What are the key points for using wireless signal detectors?
Wireless signal detectors provide two diversity processes, namely retrieval and detection. The search mode allows checking and pinpointing the currently active signal transmitter. The detection mode continuously detects wireless signals, so once a signal is activated, the FM transmitter can be detected.
Before searching, the wireless signal detector should turn off all wireless signal sources (mobile and cordless, mobile Bluetooth, Wi-Fi, microwave heating) within the target range. Use voice to control the call signal transmitter from any sound source. Place the Spectrum Inspector in the center of the house and run the search method. Slowly approach areas where FM transmitters are likely to be present and observe changes in signal levels. Sound and light display are selectable. The closer to the signal source, the higher the number of flashes. A rapid increase in the number of flashes indicates that there is likely a hidden surveillance device.
If it is clear that the search is completed, run the detection mode and place the radio frequency detector at any convenient location. This equipment should be maintained for a long time to prevent false alarms. When a threat signal is detected it will turn into an alarm. The effect of wireless communication signal detection in detection mode depends on whether the threshold level is set appropriately. Taking mobile phones as an example, it depends on the signal strength value.
The analog signal detection mode of the wireless signal detector should define the signal level of mobile and cordless, Bluetooth and other similar devices and adjust the threshold level. The higher the threshold, the lower the incorrect alarm ratio, but the detection interval should also be relatively reduced.
What are the types of cell phone signal jammers?
Nowadays, the mobile phone signal jammers commonly used by people mainly include examination room-specific signal jammers and wall-painting mobile phone jammers.
Special signal jammers for examination rooms. The specific basic principle of this type of facility is that within a certain operating frequency range, mobile phones and communication base stations are connected using electromagnetic waves, and information and sound effects are transmitted with a certain serial port baud rate and deployment method. During the operation process, the jammer transmits the low-end frequency of the wireless channel to the high-end scanner at a certain rate. This scanner rate can cause errors in the packet format signals received by the mobile phone. The mobile phone cannot detect the regular data sent from the base station, so that the mobile phone cannot establish a connection with the base station, thereby blocking the mobile phone signal. For this purpose, the mobile phone mainly displays problems such as searching the network, poor signal, and no service system.
Wall mural mobile phone jammer, wall mural mobile phone jammer takes into account the basic functions and good-looking features of cell phone jammers. It is especially suitable for some medium and large conferences and high-end confidential venues.
Colleges and universities must be completely shielded during exams. High-efficiency shielding maintains normal operation rules. At the same time, using the design of heat dissipation strips, you will not worry about the impact of fan noise.
High-end confidential venues, hidden wall murals are installed, especially suitable for high-end confidential venues. The shielding performance is stable and it is not easy to be shielded for a while and not shielded for a while. The shielding distance is long and the shielding distance can be adjusted.
Cell phone data signal detection and blocking machines make detention centers and other supervision places more personalized. The hidden installation of wall murals prevents criminals and police officers from being too dissatisfied. The interface can write educational slogans to remind criminals to repent and rehabilitate. The amplification line is designed to be easily shielded around the window through the large iron door of the prison, with no dead ends. Taking a standard prison building with a length of 100 meters as an example, only two or three units are needed on one floor to achieve 100% shielding.