I could provide a link, but I just checked it and it is down.

Just so it is known accurately, there is(are) no patent(s) on Mr. Vincent's
antennas.

I suspect he will have some high quality data to show --I am not convinced,
based upon his public comments, that he has become sufficiently aware of the
state of the art of monopoles, nor that he is fully schooled in the prior art
of distributed loading. This is my opinion. Of course, he may have sought such
knowledge since 4 June, which would be most admirable.

For example, one of the principle themes in his comments is that 'my designs
require a fraction of the loading of conventional monopoles'. One thus is led
to believe--again, my opinion- that the reactance has disappeared in some way.
In fact, if you compare with mid-loaded designs of straight short monopoles,
there is less of a coil load--but this is only for THAT coil: he has used a
helix, instead of a straight wire, upon which to place that loading coil. There
is STILL AS MUCH IF NOT MORE loading with such a design; its just not forced
onto a single coil. THERE IS STILL OHMIC LOSS in such designs--it hasn't gone
away. Ohmic loss means a departure from 'high efficiency'. I suspect he has no
data on efficiency, but has tried to infer it instead. It would be refreshing
to see that this is not the case.

He also claims 'wide and excellent bandwidth'. In fact, better bandwith is an
intrinsic property of mid-section coil loading, as shown by R.C.Hansen many
years ago, and well known to many monopole designers. However, the 'excellent
and wide' bandwidth is only a few percent at best: this is NOT a monopole that
works over decades of frequency, nor even many different ham bands in a
controlled way.

There are many past examples of Mr. Vincent's comments that indicate, in my
opinion, that what he has is not novel. Again: my opinion. This is from someone
who is skilled in the art.

After the roll-out, if Mr. Vincent has not been able to come up the learning
curve sufficiently, I will publicly disclose additional factual corrections and
comments regarding the DLM antenna, and prior art. Of course, this is not a
reflection of Mr. Vincent nor his efforts, but a friendly and technical insight
into what's possible and a glimpse of what's already been done.

In defense of Mr. Vincent, I am strongly of the opinion that what he has done
is not 'snake oil', and it is deleterious to ham radio for some to be so verbal
and public in this characterization. However, the question is whether the
technology does something new and in some novel way. That is a valid question
to ask and I suspect will be answered, over time, in the negative--again, my
opinion.


Thanks for the in-depth answer, Chip. I'll be waiting for the
convention. This and your other post a while back gives me an idea of
what to expect. Perhaps the antenna does indeed work in it's fashion,
and is the victim of the "hype machine". It will be interesting to see
how closely it resembles what was described in your earlier post.

- Mike KB3EIA -

Jack Painter wrote:
"Mike Coslo" wrote

Hey, whatever happened to that great antenna coming out of the
University of Rhode Island. You know the one that was invented either by
a technician or some Ph.D.. (the story got changed somewhere along the
line)
- Mike KB3EIA -


The last we heard, the antenna and it's Father had been nominated for the
Nobel Peace Prize, and were currently touring in Africa, where the antenna
was being investigated for it's potential use in curing aids and feeding the
hungry. It's a shame, but we may never see this wunderantenna stateside
again. It will probably be cannonized by it's Italian EH brothers and only
available through special internet offers. If we're lucky.

Exactly as I thought! ;^)

- Mike KB3EIA -