What was going on at the American Embassy in Cuba where "acoustic attack" was reported?

byMatthijs

It is reported that US and Canadian diplomats at Bahanna, the capital of Cuba, have received "acoustic attack". Some 21 US targeted diplomats have been attacked several times since 2016 and the damage such as hearing loss and brain damage has been reported. It is said that the cause is "under investigation", while on the other hand the foreign minister of Cuba suffered an acoustic attackNo evidence foundBut this is due to the modulation microwaveMicrowave auditory effectThere is a possibility of attack usingHackadayIt explains.

Cuban Embassy Attacks and The Microwave Auditory Effect | Hackaday
https://hackaday.com/2017/09/25/cuban-embassy-attacks-and-the-microwave-auditory-effect/


The victim was a diplomat who stayed at the embassy or hotel, and the sound that struck the diplomats included a "clicking" like when the second hand of the watch was engraved, like when grinding coffee beans Various things such as sounds like gorigori, humming, bumpy sound etc. are reported. A diplomat sounded as it was sleeping at night and the sound ceased when it came out of the bed, but when it returned to bed, the sound began to resonate againI am reporting.

Although the cause is unknown, the media is discussing various possibilities such as acoustic weapons, insects, electronic equipment, poison etc. Julian Assanji also said that "This is a delusion in the isolated diplomatic group It seems to be a combination of disease and pathogens. "

The diversity of symptoms suggests that this is a pathogen combined with paranoia in an isolated diplomatic corps.https://t.co/0e6rop6Vjr

- Julian Assange (@ JulianAssange)September 14, 2017

As being causing an attack, what is considered to be the most likely isLong Range Acoustic Device(LRAD) called an acoustic equipment. LRAD has directionality and is deployed in the US military located in Iraq as "to fire an explosive beam to the target in the effective range, so that the opponent is not motivated to attack", and in Japan, to Sea Shepherd We have successfully stopped approaching by using it. Tear gas used for riots etc. can also be used to suppress riots because there is a possibility of causing a person with respiratory illness to become heavy or dead.

However, LRAD is a hexagonal device about 80 cm in diameter, weighing around 30 kg. Since it is not a lightweight and compact device, it is difficult to use it inconspicuously. Also, LRAD is like a huge loudspeaker and can not pass through the wall because it carries air. And since it is radiation with a width of 30 to 60 degrees rather than radiating at a pinpoint like a laser, even those who operate LRAD need to protect.

by SPC Brian Chaney

For the above reasons, LRAD is an editor, an engineer, a hacker of Hackaday, considering it is unlikelyAdam FabioThinks thatMicrowave auditory effectThe possibility that you are using. The microwave auditory effect is a phenomenon studied by Professor Alan H. Frey, a neuroscientist who generates sound directly in the human head without receiving a receiver by aiming at the target. In a study in the Cold War era, people who could hear pulsed microwave radiation complained of headache / numbness as a side effect. Also, some people became deaf or hard of hearing, but it seems that they could recognize the illuminated sound even if the ears could not be heard. In addition, changing the setting of the transmitter can adjust the influence on the target, it is said that there were some subjects who complained of "a feeling that the head was outraged" or "feel like being struck with a needle" I will.

For microwave auditory effects RF signals are transmitted towards the target. Why RF signals are converted into sound in the brain is not strictly clear, but RF signals thermally expand the cells in the ear, a small shock wave is born and it is "sound" in the brain It is thought that it will be recognized as. According to Fray, Professor Frey said that it is possible to prevent the sound by the RF signal by using a mesh screen with a wire mesh in a grid pattern.

In the early 2000s, the US Navy used non-killing weapons using the microwave hearing effect "MEDUSA"Establish a research institute. Since MEDUSA has low killing ability and it is possible to target multiple targets at the same time, it was developed as an effect to suppress the riot. However, as the research progresses, safety is questioned as possibly damaging the brain cells when irradiating the RF signal outputted with high power to the target, and the project was eventually discontinued.

Fabio sees that there is a good possibility that weapons such as MEDUSA were used in Cuban diplomat attacks even if we look at the research on microwave auditory effects as described above. The attack by microwave auditory effect does not require the attacker to be in the same room or building as the target, and if it outputs with high power it is also possible to give the other party dizziness, nausea, brain damage etc. Although the cause of the attack in Cuba is under investigation at the time of article creation, Fabio says that it is necessary to prepare an aluminum foil hat until the cause is clear.

byB Rosen