A mobile jammer is a piece of electronic device used for disrupting mobile signals in a given area. It produces powerful signals at the frequency of mobile signals and broadcasts those signals to create a mobile free area within a few seconds of starting.
What is a mobile jammer and how it works?
A portable jamming device could be a pocket-size device with a 10-meter range or it could be a large piece with the 100-meter range of working. A jammer comes with multiple antennas – one each for GSM, 3G, and DCS.
• Antenna: It transmits radio signals at a set frequency.
• Voltage-controlled oscillator: It produces the radio signals for transmitting.
• Tuning circuit: It keeps the frequency of the signals under control.
• Noise generator: It produces random sound waves at a specific frequency to disrupt the mobile
signals in a given range.
• RF amplifier: It boosts the frequency of the radio waves to the point where they disrupt the mobile signals.
• Power Supply: It supplies power to the main device.
The signals from the jammer are sent at such a force and within the same frequency that the mobiles become unusable within the range of a jammer. Cell phones are full-duplex devices. It means they use two types of signals – one for receiving and another for making calls. A basic jamming device would disrupt only one of these signals but it would disrupt two-way communication.
Presence of concrete structures and other obstructions could affect the performance of a jammer to a certain extent. Similarly, tower proximity, humidity, and temperature can also affect the functionality of a jammer. One more thing that can affect the device is its built quality and technology. When fully-functional, it can jam mobile connectivity completely.
