cellular phone detector circuit schematic

Posted on Feb 5, 2014

Using this electronic schematic, can be designed a very simple cellular phone detector circuit which can sense the presence of an activated mobile cell phone from a distance of one and-a-half meters. The C3 capacitor must have leads length of 18 mm with 8 mm spacing between leads to obtain the desired frequency. This small disk capacitor acts as

cellular phone detector circuit schematic
Click here to download the full size of the above Circuit.

a small gigahertz loop antenna to collect the RF signals.

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