Short range gps scrambler
Because the car GPS tracker does not need real-time positioning, as long as it is sent intermittently, the stability of the SMS is higher and the coverage is wider.
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Let's learn about the simple installation of shields commonly used in prisons
At present, the simple installation of shielding devices commonly used in domestic prisons? Unified opening, inconvenient to close.
Let's learn about the simple installation of shields commonly used in prisons Read More »
The material is electrically conductive and shields against electromagnetic radiation
Conductive sponge, a special electronic material, is mainly produced by wrapping a layer of conductive cloth on the surface of cotton and then processing it. The conductive sponge made by this method not only has excellent conductivity, but also can shield electromagnetic waves.
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Is it only necessary to block the 4G signal when shielding the phone?
The functions of the mobile phones that people use today are already very rich. But did you know that different functions are implemented by different signal modules? Yes, maybe some people already know that. Among them, the communication signal and the GPS positioning signal of
Is it only necessary to block the 4G signal when shielding the phone? Read More »
Does the mobile phone shielding system have the same effect when used indoors and outdoors?
To compare the effect of indoor and outdoor use, the first thing is to compare the same type of
Conference room signal shielding system
Usually, in order to maintain the seriousness of the meeting and the confidentiality of the information, during the meeting, the mobile phone is required to be muted or turned off. However, there are many cases where you forget to adjust the volume or turn off your mobile phone.
Why is the shielding range of the signal jammer not fixed?
The signal jammer scans the low-end frequency to the high-end frequency of the channel at the same speed during the operation. This scanning speed can cause garbled interference in the received message signal of the mobile phone, so that the mobile phone cannot detect the normal
Why is the shielding range of the signal jammer not fixed? Read More »
What method can be used to break through the shielding of the signal by the mobile phone signal blocker?
There are two key points in this problem, one is the frequency band used by the mobile phone, and the other is the mobile phone itself. Generally speaking, the mobile phones we use are normal devices on the market, and their power is within the specified range and meets health st