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How to identify wifi blocker?

Barnard December 2019

A mobile phone is a tool that I must communicate with every day, but there are often no signals or sudden service interruptions. Can you identify if someone is using a WiFi blocker nearby?

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Jammer-Mart December 2019
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As you have guessed, the most common symptom of signal interference in mobile phones is service interruption. Some applications claim to be able to identify sources of signal interference, but these applications are largely unproven and require a functioning signal to function. Without the latest technology at the military level, it would be almost impossible for the average consumer to identify a wifi jammer.