An fm transistor is used here for making a mobile phone jammer.Mobile phones are working in 450 MHz frequency .Here the transmitter generate almost equal to 450 MHz frequency there for 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 .The power supply should not exceed 3Volt
Part List
Component No: Value 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 1MF Coupling
C6 2.2pf Coupling
C7 103pf Decoupling
Q1 BF 494 Amplification
L1 22nH Frequency
Generating
7 comments:
Is this circuit tested? Any recommendations for parts?
what is 100R....is it 100 ohm or somethng else?
ya its been tested. Its 100ohm
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Does it work for all frequency phones like 3g and then higher frequency
@ mammukutty : Sorry this is a small circuit and only works for 2g networks
#Admin
from wher i can get the antenna????
thanks for provide knowledge via diagram of mobile phone jammer in gurgaonis good product.
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