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-   -   Amazing (https://www.radiobanter.com/digital/70784-amazing.html)

Hank Oredson May 30th 05 01:29 AM

Which program is doing this research?
I don't find anything on the ACT web site that is even close.

--

... Hank

http://home.earthlink.net/~horedson
http://home.earthlink.net/~w0rli
"Marty Albert" wrote in message
om...
I would love to as soon as the university approves the release...

In the meantime, it is all proprietary and property of the university.

Take Care & 73
--
From The Desk Of
Marty Albert, KC6UFM


"Dana H. Myers" wrote in message
...
Marty Albert wrote:
TDM = Time Domain Multiplexing

WDM = Wide Dimensional Multiplexing

SDM = Statistical Domain Multiplexing.

TDM and, to a limited degree, WDM have been around and used for several
decades in high performance networking. SDM is relatively new, about 5
years.

There are far more ways to multiplex intelligence on a medium than PSK

and
FSK, although both are used in high performance systems.

You are 100% correct... I may very well a few decimal places off... The
mathematical models show that 100 Mbps should be possible in as little

as 10
KHz.


The last time someone made such fantastic claims, they weren't
correctly measuring bandwidth.

Perhaps you'd like to share independently-verifiable references
to your "mathematical models"?

Dana






Marty Albert May 30th 05 02:27 AM

It is joint project between ACT, NPCEO, and NU.

When have you seen a private university system publish their research
projects on a web site?

Take Care & 73

--
From The Desk Of
Marty Albert, KC6UFM




"Hank Oredson" wrote in message
nk.net...
Which program is doing this research?
I don't find anything on the ACT web site that is even close.

--

... Hank

http://home.earthlink.net/~horedson
http://home.earthlink.net/~w0rli
"Marty Albert" wrote in message
om...
I would love to as soon as the university approves the release...

In the meantime, it is all proprietary and property of the university.

Take Care & 73
--
From The Desk Of
Marty Albert, KC6UFM


"Dana H. Myers" wrote in message
...
Marty Albert wrote:
TDM = Time Domain Multiplexing

WDM = Wide Dimensional Multiplexing

SDM = Statistical Domain Multiplexing.

TDM and, to a limited degree, WDM have been around and used for

several
decades in high performance networking. SDM is relatively new, about

5
years.

There are far more ways to multiplex intelligence on a medium than

PSK
and
FSK, although both are used in high performance systems.

You are 100% correct... I may very well a few decimal places off...

The
mathematical models show that 100 Mbps should be possible in as

little
as 10
KHz.

The last time someone made such fantastic claims, they weren't
correctly measuring bandwidth.

Perhaps you'd like to share independently-verifiable references
to your "mathematical models"?

Dana








Hank Oredson May 30th 05 03:47 AM

Most of them at least put the projects and p. investigators, etc.
It's called "advertising" ;-)

But what the heck, maybe something totally amazing that will
blow away all current theories of the transfer of information
across a channel will come from ACT.

Won't hold my breath.

"Exceptional claims require exceptional proof."
So far this is an unfounded rumor.

Gotta run, 6M is open again.

--

... Hank

http://home.earthlink.net/~horedson
http://home.earthlink.net/~w0rli
"Marty Albert" wrote in message
.. .
It is joint project between ACT, NPCEO, and NU.

When have you seen a private university system publish their research
projects on a web site?

Take Care & 73

--
From The Desk Of
Marty Albert, KC6UFM




"Hank Oredson" wrote in message
nk.net...
Which program is doing this research?
I don't find anything on the ACT web site that is even close.

--

... Hank

http://home.earthlink.net/~horedson
http://home.earthlink.net/~w0rli
"Marty Albert" wrote in message
om...
I would love to as soon as the university approves the release...

In the meantime, it is all proprietary and property of the university.

Take Care & 73
--
From The Desk Of
Marty Albert, KC6UFM


"Dana H. Myers" wrote in message
...
Marty Albert wrote:
TDM = Time Domain Multiplexing

WDM = Wide Dimensional Multiplexing

SDM = Statistical Domain Multiplexing.

TDM and, to a limited degree, WDM have been around and used for

several
decades in high performance networking. SDM is relatively new, about

5
years.

There are far more ways to multiplex intelligence on a medium than

PSK
and
FSK, although both are used in high performance systems.

You are 100% correct... I may very well a few decimal places off...

The
mathematical models show that 100 Mbps should be possible in as

little
as 10
KHz.

The last time someone made such fantastic claims, they weren't
correctly measuring bandwidth.

Perhaps you'd like to share independently-verifiable references
to your "mathematical models"?

Dana









Marty Albert May 30th 05 06:13 PM

You are right that "Exceptional claims require exceptional proof."

