Archiv: elektromagnetische Strahlung / Abstrahlung / electromagnetic radiation


18.01.2024 - 03:45 [ MilitaryTimes.com ]

The fight in Gaza will be hell, military experts in urban combat say

(20.10.2023)

Yahalom Unit: a specialized Israeli Defense Forces combat engineering corps commando unit trained to find, clear and destroy tunnels. The unit is one of the largest in the world focused on underground warfare.

The Yahalom carries a toolkit of specialized gear for such operations, including ground and aerial sensors, ground-penetrating radar, drilling equipment, radios and navigation equipment designed for use underground, thermal equipment and a suite of flying and ground robots for mapping tunnels. Once discovered, the unit has ground-penetrating munitions such as the GBU-28, which can penetrate 100 feet of soil or 20 feet of concrete.

18.01.2024 - 00:44 [ Radio Utopie ]

DER MOBILE TELEVISOR (III): “Boden durchdringender Radar” aus Luftraum und Orbit

(17. Februar 2013)

Die optische Auflösung von Bildern mobiler “Televisoren” (durch Materialien sehender visueller Erfassungsapparaturen) hängt grundsätzlich von der Wellenlänge / Frequenz ab und nimmt mit zunehmender Wellenlänge (d.h.: abnehmender Frequenz) ab.

Für potentiell flächendeckende Durchleuchtung von Metropolen mit ihren tausenden Gebäuden und Kellerräumen bietet sich – wenn auch nicht mit gleicher optischer Auflösung wie bei unmittelbarer Nähe des Zielobjekts und Verwendung von hochfrequenter elektromagnetischer Strahlung – der Einsatz von etwas niedriger frequenten Millimeterwellen aus der Luft an, etwa durch Drohnen. Bereits im September 2008 hatte das U.S.-Militär, nach jahrelanger und in Zeiten des “Antiterrorismus” massiv finanziell geförderter Forschung, an die Presse dringen lassen, man setze in Kriegsgebieten Drohnen mit Überwachungstechnologien ein, die “das Verfolgen von menschlichen Zielen erlauben, selbst wenn sie in Gebäuden oder auf andere Art versteckt sind”.

10.11.2023 - 09:06 [ Wikipedia ]

The Thing (listening device)

The Thing, also known as the Great Seal bug, was one of the first covert listening devices (or „bugs“) to use passive techniques to transmit an audio signal. It was concealed inside a gift given by the Soviet Union to W. Averell Harriman, the United States Ambassador to the Soviet Union, on August 4, 1945. Because it was passive, needing electromagnetic energy from an outside source to become energized and activate, it is considered a predecessor of Radio-Frequency Identification (RFID) technology.

21.10.2023 - 20:51 [ National Aeronautics and Space Administration ]

NASA’s Laser Communications Relay: A Year of Experimentation

(Jun 28, 2023)

The Laser Communications Relay Demonstration (LCRD) uses infrared light, or invisible lasers, to transmit and receive signals rather than radio wave systems conventionally used on spacecraft. Infrared light’s tight wavelengths allow space missions to pack significantly more data – 10 to 100 times more – into a single transmission. More data means more discoveries.

Now, at the halfway point in its experimentation phase, LCRD has shown laser communications’ significant advantages over traditional radio wave systems.

21.10.2023 - 16:14 [ ORF.at ]

Forschung als Friedensprojekt

SESAME ist ein Zentrum der Materialforschung. Die im Elektronensynchrotron beschleunigten Teilchen erzeugen elektromagnetische Strahlung in allen Frequenzbereichen – und diese wird verwendet, um Materialien aller Art zu durchleuchten. Das können archäologische Artefakte oder Gewebsproben von Lebewesen sein .

01.07.2023 - 17:20 [ Nature.com ]

Giant gravitational waves: why scientists are so excited

On 29 June, four separate teams of scientists made an announcement1–4 that promises to shake up astrophysics: they had seen strong hints of very long gravitational waves warping the Galaxy.

Gravitational waves are ripples in the fabric of space-time that are generated when large masses accelerate. They were first detected in 2015, but the latest evidence hints at ‘monster’ ripples with wavelengths of 0.3 parsecs (1 light year) or more; the waves detected until now have wavelengths of tens to hundreds of kilometres.

Here Nature reports what these monster gravitational waves could mean for our understanding of the cosmos, and how the field could evolve.

01.07.2023 - 17:05 [ New York Times ]

The Cosmos Is Thrumming With Gravitational Waves, Astronomers Find

(June 28, 2023)

The scientists strongly suspect that these gravitational waves are the collective echo of pairs of supermassive black holes — thousands of them, some as massive as a billion suns, sitting at the hearts of ancient galaxies up to 10 billion light-years away — as they slowly merge and generate ripples in space-time.

