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  2. Mobile phone jammer - Wikipedia

    en.wikipedia.org/wiki/Mobile_phone_jammer

    Example of a mobile phone jammer, produced by Jammerspro. A mobile phone jammer or blocker is a device which deliberately transmits signals on the same radio frequencies as mobile phones, disrupting the communication between the phone and the cell-phone base station, effectively disabling mobile phones within the range of the jammer, preventing them from receiving signals and from transmitting ...

  3. Radio jamming - Wikipedia

    en.wikipedia.org/wiki/Radio_jamming

    Radio jamming is the deliberate blocking of or interference with wireless communications. [1] [2] In some cases, jammers work by the transmission of radio signals that disrupt telecommunications by decreasing the signal-to-noise ratio.

  4. Scrambler - Wikipedia

    en.wikipedia.org/wiki/Scrambler

    A multiplicative scrambler used in V.34 recommendation A multiplicative descrambler used in V.34 recommendation. Multiplicative scramblers (also known as feed-through) are called so because they perform a multiplication of the input signal by the scrambler's transfer function in Z-space. They are discrete linear time-invariant systems. A ...

  5. Outlawed anti-drone radio jammers are being marketed on ... - AOL

    www.aol.com/news/anti-drone-companies-market...

    One China-based seller posted a video on Google-owned YouTube demonstrating how its product would block mobile phone signals. ... At the opposite end of the market for radio signal jammers are ...

  6. Vanderburgh County sheriff testifies in favor of legislation ...

    www.aol.com/vanderburgh-county-sheriff-testifies...

    This article originally appeared on Evansville Courier & Press: Vanderburgh County sheriff testifies in favor of 'signal jammers' law. Show comments. Advertisement. Advertisement.

  7. Stingray phone tracker - Wikipedia

    en.wikipedia.org/wiki/Stingray_phone_tracker

    Then, the vehicle moves to another location and sends out signals until it connects with the phone. When the signal strength is determined from enough locations, the computer system centralizes the phone and is able to find it. Cell phones are programmed to constantly search for the strongest signal emitted from cell phone towers in the area.

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