jammer block
New Member
With the rapid development of science and technology, shielding equipment has emerged as the times require. For example, the signal jammer produced by Ningbo Dazhan Electronic Technology Co., Ltd. is installed in school examination rooms mainly to prevent cheating; and it is mainly used to prevent computers, network servers and communication electronic equipment from being used. Shielding cabinets that leak confidential information during operation, etc. Of course, the emergence of shielding equipment is not only produced for these purposes, but is actually more for high-tech needs, such as electromagnetic shielding rooms, etc., which are still widely used. So today we will briefly sort out what devices can block signals.
1. Signal jammer - to prevent cheating in examination rooms, etc.
signal jammer
During the working process, the mobile phone signal jammer scans from the low frequency band to the high frequency band of the forward channel (the channel from the base station to the mobile phone) at a certain speed, causing interference when the mobile phone receives the signal, so that the mobile phone cannot detect the signal emitted from the base station. Normal data, thus unable to establish a connection with the base station, showing no signal and no service status.
For example, when a mobile phone communicates with a base station, a signal jammer is like a troublemaker, deliberately making noise around you. The noise signal is so loud that the mobile phone cannot hear what the base station says, and what the mobile phone says cannot be heard by the base station.
In fact, this does not block the mobile phone signal, but makes the signal emitted by the mobile phone disappear in a large number of noise signals, thus achieving the purpose of interference. At present, the mobile phone signal jammers developed and produced by Dazhan Electronics are all full-band. It can interfere with all 2G/3G/4G/5G frequency bands of the three operators. It can also block all WIFI signals and Bluetooth signals.
Simply put, signal jammers are built to interfere with the operation of communications equipment. The device uses the frequency at which the mobile phone operates, so it cannot affect the use of the mobile phone by receiving signals from the base station. If you want to disable the normal functions of your mobile phone, just install a mobile phone signal jammer, and the mobile phone will stop accepting calls and messages within a certain period of time.
2. Shielding cabinet-preventing the leakage of confidential information
Shielded cabinet
Shielded cabinet is a type of cabinet, also called electromagnetic shielding cabinet. A shielding cabinet is an electromagnetic shielding device that can be used to place computers, which can prevent electromagnetic waves from harming people, effectively suppress the leakage of computer electromagnetic information, and prevent external strong electromagnetic disturbance from affecting the normal operation of the computer. It includes a cabinet bottom, a top cover, and side walls. It also includes a frame, a spring leaf, an upper waveguide window, a lower waveguide window, a door knife, a filter, a shielding glass, a perspective shielding glass door, a back door, a waveguide, and an optical transceiver. Frame composition.
Shielding cabinets are mainly used for:
Prevent the leakage of confidential information during operation of computers, network servers and communication electronic equipment;
Prevent the above equipment from being interfered by external electromagnetic waves during operation and ensure its normal operation.
It is used in industries with high confidentiality requirements such as government agencies, banks, securities, military, scientific research, etc.
1. Signal jammer - to prevent cheating in examination rooms, etc.
signal jammer
During the working process, the mobile phone signal jammer scans from the low frequency band to the high frequency band of the forward channel (the channel from the base station to the mobile phone) at a certain speed, causing interference when the mobile phone receives the signal, so that the mobile phone cannot detect the signal emitted from the base station. Normal data, thus unable to establish a connection with the base station, showing no signal and no service status.
For example, when a mobile phone communicates with a base station, a signal jammer is like a troublemaker, deliberately making noise around you. The noise signal is so loud that the mobile phone cannot hear what the base station says, and what the mobile phone says cannot be heard by the base station.
In fact, this does not block the mobile phone signal, but makes the signal emitted by the mobile phone disappear in a large number of noise signals, thus achieving the purpose of interference. At present, the mobile phone signal jammers developed and produced by Dazhan Electronics are all full-band. It can interfere with all 2G/3G/4G/5G frequency bands of the three operators. It can also block all WIFI signals and Bluetooth signals.
Simply put, signal jammers are built to interfere with the operation of communications equipment. The device uses the frequency at which the mobile phone operates, so it cannot affect the use of the mobile phone by receiving signals from the base station. If you want to disable the normal functions of your mobile phone, just install a mobile phone signal jammer, and the mobile phone will stop accepting calls and messages within a certain period of time.
2. Shielding cabinet-preventing the leakage of confidential information
Shielded cabinet
Shielded cabinet is a type of cabinet, also called electromagnetic shielding cabinet. A shielding cabinet is an electromagnetic shielding device that can be used to place computers, which can prevent electromagnetic waves from harming people, effectively suppress the leakage of computer electromagnetic information, and prevent external strong electromagnetic disturbance from affecting the normal operation of the computer. It includes a cabinet bottom, a top cover, and side walls. It also includes a frame, a spring leaf, an upper waveguide window, a lower waveguide window, a door knife, a filter, a shielding glass, a perspective shielding glass door, a back door, a waveguide, and an optical transceiver. Frame composition.
Shielding cabinets are mainly used for:
Prevent the leakage of confidential information during operation of computers, network servers and communication electronic equipment;
Prevent the above equipment from being interfered by external electromagnetic waves during operation and ensure its normal operation.
It is used in industries with high confidentiality requirements such as government agencies, banks, securities, military, scientific research, etc.