“I like to think of it as a choir, or an orchestra,” said Xavier Siemens, a physicist at Oregon State University who is part of the North American Nanohertz Observatory for Gravitational Waves, or NANOGrav, collaboration, which led the effort. Each pair of supermassive black holes is generating a different note, Dr. Siemens said, “and what we’re receiving is the sum of all those signals at once.”

01.07.2023 - 16:50 [ Institute of Physics - IOP.org ]

Searching for the Nano-Hertz Stochastic Gravitational Wave Background with the Chinese Pulsar Timing Array Data Release I

(Published 29 June 2023)

Observing and timing a group of millisecond pulsars with high rotational stability enables the direct detection of gravitational waves (GWs). The GW signals can be identified from the spatial correlations encoded in the times-of-arrival of widely spaced pulsar-pairs. The Chinese Pulsar Timing Array (CPTA) is a collaboration aiming at the direct GW detection with observations carried out using Chinese radio telescopes. This short article serves as a „table of contents“ for a forthcoming series of papers related to the CPTA Data Release 1 (CPTA DR1) which uses observations from the Five-hundred-meter Aperture Spherical radio Telescope. (…)

A Pulsar Timing Array (PTA; Foster & Backer 1990) is an array of pulsars, which are regularly observed. The times-of-arrival (TOAs) are measured for pulses that we see beams of electromagnetic waves emitted by the pulsars sweeping over the Earth. As the directions of the radiation beam and the pulsar rotational axis do not coincide, we observe this radiation as regular pulses synchronized to the pulsar rotation (Gold 1969).

25.06.2023 - 12:35 [ Times of Israel ]

Russia says military coordination with Israel in Syria will continue as usual

(27 February 2022)

Russia is a main player backing the Syrian government in a grinding civil war, while Israel has waged a years-long campaign of airstrikes aimed at pro-Iranian fighters located there and at preventing the transfer of Iranian-supplied weaponry.

“Our military officials discuss the practical issues of this substantively on a daily basis. This mechanism has proven to be useful and will continue to work,” the Russian embassy said in a statement to The Times of Israel.

25.06.2023 - 12:27 [ Jerusalem Post ]

‚Israel, Russia to coordinate in air, sea, and electromagnetic arena‘

(October 27, 2015)

In Russia, Eisenkot met with his Russian counterpart, General Valery Vasilevich Gerasimov – the first time chiefs of staff from Russia and Israel held a direct meeting in Moscow. Eisenkot also participated in part of the meeting held between Netanyahu and Russian President Vladimir Putin. Afterward, the two sides agreed to set up a joint working group led by the deputy chiefs of staff from each country.

04.04.2023 - 06:40 [ Haaretz ]

U.S. Used Front Company to Buy Israeli NSO’s Spyware, Report Says

The Times’ investigation, published early Monday, revealed that five days after the Biden administration announced the blacklisting of NSO for activities contrary to the United States’ national security or foreign policy interests, the U.S. purchased a different software from NSO via a front company.

The software is known as “Landmark,” a geolocation system that reveals the exact location of a person by inputting their phone number.

The report comes one week after U.S. President Joe Biden signed an executive order banning the use of commercial spyware by the American government.

11.03.2023 - 15:20 [ FoxBusiness.com ]

China’s newest weapon to nab Western technology – its courts

(February 20, 2023)

AS&E devised a product to complement the machines it made for airports and seaports. It placed a low-powered X-ray machine on the back of a Ford Motor Co. chassis. The U.S. military used the mobile scanner to detect improvised explosive devices during the wars in Afghanistan and Iraq, the company said. Domestic law enforcement could disguise the vehicle as a delivery van and use it to scan cars in, say, a stadium parking lot.

The X-ray van, called the ZBV, made its debut in 2003. Michael Tropeano, general manager of AS&E’s cargo-scanning division, said he thought the product would be a winner from day one.

30.01.2023 - 19:21 [ theDrive.com ]

M1 Abrams Tank Tested With New System That Prevents It From Being Hacked

(Feb 15, 2022)

In the demonstration, an M1A2 Abrams tank was fitted with a 1553 Bus Defender system made by Peraton. The Bus Defender is an intrusion detection and prevention system that can defeat cyberattacks aimed at a platform’s data bus, a hardware subsystem that handles the transfer of data both in and out of associated systems. All transmissions between other military assets including satellites, off-board sensors, communication systems, weapons, unmanned vehicles, and more are handled by the data bus. The Department of Defense and NASA use the MIL-STD-1553 data bus, first developed in 1975.

