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The microwave auditory effect, also known as the microwave hearing effect or the Frey effect, consists of the human perception of sounds induced by pulsed or modulated radio frequencies. The perceived sounds are generated directly inside the human head without the need of any receiving electronic device. The effect was first reported by persons ...
[1] [2] The delusion often concerns government agents or crime rings and alleges that the "perpetrators" use electromagnetic radiation (such as the microwave auditory effect), radar, and surveillance techniques to carry out their goals. [1] [2] Some TIs claim to be victims of gang stalking, and many have created or joined support and advocacy ...
Microwave transmission. The atmospheric attenuation of microwaves in dry air with a precipitable water vapor level of 0.001 mm. The downward spikes in the graph corresponds to frequencies at which microwaves are absorbed more strongly, such as by oxygen molecules. Microwave transmission is the transmission of information by electromagnetic ...
MEDUSA (Mob Excess Deterrent Using Silent Audio) is a directed-energy non-lethal weapon designed by WaveBand Corporation in 2003-2004 for temporary personnel incapacitation. [1] The weapon is based on the microwave auditory effect resulting in a strong sound sensation in the human head when it is subject to certain kinds of pulsed/modulated ...
In 1962, Allan H. Frey discovered that the microwave auditory effect (i.e., the sounds induced by the reception of radio-frequency electromagnetic signals, heard as clicks and buzzes) can be blocked by a patch of wire mesh (rather than foil) placed above the temporal lobe. [10] [11]
This is an accepted version of this page This is the latest accepted revision, reviewed on 13 September 2024. Claimed sensitivity to electromagnetic fields This article is about a pseudomedical diagnosis. For the recognized effects of electromagnetic radiation on human health, see Electromagnetic radiation and health. Electromagnetic hypersensitivity Idiopathic environmental intolerance ...
Sonic weapon. A long-range acoustic device (LRAD) in use on the USS Blue Ridge. Sonic and ultrasonic weapons (USW) are weapons of various types that use sound to injure or incapacitate an opponent. Some sonic weapons make a focused beam of sound or of ultrasound; others produce an area field of sound. As of 2023 military and police forces make ...
These figures are from James Lin's recently released "Auditory Effects of Microwave Radiation": "The auditory effect RF energy thresholds were observed at 16 +/- 4 millijoules per pulse. The auditory threshold of RF pulse widths greater than 200 microseconds occurred at an average peak power level as low as 20W for surface coils."