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#31
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Scott wrote:
Gotcha...that explains it. I personally thought HAARP was a neat concept, especially for hams...man-made aurora!! Not sure if they're still doing research with it or not. Their website seems a bit dated. I copied their test transmission back in 1999 I think it was...pretty nifty! Scott N0EDV Art Deco wrote: Scott wrote: Huh? Maybe we're all talking about different HAARPs. The HAARP I thought was being discussed is at http://www.haarp.alaska.edu/ You are correct; the experiment has attracted every end-of-the-world gloom-and-doom conspiracist on the planet, especially on usenet. One well-known kook even claimed that HAARP was responsible for the loss of Columbia. Thus my comment that any thread with 'HAARP' in the subject line is from a kook (well, at least a 99% chance). Scott Art Deco wrote: HAARP Microwave Beam wrote: HAARP antennae? go to http://haarp-microwave.tripod.com/haarp.html to see what billions of money is going into this weapons program! Note: using the acronym "HAARP" in a post subject line is an automatic kooksign. This should indicate that HAARP is still in bsuiness as a scientific operation. Given the, rather mild for a Haarp item, 'informed' and 'rational' responses I see on this and other newsgroups I would assume they keep a very low profile and are not really outgoing or incoming. The site cited (always wanted to say that) shows you pictures and gives points of access for more information. http://www.livescience.com/technolog...ight_show.html First Artificial Neon Sky Show Created By Robert Roy Britt LiveScience Senior Writer posted: 02 February 2005 02:12 pm ET By shooting intense radio beams into the night sky, researchers created a modest neon light show visible from the ground. The process is not well understood, but scientists speculate it could one day be employed to light a city or generate celestial advertisements. Researchers with the High Frequency Active Auroral Research Program (HAARP) project in Alaska tickled the upper atmosphere to the extent that it glowed with green speckles. The speckles were sprinkled amid a natural display known as the aurora borealis, or Northern Lights. The aurora occurs when electrons from a cloud of hot gas, known as plasma, rain down from space and excite molecules in the ionosphere, about 30 miles (50 kilometers) up. The HAARP experiment involves acres of antennas and a 1 megawatt generator. The scientists sent radio pulses skyward every 7.5 seconds, explained team leader Todd Pederson of the Air Force Research Laboratory. "The radio waves travel up to the ionosphere, where they excite the electrons in the plasma," Pederson told LiveScience. "These electrons then collide with atmospheric gasses, which then give off light, as in a neon tube." Pederson and his colleagues missed the show, but they snapped images. "We unfortunately were indoors watching the data on monitors during the experiment and were busy scrambling trying to make sure the effects were real and not some glitch with the equipment," he said. "We knew right away it was something extraordinary to show up in real time on the monitor against the natural aurora, but did not confirm that it would have been visible to the naked eye until a day or two later when we had a chance to calibrate the raw data." The experiment is detailed in the Feb. 2 issue of the journal Nature. The research could improve understanding of the aurora and also help explain how the ionosphere adversely affects radio communications. It is not yet clear if the aurora must already be active before an artificial sky show can be induced, says Karl Ziemelis, chief physics editor at the journal. If no pre-existing aurora is required, Ziemelis said, "we are left with the tantalizing (some would say disconcerting) possibility that such radio-fuelled emissions could form the basis of a technology for urban lighting, celestial advertising, and more." |
#32
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Thierry - wrote:
"harrogate2" wrote in message ... "Cecil Moore" wrote in message ... Chris wrote: ? Ariceibo? -- 73, Cecil http://www.qsl.net/w5dxp ----== Posted via Newsfeeds.Com - Unlimited-Uncensored-Secure Usenet News==---- http://www.newsfeeds.com The #1 Newsgroup Service in the World! 100,000 Newsgroups ---= East/West-Coast Server Farms - Total Privacy via Encryption =--- As a single antenna, probably. Arecibo remains the largest fixed antenna. The largest steerable is DSN... 70 m Jodrell Bank is 250 foot or 76.2m. -- Peter |
#34
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The last time I was there, the U. of Manchester's big antenna at Jodrell
Bank was "steerable." Perhaps you are thinking of another antenna. Only the feed at Arecibo can be moved. 73 Mac N8TT -- J. Mc Laughlin; Michigan U.S.A. Home: "Wes Stewart" wrote in message ... On Sat, 21 May 2005 19:47:24 snip As a single antenna, probably. Arecibo remains the largest fixed antenna. The largest steerable is DSN... 70 m Jodrell Bank is 250 foot or 76.2m. Arecibo is steerable. |
#35
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On Sat, 21 May 2005 16:36:54 -0400, "J. Mc Laughlin"
