There are a lot of different types of jammers on the market
Each section handles specific frequencies, including long-wave radio, microwaves, and even visible light. Devices have standard frequencies that they operate on. Knowing which ones they use can help design a jammer for that device.When several devices all operate on the same frequency band, the channel gets crowded. Having too many devices on one channel can cause the connection to slow down and fade. Each device is getting drowned out by the other.A signal jammer can overcrowd that frequency by sending very strong signals, bumping devices off.

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The sale and use of jammers is illegal for individuals and enterprises, but they are still easily attainable online. Generally, a jammer is comprised of a transmitter, which can take different shapes and sizes. When aimed and fixed on a drone, a jammer disrupts the radio and GPS signals guiding it, and depending on the technology used, can deploy this interruption from thousands of feet away.Organizations that are authorized to use jamming technology are usually protecting high-risk areas, such as military bases. In a warzone, military security may want to defeat an unauthorized drone before it enters a protected area, and prevent any interruptions or potential harm to themselves or their property. 

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For these reasons, many countries have made signal jammers illegal in most scenarios. The United States in particular has made it illegal to selling, distribute, and market signal jammers to American citizens. Only under the rarest circumstances can law enforcement even use signal jammers.In other countries, law enforcement and government agencies are widely allowed to use signal jammers. In some countries, it’s even allowed for some civilian organizations and individuals to use signal jammers in specific circumstances as long as safety guidelines are followed.

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