All it takes to jam a cell phone is a device broadcasting on the correct frequency
The jamming device suppresses the mobile phone by sending signals at the same frequency and high enough power to make the two signals collide and cancel each other.The mobile phone is deceived into thinking that it has no service because it can only receive one of the frequencies.Some jammers only block one of the frequencies used by the phone, which has the effect of blocking two frequencies.To interfere with your phone, you only need a device that broadcasts at the correct frequency. As you move through your day-to-day life your phone will emit a signal to different cell phone towers.It interferes with the transmission of telephone signals between the receiver and the caller.The jammer will shield GPS, CDMA, GSM, DCS, PHS, 3G and other signals during operation.The function of jammer gps is to deliberately block or interfere with the wireless signal, which is essentially "jamming" the wireless signal.It will generate weak radio waves that interfere with GPS radio It prote...