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★阿修羅♪
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(回答先: ニューオリンズのハリケーン被災地での意図的な通信妨害と携帯通信障害 投稿者 サラ 日時 2005 年 9 月 03 日 02:46:30)
きのうのニュースに関して、ウエィン・マドセン・リポートによると、この無線妨害が海軍の船上から発信されているらしいことがわかった。
イラクで使われているのと同じ原理だそうである。しかし、何故海軍が救援活動の妨害になることをしているのであろうか？これはあらかじめ仕組まれたシナリオなのであろうか？（その匂いがするが）
http://www.waynemadsenreport.com/
However, we now have a new unconfirmed report that the culprit may be the Pentagon itself. The emitter is an IF (Intermediate Frequency) jammer that is operating south southwest of New Orleans on board a U.S. Navy ship, according to an anonymous source.
The jamming is cross-spectrum and interfering with superheterodyne receiver components, including the emergency radios being used in New Orleans relief efforts. The jamming frequencies are:72.0MHZ, 45.0MHZ,10.245MHZ,10.240 Mhz,11.340 Mhz, 455 IF 233 MHZ
A former DoD source says the U.S. Army uses a portable jammer, known as WORLOCK, in Iraq and this jammer may be similar to the one that is jamming the emergency frequencies
If a U.S. Navy ship is, in fact, jamming New Orleans communications, the crew must immediately shut down the jammer and take action against the Commanding Officer.
海軍は潜水艦との通信のためにＥＬＦを使用しているらしいが、これと今回のハリケーンは関係があるのではないだろうか？
ＨＡＡＲＰの研究開発も空軍から海軍の管轄になったといういきさつもある。
どうもこの通信妨害と海軍というのがＨＡＡＲＰがらみで気になる。
ＥＬＦに関して （ＨＡＡＲＰアラスカの記事より抜粋）
http://www.haarp.alaska.edu/haarp/elf.html
Extremely Low Frequencies (ELF)
ELF and Band Designators
The acronym ELF, which stands for Extremely Low Frequencies, is one of a number of band designators defined by the Institute of Electrical and Electronics Engineers (IEEE) to name bands or ranges of the electromagnetic frequency spectrum. Some of the other designators, along with services or applications that use that frequency range are given in the following summary:
In some references, the entire frequency range between 3 Hz and 3kHz is called ELF, with ULF applying to all frequencies below 3 Hz.
The Navy's ELF Communication System
The ELF frequency range is critically important to the Navy because of its value in providing a way to communicate with submerged submarines. As a result of the high electrical conductivity of sea water, signals attenuate (or decrease) rapidly as they propagate downward through it. In effect, the sea water "hides" the submarine from detection while simultaneously preventing it from communicating with the outside world through normal radio transmissions.
The degree to which a signal is attenuated depends on its frequency, however. The lower the frequency, the more deeply a signal can be received in sea water. In order to receive conventional radio transmissions a submarine must travel at slow speeds and be near the surface of the water. Both of these situations make a submarine more susceptible to enemy detection. Frequencies in the ELF range, however, can be received considerably deeper, and broadcasts using this mode provide a primary link between the nation's commander-in-chief and the submarine force.
One of the great difficulties associated with the use of ELF for communication purposes, is the problem of generating a useful signal. The physical size of an antenna that can produce a useable signal with reasonable efficiency is inversely proportional to the frequency. For example, an antenna useful for cellular telephone frequencies, need only be several inches long to be completely effective. At ELF, on the other hand, a reasonably efficient antenna must be quite large.
The ELF system, which became operational in 1989, uses two transmitting antennas, one in Wisconsin and one in Michigan. The two sites must operate simultaneously to meet worldwide coverage requirements. Each antenna looks like a power line, mounted on wooden poles. The Wisconsin antenna consists of two lines, each about 14 miles long. The Michigan antenna uses three lines, two about 14 miles long and one about 28 miles long. Each site has a transmitter building near the antenna. The transmitter facility in Michigan uses about six acres of land and the one in Wisconsin about two acres. The operating frequency is 76 Hz.
ところで、ＨＡＡＲＰは空軍から海軍の管轄に入っているといわれているが、洋上から何かやっている可能性がある。ＥＬＦ（超低周波）は主に海軍で使われているとのこと。
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