CCTV
CCTV is a TV system used for video surveillance. Here the signals aren’t openly transmitted to the public but to a specific point
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CCTV is a TV system used for video surveillance. Here the signals aren’t openly transmitted to the public but to a specific point
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DVR (Digital Video Recorder) and NVR (Network Video Recorder) are recording devices attached to security cameras
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A Mobile Jammer as a security device blocks reception of radio signals by transmitting the signals at the frequency
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