What is a "Jamming Cell Phone Signals"? The Most Authoritative Explanation.
How do cell phone jammers work?
Cell phone jammers work by emitting a Radio Frequency (RF) signal that is stronger than the power from the nearest cell phone base station or cell phone tower. The frequency of the RF signal is similar to the signal employed by cellular phone carriers and renders the phone unstable. The jamming occurs with the downlink signal.What is signal jamming and how does it affect you?
Signal jamming devices (e.g., cell phone, GPS, and radar jammers) can prevent you and others from completing 9-1-1 and other emergency calls. These devices also can interfere with communications networks utilized by police, fire, and emergency medical services, to the detriment of the public safety.Why is my phone jammed?
The frequency of the RF signal is similar to the signal employed by cellular phone carriers and renders the phone unstable. The jamming occurs with the downlink signal. When your phone is being jammed, you will not see any signal bars on your phone.Can cell phones and other signal jamming devices prevent you from calling 911?
But as troubling as these scenarios may be, cell phone and other signal jamming devices are NOT the answer. Signal jamming devices (e.g., cell phone, GPS, and radar jammers) can prevent you and others from completing 9-1-1 and other emergency calls.
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