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Spotting hidden RF bugs

Posted: 31 Aug 2011     Print Version  Bookmark and Share

Keywords:RF  bug  INHI 

Here's a design idea that showcases a circuit that detects RF "bugs," such as hidden wireless cameras, eavesdropping microphones, and other spying devices that emit RF frequencies in the 100MHz to 3000MHz range. A modification to this circuit not only detects RF bugs, but also locates their hidden positions. This design uses a log detector (MAX2015) that senses RF signals at pin INHI, and produces an output voltage on pin 8 proportional to the power level of the received signal.

View the PDF document for more information.

Originally published by Maxim Integrated Products at as "Circuit Detects and Locates Hidden RF Bugs".

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