You are also right that at this time, due to contracts with the private side
investors, the project details can not be made public. After all, when a
group of companies take a look at a research project grant proposal and
decide to give a consortium of schools several million $ to do the research,
they are not doing that because they are the proverbial "Good Corporate
Citizens"... They want to make money on the deal. More precisely, they
EXPECT to make money on the deal.

I don't think (I hope) that the investors will boil me in oil for saying
that Sunday, some of the grad students were working in the Faraday lab and
reached a 5 second burst of 125 Mbps over a 30 meter run in the 10 GHz band
with a 3 db bandwidth of 145 KHz. This has not been verified or replicated
as of yet by another team. Also note that the signal is very, well, messy,
with an unfiltered 65 db bandwidth closer to 145 MHz. However, they used a
fairly sharp band-pass filter when they measured their throughput... At
least according to the report that was sent to me last night.

Again, referring back to the original post in this thread, the thing that I
find amazing and, based on private E-Mail I have received from a number of
lurkers, is the continuing lack of interest in digital modes that is being
perpetuated by narrow lines of thought and an unwillingness to "contribute
to the state of the radio art" in communications systems.

There is an old saying among physicists that "If a distinguished but elderly
physicist tells you that something is possible, you can safely bet that it
is possible... If that same physicist tells you that something in not
possible, you can safely bet that it is possible." I am as guilty of that as
anyone else... When I first read of string theory, I dismissed the concept
less than 100 pages into the thesis. After beating myself up a bit, I went
back, read the entire book plus some additional articles and came to the
conclusion that it is at least as correct as relativity and quantum
mechanics and, actually, fits most observations better than it's older
cousins.

In closing, one final quote for you...

"Man often becomes what he believes himself to be. If I keep on saying to
myself that I cannot do a certain thing, it is possible that I may end by
really becoming incapable of doing it. On the contrary, if I have the belief
that I can do it, I shall surely acquire the capacity to do it even if I may
not have it at the beginning."

I shall leave it to the intrepid to interpret and/or find the author of the
quote.

Take Care & 73
--
From The Desk Of
Marty Albert, KC6UFM



"Hank Oredson" wrote in message
ink.net...
Most of them at least put the projects and p. investigators, etc.
It's called "advertising" ;-)

But what the heck, maybe something totally amazing that will
blow away all current theories of the transfer of information
across a channel will come from ACT.

Won't hold my breath.

"Exceptional claims require exceptional proof."
So far this is an unfounded rumor.

Gotta run, 6M is open again.

--

... Hank

http://home.earthlink.net/~horedson
http://home.earthlink.net/~w0rli
"Marty Albert" wrote in message
.. .
It is joint project between ACT, NPCEO, and NU.

When have you seen a private university system publish their research
projects on a web site?

Take Care & 73

--
From The Desk Of
Marty Albert, KC6UFM




"Hank Oredson" wrote in message
nk.net...
Which program is doing this research?
I don't find anything on the ACT web site that is even close.

--

... Hank

http://home.earthlink.net/~horedson
http://home.earthlink.net/~w0rli
"Marty Albert" wrote in message
om...
I would love to as soon as the university approves the release...

In the meantime, it is all proprietary and property of the

university.

Take Care & 73
--
From The Desk Of
Marty Albert, KC6UFM


"Dana H. Myers" wrote in message
...
Marty Albert wrote:
TDM = Time Domain Multiplexing

WDM = Wide Dimensional Multiplexing

SDM = Statistical Domain Multiplexing.

TDM and, to a limited degree, WDM have been around and used for

several
decades in high performance networking. SDM is relatively new,

about
5
years.

There are far more ways to multiplex intelligence on a medium than

PSK
and
FSK, although both are used in high performance systems.

You are 100% correct... I may very well a few decimal places

off...
The
mathematical models show that 100 Mbps should be possible in as

little
as 10
KHz.

The last time someone made such fantastic claims, they weren't
correctly measuring bandwidth.

Perhaps you'd like to share independently-verifiable references
to your "mathematical models"?

Dana











Hank Oredson May 30th 05 07:50 PM

"Marty Albert" wrote in message
. ..
You are right that "Exceptional claims require exceptional proof."

You are also right that at this time, due to contracts with the private
side
investors, the project details can not be made public. After all, when a
group of companies take a look at a research project grant proposal and
decide to give a consortium of schools several million $ to do the
research,
they are not doing that because they are the proverbial "Good Corporate
Citizens"... They want to make money on the deal. More precisely, they
EXPECT to make money on the deal.


Yeah, right.

I don't think (I hope) that the investors will boil me in oil for saying
that Sunday, some of the grad students were working in the Faraday lab and
reached a 5 second burst of 125 Mbps over a 30 meter run in the 10 GHz
band
with a 3 db bandwidth of 145 KHz. This has not been verified or replicated
as of yet by another team. Also note that the signal is very, well, messy,
with an unfiltered 65 db bandwidth closer to 145 MHz. However, they used a
fairly sharp band-pass filter when they measured their throughput... At
least according to the report that was sent to me last night.


