Verizon Cell Phone Blocking Unwanted Calls Can'T Meet The Blocking Effect
In some places near the communication base station or other mobile phone signal strength, if you need to use Verizon Cell Phone Blocking Unwanted Calls to shield the mobile phone signal, the low-power mobile phone shielding devices on the market generally cannot achieve the shielding effect, so you need to use high-power Signal blocker. Which high-power signal shielding instruments are recommended? We know that the reason why mobile phones can surf the Internet, make calls, etc. is because they get in touch with nearby base stations with fixed-frequency signals. The cell phone jammer scans from the low-end frequency of the forward channel to the high-end frequency at a certain speed during the working process. The scanning speed can cause garbled interference in the message signal received by the mobile phone, and the mobile phone cannot detect the normal data sent from the base station, so that the mobile phone cannot establish a connection with the base station. If the mobile phone is closer to the base station, the interference effect of Cell Phone Jammer will be affected. If you want to achieve a qualified shielding effect, you need to increase the power of the mobile phone signal shielding device, that is, use a high-power signal shielding device.
In the examination room, when using a mobile phone to send a message, it is necessary to use a signal to transmit the message. If the mobile phone has no signal, there is no way to receive and send messages. Verizon Cell Phone Blocking Unwanted Calls is a device that can prevent the mobile phone from receiving signals. Turn on signal shielding After the device is turned off, the mobile phone will lose contact with the base station and completely lose the signal within the shielding range. The principle of the mobile phone signal jammer is that the frequency emitted by the jammer itself interferes with the normal frequency of the mobile phone receiving the base station, so that the mobile phone cannot be connected to the base station, so that it cannot normally make calls, send and receive text messages and surf the Internet. In recent years, the phenomenon of cheating with mobile phones has occurred in various national examinations, which has seriously affected the fairness and justice of the examination. To this end, the state stipulates that mobile phone signal jammers should be equipped during major examinations to create a healthy and fair examination environment for candidates.