26.01.2023 - 16:47 [ Wikipedia ]

The Thing (listening device)

The Thing, also known as the Great Seal bug, was one of the first covert listening devices (or „bugs“) to use passive techniques to transmit an audio signal. It was concealed inside a gift given by the Soviet Union to W. Averell Harriman, the United States Ambassador to the Soviet Union, on August 4, 1945. Because it was passive, needing electromagnetic energy from an outside source to become energized and activate, it is considered a predecessor of Radio-Frequency Identification (RFID) technology.

30.12.2022 - 17:43 [ Netzpolitik.org ]

Wie im Gangster-Film: Firma will Überwachungskameras für Geheimdienste manipulieren

Auch mit Deutschland soll es zumindest Gespräche gegeben haben, geht aus den Haaretz vorliegenden Dokumenten hervor. Neben den USA und Australien soll es zudem Kontakt mit Singapur gegeben haben, einem nicht-demokratischen Staat. Ob die Länder tatsächlich Produkte von Toka einsetzen, ist nicht bekannt.

Der Markt für vernetzte Geräte wie Videokameras, Kühlschränke und Autos wächst seit Jahren kontinuierlich an.

25.12.2022 - 04:26 [ Haaretz ]

Revealed: The Israeli Firm Selling ‘Dystopian’ Hacking Capabilities

According to a company pitch deck obtained by Haaretz, Toka offers what it terms “previously out-of-reach capabilities” that “transform untapped IoT sensors into intelligence sources,” and can be used “for intelligence and operational needs.” (IoT stands for Internet of Things and refers here to web-connected cameras and even car media systems.)

15.12.2022 - 09:14 [ Wim van Eck / radio-utopie.de ]

Electromagnetic Radiation from Video Display Units: An Eavesdropping Risk?

(1985)

In February, 1985, we carried out an eavesdropping experiment in London, in cooperation with the British Broadcasting Corporation. Part of the results were shown in the programme „Tomorrow‘s World.“ A small van was equipped with a 10 metre high pump mast to which a VHF band III antenna was clamped (10 dB gain). The received signal was fed through an antenna, amplified (18 dB) and displayed on a television screen inside the van.

For obvious reasons we cannot give information on the data picked up during the experiment. The results can be
summarized as follows:

• It is possible to eavesdrop on the video display units or terminals in buildings from a large distance, using a car fitted up for the purpose.

• Although the experiment was carried out in broad daylight and many people watched us, nobody asked what we were doing.

15.12.2022 - 09:00 [ Radio Utopie ]

Spionage und Informationskontrolle: Der technologische Quantensprung in 1943

(20.7.2014)

USA, 1943. Mitten im Zweiten Weltkrieg.

In einem Labor der 1877 vom Schwiegervater Alexander Graham Bells gegründeten Bell Company (heute der Weltkonzern AT&T), die für das 1860 gegründete Signal Corps der US Armee arbeitet, testet ein Wissenschaftler der Bell Company das 1925 von der US Armee in Dienst gestellte verschlüsselnde Text-Kommunikationssystem SIGTOT. Es arbeitet nach dem US Patent #1,310,719 für ein „geheimes Signalsystem“ des Bell Technikers Gilbert S. Vernam aus 1919 und benutzt zur Verschlüsselung ein Bell Gerät namens 131-B2.

An jenem Tage des Jahres 1943 bemerkt nun der für die US Armee arbeitende Wissenschaftler der Bell Company ein technisches Phänomen, welches bis heute fast der gesamten Weltbevölkerung unbekannt ist, obwohl es die Sicherheit, die Privatsphäre, die Gesellschaften, die Staaten, die Sicherheit und das Leben von heute 7 Milliarden Menschen unmittelbar berührt und gefährdet:

jedes Mal wenn er über den verschlüsselnden Text-Kommunikations-Apparat SIGTOT einen Buchstaben eintippt, schlägt in einem entfernten Teil des Labors ein Oszilloskop aus. Und zwar fünf Mal, für jedes Zeichen pro Sekunde („baud“). Als er die angezeigten Spannungsspitzen näher analysiert, stellt er fest, dass er die in den Text-Kommunikations-Apparat der Armee per Hand eingetippten und anschließend verschlüsselten Texte aus der Entfernung unverschlüsselt mitlesen kann.

15.12.2022 - 08:53 [ National Security Agency ]

TEMPEST: A Signal Problem

(1972)

Now, let´s go back to the beginning. During World War II, the backbone systems for Army und Navy secure teletypewriter communications were one-time tapes and the primitive crypto-equipment SIGTOT. For encrypting, the Services used a Bell-telephone mixing device, called 131-B2. When one of these mixers was being tested in a Bell laboratory, a researcher noticed, quite by accident, that each time the machine stepped, a spike appeared on an oscilloscope in a distant part of the lab. After he examined these spikes more carefully, he found that he could read the plain text of the message being enciphered by the machine.

