Mobile jammer projects -IEEE PROJECTS FOR MOBILE JAMMER

Cell Phone Jammers(mobile jammer for

industries/hospitals-wide Area)

Cell Phone Jammer is an instrument to prevent cellular phone from receiving and

transmitting the mobile signals to the base station. Unfortunately all places such as

church, mosque, library, movie theatres and meeting room because not all cell-

phone users know when to stop talking. There arises the need of a cell phone

jammer.

It's great to be able to call anyone at anytime. Who hasn't seethed through one side

of a conversation about an incredibly personal situation as the talker shares

intimate details with his friend as well as everyone else in the area? While most of

us just grumble and move on, some people are actually going to extremes to

retaliate. Cell phones are basically handheld two-way radios. And like any radio,

the signal can be disrupted, or jammed using a cell phone jammer.

Cell phone jamming devices were originally developed for law enforcement and

the military to interrupt communications by criminals and terrorists. The Cell

Phone Jammers are now a necessity for accomplishing a more cultured society

because there is a growing demand for silence at places like hospital, libraries and

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movie theatres. Nowadays, there is a wide range of cell phone jammers starting

from a pocket sized to as big as to jam an entire sport area.

Working of Cellular and How to jam it

In order to explain how cellular jammers works we need to understand first how

mobile phones works. The cellular phone keeps communicate with cellular base

stations every several minutes by transmitting "alive" signal with ID code. This

notifies cellular network that our cellular phone is ON and in coverage area. Now

imagine that this communication interfere by white noise signal which provide by

the cellular jammer.

The communication between base station and cellular phone cuts-off and the

cellular phone will be totally blocked. Therefore the receiver in cellular phone

"thinks" that cellular phone is not in coverage area. After 20-60 seconds mobile's

phone display will show "NO SERVICE" or "Searching for network". From this

point of time the cellular phone will not be able to receive or dial outgoing call.

The cellular phone will be able to communicate again after switch off the cellular

jammer.


NOTE:

Our jammer module range is 12 by 12 Feet

Jams only AIRTEL, BSNL, AIRCEL

(Vodafone and cdma) not supported because of different frequency

range

Cell phone jammer(hand held kit based on microcontrollers)


Block Diagram:


Jammer Module

Power Amplitue Modulation

Power Supply for Power Amplifier

3.6 V1.8 V

Power Supply +12VDC

Voltage Controlled Oscillator-VCO

Noise Generator

Triangle Wave Generator SINE WAVESAWTOOTHSQUARE

Dual Power Supply +12V -12V

Power Supply

+5V

PIC 16F877 LCD DisplayJammer Freq: 800-1800

MHZ

Education

Mobile jammer projects -IEEE PROJECTS FOR MOBILE JAMMER