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2022年10月31日

Transmits radio signals on the same frequency as GPS devices

GPS trackers receive microwave signals from multiple satellite transmitters orbiting the Earth.This project is mainly intended to prevent the usage of mobile phones in places inside its coverage without interfering with the communication channels outside its range, thus providing a cheap and reliable method for blocking mobile communication in the required restricted areas only.


Once the tracker receives signals from four or more satellites, it determines its position through a series of time calculations and trilateration.The answer is that there is counter-drone technology, which has been in the military for years, but the question is how to legally use counter-drone technology outside of war zones without causing all kinds of confusion.



8 Bands Jammer Device

The receiver relies on these precise and specific satellite signals to determine its position in the world.However, GPS jammers differ in that they transmit radio signals or signal noise at the same frequency as GPS devices to clip or distort GPS satellite signals.In some cases,satellite interference or solar flares can temporarily interrupt the transmission of GPS signals.They have launched a variety of anti-drone guns, anti-drone shotgun shells, attack birds, net guns, lasers, missiles, radio signal drone jammer, GPS signal spoofers, and more.B.


GSM jammer is a device that transmit signal on the same frequency at which the GSM system operates.Those who use GPS satellite signals for navigation in manned aircraft or cars, or those who use wireless frequencies such as Wi-Fi.Many anti-drone systems companies are following news stories about bad drones and flagging their products and/or services.The circuits that use for GSM jammer are Tuning Circuit, Voltage Controlled Oscillator, RF Amplifier and Antenna form the Jammer circuit.



Blocker CDMA GSM 3G 4G

The mobile phones in the area where the jammer is located are disabled.Signal jamming involves using a jammer to send “noise” that disrupts the frequency band on which wireless devices operate.In this case, the GPS device can no longer calculate its position because the satellite signal is blocked by interference.The gain of the project is that we are able to block communication coming into and going out from a GSM phone operating on the 890MHz to 960MHz frequency band.


All the circuit output are constructed and observed using the Electronic workbench.Devices on a wireless network send and receive information using data packets at a specific frequency.The GPS tracking device then transmits this location and speed information to the monitoring site, usually over a cellular network.We've all seen news articles about drones being used for nefarious purposes and wondered if there was counter-drone technology to stop these actions.


The simulation result and practical result were studied and they were found to be approbatory equal.A signal jammer can be a hand-held, portable device that prevents wireless communications within a 15-meter radius.As the drone industry is taking off, some individuals and groups have started using drones for malicious purposes around the globe.These jammers are relatively cheap, disrupt communication on specific frequencies, and are mostly used for personal privacy and security reasons.




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Posted by perfectjammer at 15:31Comments(0)signal noise

2022年10月31日

Do wifi jammers cause signal interference to wired and wireless networks?

As the name suggests, a wifi jammer is a specialized instrument that shields (ie, interferes) wireless signals. According to its working principle, the signal shielded (interfered) by the wireless wifi jammer is a wireless signal, which is an invisible and invisible transmission signal in the air. Wireless signal jammers, also known as wireless frequency jammers, can also indicate their principle characteristics, that is, to shield (interfere) wireless signals of certain specific operating frequencies or frequency bands. The signal transmission of a wired network is through a wired connection, such as a common wired network (network cable), cable TV, wired telephone, etc. The root of signal transmission is the cable. Therefore, when the wireless frequency jammer is working normally, it will not cause signal interference to the wired network.
wireless wifi bluetooth jammer

But there is one situation that needs a special explanation. Since the wireless wifi signal jammer will emit a certain power of interference signal, when the antenna of the wifi frequency jammer is too close to the cable of the wired network, certain interference will be observed. This kind of interference belongs to electromagnetic field interference and is closely related to the distance between the signal source and the target. In fact, simply increasing the distance between the two drastically reduces the strength of the interference. Because, if you're worried about a radio frequency jammer interfering with a wired network, all you need to do is keep the wireless signal jamming antenna some distance away from the wired network's cables.
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Posted by perfectjammer at 12:36Comments(0)wifi jammer