23.11.2022 - 14:42 [ Jerusalem Post ]

‚Israel, Russia to coordinate in air, sea, and electromagnetic arena‘

(October 27, 2015)

In Russia, Eisenkot met with his Russian counterpart, General Valery Vasilevich Gerasimov – the first time chiefs of staff from Russia and Israel held a direct meeting in Moscow. Eisenkot also participated in part of the meeting held between Netanyahu and Russian President Vladimir Putin. Afterward, the two sides agreed to set up a joint working group led by the deputy chiefs of staff from each country.

28.10.2022 - 15:35 [ Schenectady Gazette / Google.com ]

Methane, Ammonia on Mars? Mariner 7 Sees Hint of Life

(8.August 1969)

Pimentel´s evidence was from an infrared spectrometer, designed to detect elements by measuring their radiation.

24.10.2022 - 19:28 [ Jerusalem Post ]

‚Israel, Russia to coordinate in air, sea, and electromagnetic arena‘

(October 27, 2015)

In Russia, Eisenkot met with his Russian counterpart, General Valery Vasilevich Gerasimov – the first time chiefs of staff from Russia and Israel held a direct meeting in Moscow. Eisenkot also participated in part of the meeting held between Netanyahu and Russian President Vladimir Putin. Afterward, the two sides agreed to set up a joint working group led by the deputy chiefs of staff from each country.

19.07.2022 - 19:14 [ Jerusalem Post ]

‚Israel, Russia to coordinate in air, sea, and electromagnetic arena‘

(OCTOBER 27, 2015)

In Russia, Eisenkot met with his Russian counterpart, General Valery Vasilevich Gerasimov – the first time chiefs of staff from Russia and Israel held a direct meeting in Moscow. Eisenkot also participated in part of the meeting held between Netanyahu and Russian President Vladimir Putin. Afterward, the two sides agreed to set up a joint working group led by the deputy chiefs of staff from each country.

17.05.2022 - 11:25 [ National Security Agency ]

TEMPEST: A Signal Problem

(1972)

Now, let´s go back to the beginning. During World War II, the backbone systems for Army und Navy secure teletypewriter communications were one-time tapes and the primitive crypto-equipment SIGTOT. For encrypting, the Services used a Bell-telephone mixing device, called 131-B2. When one of these mixers was being tested in a Bell laboratory, a researcher noticed, quite by accident, that each time the machine stepped, a spike appeared on an oscilloscope in a distant part of the lab. After he examined these spikes more carefully, he found that he could read the plain text of the message being enciphered by the machine.

17.05.2022 - 11:17 [ Radio Utopie ]

Spionage und Informationskontrolle: Der technologische Quantensprung in 1943

(20.7.2014)

USA, 1943. Mitten im Zweiten Weltkrieg.

In einem Labor der 1877 vom Schwiegervater Alexander Graham Bells gegründeten Bell Company (heute der Weltkonzern AT&T), die für das 1860 gegründete Signal Corps der US Armee arbeitet, testet ein Wissenschaftler der Bell Company das 1925 von der US Armee in Dienst gestellte verschlüsselnde Text-Kommunikationssystem SIGTOT. Es arbeitet nach dem US Patent #1,310,719 für ein „geheimes Signalsystem“ des Bell Technikers Gilbert S. Vernam aus 1919 und benutzt zur Verschlüsselung ein Bell Gerät namens 131-B2.

An jenem Tage des Jahres 1943 bemerkt nun der für die US Armee arbeitende Wissenschaftler der Bell Company ein technisches Phänomen, welches bis heute fast der gesamten Weltbevölkerung unbekannt ist, obwohl es die Sicherheit, die Privatsphäre, die Gesellschaften, die Staaten, die Sicherheit und das Leben von heute 7 Milliarden Menschen unmittelbar berührt und gefährdet:

jedes Mal wenn er über den verschlüsselnden Text-Kommunikations-Apparat SIGTOT einen Buchstaben eintippt, schlägt in einem entfernten Teil des Labors ein Oszilloskop aus. Und zwar fünf Mal, für jedes Zeichen pro Sekunde („baud“). Als er die angezeigten Spannungsspitzen näher analysiert, stellt er fest, dass er die in den Text-Kommunikations-Apparat der Armee per Hand eingetippten und anschließend verschlüsselten Texte aus der Entfernung unverschlüsselt mitlesen kann.