From URL:

http://www.haarp.alaska.edu/haarp/haarpFactSheet.html

Since the sun's radiation creates and maintains the ionosphere, sudden
variations in this radiation such as those caused by solar flares can affect
the performance of radio systems. Sometimes these natural changes are
sufficient to induce large transient currents in electric power transmission
grids, causing widespread power outages. Lightning is known to cause
substantial heating and ionization density enhancement in the lower
ionosphere, and there are indications that ground-based HF transmitters,
including radars and strong radio stations, also modify the ionosphere and
influence the performance of systems whose radio paths traverse the modified
region. Perhaps the most famous example of the latter is the "Luxembourg"
effect, first observed in 1933. In this case a weak Swiss radio station
appeared to be modulated with signals from the powerful Luxembourg station,
which was transmitting at a completely different frequency. Music from the
Luxembourg station was picked up at the frequency of the Swiss station.


--
The Anon Keyboard
I doubt, therefore I might be



"dxAce" wrote in message
...


Richard wrote:

Yes LDE's were previously called the "Luxembourg effect" and were first
noted in the 1930s!!!

The 'Luxembourg effect' has nothing whatsoever to do with LDE's.

dxAce
Michigan
USA



Rgds
Richard, SO5GB

"Michael" wrote in message
. net...
Quick question here...

I've read about LDE a number of times and have even heard Art Bell talk
about it on Coast To Coast.

I've been thinking that it might be a product of the electronic
equipment
itself, rather then any kind of outlandish atmospheric/propagation
condition.

My question... Has LDE ever been noticed or logged prior to the days of
solid state and computer chip rigs ??? I'd love to know the first
known
observations of this phenomenon.

Any help on this question would be enormously appreciated.
--
Respectfully,

Michael

Location: New Jersey
Primary Receiver: R-75 with full Kiwa mods
Antennas: G5RV, 200ft "Frankenstein" roof wire
Additional Radios: 7600GR,KA-1101,KA-1102
PL-550, KA-989, Info-Mate 837, GE-SR III
Westinghouse H-104 (seven tube)
Web Site: http://md_dxing.tripod.com

Keyboard In The Wilderness wrote:

From URL:

http://www.haarp.alaska.edu/haarp/haarpFactSheet.html

Since the sun's radiation creates and maintains the ionosphere, sudden
variations in this radiation such as those caused by solar flares can affect
the performance of radio systems. Sometimes these natural changes are
sufficient to induce large transient currents in electric power transmission
grids, causing widespread power outages. Lightning is known to cause
substantial heating and ionization density enhancement in the lower
ionosphere, and there are indications that ground-based HF transmitters,
including radars and strong radio stations, also modify the ionosphere and
influence the performance of systems whose radio paths traverse the modified
region. Perhaps the most famous example of the latter is the "Luxembourg"
effect, first observed in 1933. In this case a weak Swiss radio station
appeared to be modulated with signals from the powerful Luxembourg station,
which was transmitting at a completely different frequency. Music from the
Luxembourg station was picked up at the frequency of the Swiss station.

Yes, but still nothing to do with LDE's. The Luxembourg Effect is something
totally different.

dxAce
Michigan
USA



--
The Anon Keyboard
I doubt, therefore I might be

"dxAce" wrote in message
...


Richard wrote:

Yes LDE's were previously called the "Luxembourg effect" and were first
noted in the 1930s!!!

The 'Luxembourg effect' has nothing whatsoever to do with LDE's.

dxAce
Michigan
USA



Rgds
Richard, SO5GB

"Michael" wrote in message
. net...
Quick question here...

I've read about LDE a number of times and have even heard Art Bell talk
about it on Coast To Coast.

I've been thinking that it might be a product of the electronic
equipment
itself, rather then any kind of outlandish atmospheric/propagation
condition.

My question... Has LDE ever been noticed or logged prior to the days of
solid state and computer chip rigs ??? I'd love to know the first
known
observations of this phenomenon.

Any help on this question would be enormously appreciated.
--
Respectfully,

Michael

Location: New Jersey
Primary Receiver: R-75 with full Kiwa mods
Antennas: G5RV, 200ft "Frankenstein" roof wire
Additional Radios: 7600GR,KA-1101,KA-1102
PL-550, KA-989, Info-Mate 837, GE-SR III
Westinghouse H-104 (seven tube)
Web Site: http://md_dxing.tripod.com

"Michael" wrote in message
. net...
Quick question here...

