The working principle of mobile signal detector is based on radio spectrum analysis technology. It uses radio frequency probes, or antennas, to detect, locate and identify the presence of mobile devices by scanning the surrounding radio frequencies.
Mobile devices emit wireless signals when in use, such as GSM, CDMA, 3G, 4G, 5G and Wi-Fi signals. The mobile signal detector monitors the surrounding signal spectrum and analyzes the detected signal characteristics to determine the presence or absence of a mobile device.
When the mobile signal detector scans the signal, it analyzes and recognizes the signal based on its frequency, strength and other characteristics. These features can help determine whether the signal is coming from a cell phone device or another radio device.
The mobile signal detector can also determine the location of the phone device through positioning technology. It can use signal strength differences or time delays between multiple receivers to determine the direction and distance of the phone device relative to the detector.
In general, mobile signal detectors utilize radio spectrum analysis technology to detect, identify and locate mobile phone devices. It can help security personnel and law enforcement agencies monitor and control wireless communication activities to maintain security and protect privacy.