What does the Active Denial System do?

The Active Denial System will support a full spectrum of operations ranging from non-lethal methods of crowd control, crowd dispersal, convoy and patrol protection, checkpoint security, perimeter security, area denial, and port protection, as well as other defensive and offensive operations from both fixed-site or …

Who makes the Active Denial System?

A U.S. Marines-produced Active Denial Technology video can be viewed here. From 2010 to 2015, a significantly more compact (less than two tons), shorter-range, solid-state technology-based ADS was built in partnership with the U.S. Army, and is also available for testing and evaluation.

What frequency is active denial system?

95 gigahertz
Active Denial Technology uses radio frequency millimeter waves at a frequency of 95 gigahertz. Traveling at the speed of light, the millimeter-wave directed energy engages the subject, penetrating the skin to a depth of only about 1/64th of an inch, or the equivalent of three sheets of paper.

What does LRAD sound like?

The principle behind using an LRAD as crowd control, rather than for long-distance communication, is similar to the idea behind a whistle or a siren: they all emit tones in the most sensitive range of frequencies for most humans. At a distance, an LRAD deterrent tone may sound like any other alarm.

How do I protect myself from infrasound?

A door, a wall or ear plugs do not offer much protection against these sound waves. The sound waves penetrate through at almost full strength and only a certain sound-absorbing surface offers any protection against these sound waves. Special sound-absorbing ear defenders can protect one’s hearing.

What is a covert sonic weapon?

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 2021 military and police forces make some limited use of sonic weapons.

What is a microwave gun?

Directed energy microwave weapons convert energy from a power source – a wall plug in a lab or the engine on a military vehicle – into radiated electromagnetic energy and focus it on a target. The directed high-power microwaves damage equipment, particularly electronics, without killing nearby people.

Can you block an LRAD?

LRADs are designed to produce VERY loud sound, and loud sound can cause significant damage to our auditory (hearing) and vestibular (balance) systems. It is not possible to fully protect yourself​ from potential hearing damage from an LRAD! (The only way to protect civilians from LRADs is to ​not use​ LRADs.)

Is LRAD painful?

The threshold of loudness that causes pain in healthy adults is between 120 and 140 dB, which means anyone within the first 25 feet of the LRAD could experience pain or ear damage. Unlike with other police weapons, the LRAD’s mechanism of injury, and the potential injuries themselves, are invisible.

What does infrasound sound like?

Abstract. Definitions of infrasound and low-frequency noise are discussed and the fuzzy boundary between them described. Infrasound, in its popular definition as sound below a frequency of 20 Hz, is clearly audible, the hearing threshold having been measured down to 1.5 Hz.

What are the symptoms of direct energy weapons?

Over the past five years, at least 130 U.S. personnel have reported similar symptoms while working in places like China, Russia, and Washington, D.C. The cases vary in severity, but almost all involve sudden headaches and nausea. Some victims may have brain injuries.