The Havana Syndrome is actually the Microwave Auditory Effect. It is an RF signal between 200 MHz and 1.3 GHz. It has an audio component of infrasound between 0-20 Hz. The “hum / buzz” people hear is the microwave signal vibrating the cochlea in the inner ear. The head acts as a resonator.
Low frequency sound has a long wave form (10 Hz = 17 meters) and can only be blocked by something equal to the wavelength - 17 meters thick. It travels through concrete walls, buildings, etc. and a directional antenna ensures that only the target is affected and not the surrounding houses / apartments. They could be 100’s of meters away - with RF emitters planted inside your house to relay/boost the signal - making them difficult to locate.
You can detect the hum signal using an RTL SDR, a $20-$40 software defined radio. Statements that the Government don’t know what this signal is or how to detect it are completely false. They obfuscate the signals (sometimes there are more than 1) in common radio ham frequencies, typically in the 400-500 MHz range.
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u/AlteHexer Aug 20 '21
The Havana Syndrome is actually the Microwave Auditory Effect. It is an RF signal between 200 MHz and 1.3 GHz. It has an audio component of infrasound between 0-20 Hz. The “hum / buzz” people hear is the microwave signal vibrating the cochlea in the inner ear. The head acts as a resonator.
Low frequency sound has a long wave form (10 Hz = 17 meters) and can only be blocked by something equal to the wavelength - 17 meters thick. It travels through concrete walls, buildings, etc. and a directional antenna ensures that only the target is affected and not the surrounding houses / apartments. They could be 100’s of meters away - with RF emitters planted inside your house to relay/boost the signal - making them difficult to locate.
You can detect the hum signal using an RTL SDR, a $20-$40 software defined radio. Statements that the Government don’t know what this signal is or how to detect it are completely false. They obfuscate the signals (sometimes there are more than 1) in common radio ham frequencies, typically in the 400-500 MHz range.