Jamming any other radio communication is the same as interfering with cell phone communications. Through a cell tower or base station, a cell phone interacts with its service network to function. A city is divided into smaller sections, or cells, by cell towers. The signal is passed from tower to tower when a cell phone user travels down the street. A jamming device interferes with communication between a cell phone and the base station in a cell tower by transmitting on the same radio frequencies as a cell phone. By emitting a signal on the same frequency and with enough strength to cause the two signals to collide and cancel each other out, jamming devices outperform cell phones. Since cell phones are full-duplex devices, they concurrently use two different frequencies for talking and listening. Some jammers only interfere with one of the frequencies that cell phones utilise, which effectively interferes with both frequencies. Because the phone can only receive one of the frequencies, it is deceived into thinking there is no service. Know more about signal jammer at Jammer Master.
Inside of Cell Phone Jammers :
Cell phone jammers are fairly simple electronic devices. The simplest models only include an on/off switch and an on/off light. Switches on more sophisticated systems can be used to initiate jamming at various frequencies. A jammer’s parts include:
Each jamming tool contains an antenna that transmits the signal. Some of them are housed in an electrical cabinet. Stronger devices have external antennas that offer a greater field of view and can be set for certain frequencies.
A jammer’s primary electronic parts are as follows:
A voltage-controlled oscillator produces the radio signal that will disrupt the signal from a cell phone.
Tuning circuit: By applying a specific voltage to the oscillator, this circuit regulates the frequency at which the jammer broadcasts its signal. a source of Noise – Generates random electronic output in a designated frequency range to block the signal from the cell phone network (part of the tuning circuit)
RF augmentation (gain stage) – Increases the radio frequency output’s strength to levels high enough to interfere with a signal. Power Source : Smaller jamming gadgets run on batteries. Some are mobile phone-like in appearance and use cell phone batteries. Stronger gadgets can be hooked into a car’s electrical system or inserted into a regular socket.