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How do wifi jammers work?

Howard Christopher August 2022

Technologies such as wifi signal jammer, drone jammers, and cell phone jammers have entered the market in recent years.

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Jammer-Mart August 2022

Technologies such as wifi signal jammer, drone jammers, and cell phone jammers have entered the market in recent years. WiFi Jammer Safety
A jammer is a signal-blocking device that transmits synchronized radio waves on the same frequency as a device such as a cell phone or drone to obscure its signal.

Each wireless technology works on a specific radio frequency spectrum, and they operate within certain noise margins and magnitudes. For example, cellular communications typically operate at signal strengths up to -120dBm, so if someone is able to generate a high-amplitude noise signal on that particular frequency, he/she may interfere with that cellular spectrum. Wifi (-90dBm limit) and Bluetooth work in the 2.4Ghz range, if there is continuous (considering time division multiplexing) noise at that frequency, the device will not be able to communicate.