Impulsive Emanations

What Does Impulsive Emanations Mean?

Impulsive emanations are signals emitted from an information processing device that are being compromised or can be intercepted. This is a type of compromised emanation (CE) and is considered a part of Telecommunications Electronics Material Protected from Emanating Spurious Transmissions (TEMPEST). Impulsive emanations are found in most equipment that processes digital data.


Techopedia Explains Impulsive Emanations

Impulsive emanations are generally formed with electrical equipment that is being tested. It demonstrates that whatever an individual is doing on a computer can be seen on another computer as the emanated signals are broadcast into the air and can be easily intercepted. Impulsive emanations are caused when the equipment under test (EUT) processes digital signals very quickly.


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Margaret Rouse
Technology Expert

Margaret is an award-winning technical writer and teacher known for her ability to explain complex technical subjects to a non-technical business audience. Over the past twenty years, her IT definitions have been published by Que in an encyclopedia of technology terms and cited in articles by the New York Times, Time Magazine, USA Today, ZDNet, PC Magazine, and Discovery Magazine. She joined Techopedia in 2011. Margaret's idea of a fun day is helping IT and business professionals learn to speak each other’s highly specialized languages.