I've read about LDE a number of times and have even heard Art Bell talk
about it on Coast To Coast.

I've been thinking that it might be a product of the electronic equipment
itself, rather then any kind of outlandish atmospheric/propagation
condition.

My question... Has LDE ever been noticed or logged prior to the days of
solid state and computer chip rigs ??? I'd love to know the first known
observations of this phenomenon.


I've read that LDEs were first observed during the ionospheric reasearch of
the 1920s.



Any help on this question would be enormously appreciated.


Very long delayed echos, on the order of a few minutes, have also been
claimed. One theory has it that there's an alien repeater in lunar
synchronous orbit.

Frank Dresser

Agreed -- just clarifying what the "Luxembourg
effect" is

--
The Anon Keyboard
I doubt, therefore I might be



"dxAce" wrote in message
...


Keyboard In The Wilderness wrote:

From URL:

http://www.haarp.alaska.edu/haarp/haarpFactSheet.html

Since the sun's radiation creates and maintains the ionosphere, sudden
variations in this radiation such as those caused by solar flares can
affect
the performance of radio systems. Sometimes these natural changes are
sufficient to induce large transient currents in electric power
transmission
grids, causing widespread power outages. Lightning is known to cause
substantial heating and ionization density enhancement in the lower
ionosphere, and there are indications that ground-based HF transmitters,
including radars and strong radio stations, also modify the ionosphere
and
influence the performance of systems whose radio paths traverse the
modified
region. Perhaps the most famous example of the latter is the "Luxembourg"
effect, first observed in 1933. In this case a weak Swiss radio station
appeared to be modulated with signals from the powerful Luxembourg
station,
which was transmitting at a completely different frequency. Music from
the
Luxembourg station was picked up at the frequency of the Swiss station.

Yes, but still nothing to do with LDE's. The Luxembourg Effect is
something
totally different.

dxAce
Michigan
USA



--
The Anon Keyboard
I doubt, therefore I might be

"dxAce" wrote in message
...


Richard wrote:

Yes LDE's were previously called the "Luxembourg effect" and were
first
noted in the 1930s!!!

The 'Luxembourg effect' has nothing whatsoever to do with LDE's.

dxAce
Michigan
USA



Rgds
Richard, SO5GB

"Michael" wrote in message
. net...
Quick question here...

I've read about LDE a number of times and have even heard Art Bell
talk
about it on Coast To Coast.

I've been thinking that it might be a product of the electronic
equipment
itself, rather then any kind of outlandish atmospheric/propagation
condition.

My question... Has LDE ever been noticed or logged prior to the days
of
solid state and computer chip rigs ??? I'd love to know the first
known
observations of this phenomenon.

Any help on this question would be enormously appreciated.
--
Respectfully,

Michael

Location: New Jersey
Primary Receiver: R-75 with full Kiwa mods
Antennas: G5RV, 200ft "Frankenstein" roof wire
Additional Radios: 7600GR,KA-1101,KA-1102
PL-550, KA-989, Info-Mate 837, GE-SR III
Westinghouse H-104 (seven tube)
Web Site: http://md_dxing.tripod.com

Keyboard In The Wilderness wrote:

Agreed -- just clarifying what the "Luxembourg
effect" is

Understood.

dxAce
Michigan
USA



--
The Anon Keyboard
I doubt, therefore I might be

"dxAce" wrote in message
...


Keyboard In The Wilderness wrote:

From URL:

http://www.haarp.alaska.edu/haarp/haarpFactSheet.html

Since the sun's radiation creates and maintains the ionosphere, sudden
variations in this radiation such as those caused by solar flares can
affect
the performance of radio systems. Sometimes these natural changes are
sufficient to induce large transient currents in electric power
transmission
grids, causing widespread power outages. Lightning is known to cause
substantial heating and ionization density enhancement in the lower
ionosphere, and there are indications that ground-based HF transmitters,
including radars and strong radio stations, also modify the ionosphere
and
influence the performance of systems whose radio paths traverse the
modified
region. Perhaps the most famous example of the latter is the "Luxembourg"
effect, first observed in 1933. In this case a weak Swiss radio station
appeared to be modulated with signals from the powerful Luxembourg
station,
which was transmitting at a completely different frequency. Music from
the
Luxembourg station was picked up at the frequency of the Swiss station.