Imagine my surprise at the 145 MHz bandwidth ...
Is someone confusing bits, bauds and symbols?
You "forgot" to mention the S/N ratio, that is ... um ... "important".

Again, referring back to the original post in this thread, the thing that
I
find amazing and, based on private E-Mail I have received from a number of
lurkers, is the continuing lack of interest in digital modes that is being
perpetuated by narrow lines of thought and an unwillingness to "contribute
to the state of the radio art" in communications systems.


Yeah, right ... "Proof by private communication."

There is an old saying among physicists that "If a distinguished but
elderly
physicist tells you that something is possible, you can safely bet that it
is possible... If that same physicist tells you that something in not
possible, you can safely bet that it is possible." I am as guilty of that
as


Let me see, have I said it is "not possible"?

anyone else... When I first read of string theory, I dismissed the concept
less than 100 pages into the thesis. After beating myself up a bit, I went
back, read the entire book plus some additional articles and came to the
conclusion that it is at least as correct as relativity and quantum
mechanics and, actually, fits most observations better than it's older
cousins.


Again, imagine my surprise. Does this communication mechanism
use strings perhaps? Entanglement? FTL propagation?

In closing, one final quote for you...

"Man often becomes what he believes himself to be. If I keep on saying to
myself that I cannot do a certain thing, it is possible that I may end by
really becoming incapable of doing it. On the contrary, if I have the
belief
that I can do it, I shall surely acquire the capacity to do it even if I
may
not have it at the beginning."


Another saying that does not apply.

I shall leave it to the intrepid to interpret and/or find the author of
the
quote.


I wish to purchase some of these devices that beat Shannon.

The fact that the "research" is all secret, with no hint given about
how Shannon and Thermodymics are being bypassed, smells of
either "scam" or "incompetence". The "messy signal" comment
sounds more like a combination of both. "Once we clean up the
signal, then we will get the full data rate in only 145 Khz."

There is a long history of such claims, and, like perpetual motion,
eventually the error in the experiment (or the scam) is discovered.

Instead of talking about the science, you attack the person questioning
your outlandish claims, and continue to babble about how much
money will be made once the secret experiments are finished.
It's a classic ...

Why not discuss the science instead?

Perhaps along the lines of "We have discovered a new coding scheme
that provides a high bit rate with a low symbol rate through a narrow
and noisy channel." Then we could discuss how this new and unique
use of Hadamard transforms will revolutionize cell phones. Or not.

--

... Hank

http://home.earthlink.net/~horedson
http://home.earthlink.net/~w0rli



Alan June 1st 05 07:19 AM

In article "Marty Albert" writes:

You are right that "Exceptional claims require exceptional proof."

You are also right that at this time, due to contracts with the private side
investors, the project details can not be made public. After all, when a
group of companies take a look at a research project grant proposal and
decide to give a consortium of schools several million $ to do the research,
they are not doing that because they are the proverbial "Good Corporate
Citizens"... They want to make money on the deal. More precisely, they
EXPECT to make money on the deal.

I don't think (I hope) that the investors will boil me in oil for saying
that Sunday, some of the grad students were working in the Faraday lab and
reached a 5 second burst of 125 Mbps over a 30 meter run in the 10 GHz band
with a 3 db bandwidth of 145 KHz. This has not been verified or replicated
as of yet by another team. Also note that the signal is very, well, messy,
with an unfiltered 65 db bandwidth closer to 145 MHz. However, they used a
fairly sharp band-pass filter when they measured their throughput... At
least according to the report that was sent to me last night.



Note that when this started out, you said:

In about 1989 there was a local ham (now SK named Frank whose last name and
call I can not remember now) who came to me with a design for a device that
would plug into a 100BaseT NIC and generate low power (about 50 mW as I
recall) at either 70 cm or 23 cm. He wanted my input on the protocol stack
(networking is my thing). Effectively, the device simply sent and received
TCP/IP over an RF Ethernet link. He had built a pair of prototypes that
worked very well. He then built a simple amplifier to get the RF up to about
10 watts and it worked very well between his house and mine, about 8 miles
apart, on J-Poles. We were able to get about 80 Mbps at 23 cm.
...
I wish that I still had the schematic for the prototype that he gave me, but
over the course 15+ years and 3 cross-country moves, I have misplaced them.
It would need significant updating... The prototypes were xtal controlled
and did not use SS. I would think (I am a network engineer, not RF or
electronics!) that the system could benefit from DDS, DSP, and SS
procedures.



This seems somewhat different than the "university research project".

Why the change in story?


Alan

Bill Turner June 18th 05 07:15 PM

Marty Albert wrote:

I am curious as to what people attribute the (apparent) death of
digital systems overall.



_________________________________________________

The "new" has worn off. When a new mode or technique appears, traffic
will pick up again.

--
Bill, W6WRT


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