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17 Feb
Cell Phone Detector:
Last Date: 17-02-2020

This is a simple circuit which helps to detect the presence of an activated cell phone by detecting the signals in the frequency range of 0.9 to 3GHz. It helps in mobile phones tracking which are used for spying.

Cell Phone Detector Circuit Design Detector Circuit Design The detector circuit consists of an inductor, diode, a capacitor and a resistor. Here an inductor value of 10uH is chosen. A Schottky diode BAT54 is chosen as the detector diode, which can rectify low frequency AC signal. The filter capacitor chosen in a 100nF ceramic capacitor, used to filter out AC ripples. A load resistor of 100 Ohms is used. Amplifier Circuit Design Here a simple BJT BC547 is used in common emitter mode. Since the

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Circuit Knowledge
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Master level
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About the Recruiter

Fahad Shah
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