wrote: The last time I was there, the U. of Manchester's big antenna at Jodrell Bank was "steerable." Perhaps you are thinking of another antenna. No. Only the feed at Arecibo can be moved. Uh huh. But that moves the beam around. A lot of satellite receivers use fixed reflectors with multiple feeds to look at different satellites. A lot of search and fire control radars also use "fixed" planar antennas with electronic beam steering. I submit that all of these are "steerable." Regards, Wes |
#36
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Dear Mr. Wes Stewart:
I do not see anything in your last message that I disagree with. I have seen the U. of Manchester's antenna move so as to move its beam. 73, Mac N8TT -- J. Mc Laughlin; Michigan U.S.A. Home: "Wes Stewart" wrote in message ... On Sat, 21 May 2005 16:36:54 -0400, "J. Mc Laughlin" wrote: The last time I was there, the U. of Manchester's big antenna at Jodrell Bank was "steerable." Perhaps you are thinking of another antenna. No. Only the feed at Arecibo can be moved. Uh huh. But that moves the beam around. A lot of satellite receivers use fixed reflectors with multiple feeds to look at different satellites. A lot of search and fire control radars also use "fixed" planar antennas with electronic beam steering. I submit that all of these are "steerable." Regards, Wes |
#37
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Dave Holford wrote:
Art Deco wrote: According to an Alaskan local who is a friend of mine, HAARP has almost no funding anymore from DoD, the guards at the front gate spend their time watching cable TV. HAARP is turned on occasionally as a teaching facility for the Univ. of Alaska. I recall reading a couple of magazine articles some years ago when HAARP was active; and in both of them the writers reported the gate was open and there was no one at the gate. I recall one of the writers wandered around until he found someone in a building who showed him around - there were some great photos of the 'huge' antenna system. Dave It must be like that drive-in movie used in "Spies Like Us" or that dry cleaners the 15,000 employees of "The Man from U.N.C.L.E". Tricky part is covering up all the tire tracks the hundreds of employees make when they drive through the snow. http://www.haarp.alaska.edu/haarp/cam.fcgi This is a picture from the HAARP cam, all white, must be snowing. This is a pro-Haarp site http://www.guerrillacampaign.com/Hugh.htm and the power given is less than a megawatt, about what a small UHF TV station might put out, the big ones do 2000 kW. and this is the best satellite image from maps.google http://maps.google.com/maps?q=Gakona...2400&t=k&hl=en |
#38
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Jack Linthicum wrote: Dave Holford wrote: Art Deco wrote: According to an Alaskan local who is a friend of mine, HAARP has almost no funding anymore from DoD, the guards at the front gate spend their time watching cable TV. HAARP is turned on occasionally as a teaching facility for the Univ. of Alaska. I recall reading a couple of magazine articles some years ago when HAARP was active; and in both of them the writers reported the gate was open and there was no one at the gate. I recall one of the writers wandered around until he found someone in a building who showed him around - there were some great photos of the 'huge' antenna system. Dave It must be like that drive-in movie used in "Spies Like Us" or that dry cleaners the 15,000 employees of "The Man from U.N.C.L.E". Tricky part is covering up all the tire tracks the hundreds of employees make when they drive through the snow. http://www.haarp.alaska.edu/haarp/cam.fcgi This is a picture from the HAARP cam, all white, must be snowing. This is a pro-Haarp site http://www.guerrillacampaign.com/Hugh.htm and the power given is less than a megawatt, about what a small UHF TV station might put out, the big ones do 2000 kW. and this is the best satellite image from maps.google http://maps.google.com/maps?q=Gakona...2400&t=k&hl=en This is a pretty chatty source from when it was still under construction: http://www.haarp.alaska.edu/haarp/haarpFactSheet.html |
#39
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In article ,
Wes Stewart wrote: On Sat, 21 May 2005 19:47:24 +0100, (Peter Hayes) wrote: Thierry - wrote: "harrogate2" wrote in message ... "Cecil Moore" wrote in message ... Chris wrote: ? Ariceibo? -- 73, Cecil http://www.qsl.net/w5dxp ----== Posted via Newsfeeds.Com - Unlimited-Uncensored-Secure Usenet News==---- http://www.newsfeeds.com The #1 Newsgroup Service in the World! 100,000 Newsgroups ---= East/West-Coast Server Farms - Total Privacy via Encryption =--- As a single antenna, probably. Arecibo remains the largest fixed antenna. The largest steerable is DSN... 70 m Jodrell Bank is 250 foot or 76.2m. Arecibo is steerable. Actually it is slightly steerable...just over about 15 degrees of vertical, and the antenna gain drops off, quickly as the the angle leaves vertical. This is due to the movement of the Feed Horn Assembly offcenter on its Trolly Wire Supports. Me |
#40
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In article .com,
"Jack Linthicum" wrote: http://maps.google.com/maps?q=Gakona...1238&spn=0.025 578,0.042400&t=k&hl=en This is a pretty chatty source from when it was still under construction: http://www.haarp.alaska.edu/haarp/haarpFactSheet.html News Flash....HAARP is still under construction...... as the final array will not be finished and powered until 2006...... Me |
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