Yes, but still nothing to do with LDE's. The Luxembourg Effect is
something
totally different.

dxAce
Michigan
USA



--
The Anon Keyboard
I doubt, therefore I might be

"dxAce" wrote in message
...


Richard wrote:

Yes LDE's were previously called the "Luxembourg effect" and were
first
noted in the 1930s!!!

The 'Luxembourg effect' has nothing whatsoever to do with LDE's.

dxAce
Michigan
USA



Rgds
Richard, SO5GB

"Michael" wrote in message
. net...
Quick question here...

I've read about LDE a number of times and have even heard Art Bell
talk
about it on Coast To Coast.

I've been thinking that it might be a product of the electronic
equipment
itself, rather then any kind of outlandish atmospheric/propagation
condition.

My question... Has LDE ever been noticed or logged prior to the days
of
solid state and computer chip rigs ??? I'd love to know the first
known
observations of this phenomenon.

Any help on this question would be enormously appreciated.
--
Respectfully,

Michael

Location: New Jersey
Primary Receiver: R-75 with full Kiwa mods
Antennas: G5RV, 200ft "Frankenstein" roof wire
Additional Radios: 7600GR,KA-1101,KA-1102
PL-550, KA-989, Info-Mate 837, GE-SR III
Westinghouse H-104 (seven tube)
Web Site: http://md_dxing.tripod.com

In message , dxAce
writes


Keyboard In The Wilderness wrote:

Agreed -- just clarifying what the "Luxembourg
effect" is

Understood.

I heard my own signals returned as a LDE sometime in the50's shortly
after I was licenced. I was on 20m late at night and sent out a standard
3x3 CQ. When I went to receive I heard the last part of my CQ coming
back with a very ghostly tone "....CQ de GW3IJE GW3IJE GW3IJE AR K".
Just like aurora which I didn't hear until many years later.

Mike
--
M.J.Powell

You can find more reading on LDE's at URL:

http://ac6v.com/propagation.htm#LDE
--
The Anon Keyboard
I doubt, therefore I might be



"M. J. Powell" wrote in message
...

I heard my own signals returned as a LDE sometime in the50's shortly after
I was licenced. I was on 20m late at night and sent out a standard 3x3 CQ.
When I went to receive I heard the last part of my CQ coming back with a
very ghostly tone "....CQ de GW3IJE GW3IJE GW3IJE AR K". Just like aurora
which I didn't hear until many years later.

Mike
--
M.J.Powell

I rememmber Art Bell a few weeks ago had recordings of the LDE and the
HAM radio signals which he played on the air.. even mixing in with the
bumper music :P



"M. J. Powell" wrote in message ...
In message , dxAce
writes


Keyboard In The Wilderness wrote:

Agreed -- just clarifying what the "Luxembourg
effect" is

Understood.

I heard my own signals returned as a LDE sometime in the50's shortly
after I was licenced. I was on 20m late at night and sent out a standard
3x3 CQ. When I went to receive I heard the last part of my CQ coming
back with a very ghostly tone "....CQ de GW3IJE GW3IJE GW3IJE AR K".
Just like aurora which I didn't hear until many years later.

Mike

Art did? Did you catch any callsigns ? It may have been my recording.
He asked me to forward them to him about a month ago or more.



On 24 Oct 2004 12:01:45 -0700, (RedOctober90)
wrote:

I rememmber Art Bell a few weeks ago had recordings of the LDE and the
HAM radio signals which he played on the air.. even mixing in with the
bumper music :P



"M. J. Powell" wrote in message ...
In message , dxAce
writes


Keyboard In The Wilderness wrote:

Agreed -- just clarifying what the "Luxembourg
effect" is

Understood.

I heard my own signals returned as a LDE sometime in the50's shortly
after I was licenced. I was on 20m late at night and sent out a standard
3x3 CQ. When I went to receive I heard the last part of my CQ coming
back with a very ghostly tone "....CQ de GW3IJE GW3IJE GW3IJE AR K".
Just like aurora which I didn't hear until many years later.

Mike