Friday, November 14, 2014
MOBILE PHONE JAMMER CIRCUIT
Circuit showing a mobile phone jammer. A FM transistor is used for making this circuit. Mobile phones are working in 450 MHz frequency. Here the transmitter generate almost equal to 450 MHz frequency, therefore the mobile phone does not identify the original signal. But the signal range is very week, so this circuit working in only 100 m range. This circuit working in only 450 Mhz . Do not give more than 3 V.
For any jammer circuit, remember that there are three main important circuits. When they are combined together, the output of that circuit will work as a jammer. The three circuits are
- RF amplifier.
- Voltage controlled oscillator.
- Tuning circuit.
Circuit Diagram
Parts List
ComponentsValue Usage
R1 100R Emitter loading
R2 39k Base Biasing
C1 15 pf Frequency Generating
C2 4.7pf Feedback
C3 4.7pf Feedback
C4 102pf Noise Reduce
C5 1uF Coupling
C6 2.2pf Coupling
C7 103pf Decoupling
Q1 BF 494 Amplification
L1 22nH Frequency Generating
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