Tracing Blocked Calls On A Cell Phone
Although a mobile phone is a wireless communication device that is used wherever it goes, there are also invisible wires dragging it, that is, the mobile phone base station. Whether making a phone call or answering a phone call, the first step is to establish contact with a nearby cell phone base station. If you hold a mobile phone in your left hand and right hand, and use the mobile phone in your left hand to dial the mobile phone in your right hand, the electromagnetic wave of the mobile phone is not as simple as passing directly from the left hand to the right hand, but will travel a long way from the left hand phone to hundreds of meters away. Mobile phone base station, and then take a big circle and send it back to the right-hand mobile phone (except for Bluetooth function). Normally, the cell phone of the base station is chatting in full swing. The radio wave signals sent by the two parties come and go, but when Tracing Blocked Calls On A Cell Phone is turned on, it will "knock the gongs and drums" around the phone, sending out "noise" that is many times more powerful than the received base station signal. "With radio wave signals, the mobile phone can’t hear what the base station is talking about, and cannot receive the signal from the base station normally. If the connection between the two is cut off, the mobile phone will become an island, and it will be paralyzed whether it makes calls, texts or other various functions. state. cell phone jammer
The entire frequency band of electromagnetic waves ranges from the smallest a few Hz to the largest hundreds of GHz, and each segment may be used as a communication signal, but except for a few very professional equipment, ordinary Tracing Blocked Calls On A Cell Phone are " "The voice is not loud enough", "Five sounds are not complete", a mobile phone signal jammer can only shield a small part of the frequency bands, and communication tools can use unshielded frequency bands for communication. Of course, all the 2G, 3G, and 4G mobile phone services of several domestic communication companies are concentrated in a few small frequency bands. The mobile phone signal jammers in the examination room can still focus on these frequency bands. When the mobile phone jammer is working, it will send out chaotic electromagnetic waves from low frequency to high frequency in various frequency bands, which will interfere with the connection between the mobile phone and the base station. In fact, it is basically hopeless that mobile phone jammers will make mobile phones cheat, but cheaters can also use their own communication tools. Most of the cheating communication tools sold are of this type). The frequency band used by these illegal communication tools can be selected outside the range of the mobile phone jammer's ability, and often violates the frequency band dedicated to walkie-talkies. For example, some test-takers use built-in headphones to receive radio-transmitted test answers. Sometimes, this kind of earphone is so small that it needs a magnet to suck it out. If it doesn't, it needs the help of a doctor to take it out. Or, electronic devices such as the receiving module are hidden in the temples of the glasses.