Portable Cell Phone Signal Jammer from YIFALIU's blog

Overview of the principle of mobile phone signal jammer:

1. Introduction to the principles of mobile communication: The working principle of mobile phones is as follows: within a certain frequency range, mobile phones and base stations are connected through radio waves, and data and sound transmission are completed with a certain baud rate and modulation method.

2. Introduction to the principle of cell phone signal jammer Based on the above communication principle, the signal jammer scans from the low-end frequency of the forward channel to the high-end at a certain speed during the working process. This scanning speed can cause garbled interference in the message signals received by the mobile phone. The mobile phone cannot detect normal data sent from the base station, making it impossible for the mobile phone to establish a connection with the base station. Mobile phones show symptoms such as searching the network, no signal, and no service system.

3. Basic functions: 1. Effectively shields CDMA, GSM, PHS and other mobile phones. 2. Only shields mobile phone signals and does not affect the normal operation of other electronic devices. 3. Slow start design, it can work stably for a long time when the power is turned on.

How to use mobile phone signal jammer

1. Select the area where the mobile phone signal needs to be cut off, and place the cutter on the table or wall in this area.

2. After the installation is completed, turn on the power of the disconnector and turn on the power switch.

3. After the equipment is connected, press the power switch disconnector to start working. At this time, all powered mobile phones on site are in the search network state and lose the base station signal. Neither the calling party nor the called party can establish a call connection.

Overview of the principles of mobile phone signal jammers

2. Introduction to the principles of mobile communication:

The working principle of mobile phones is as follows: within a certain frequency range, mobile phones and base stations are connected through radio waves, and data and sound transmission are completed with a certain baud rate and modulation method.

3. Introduction to the principle of mobile phone signal jammer

Based on the above communication principle, the jammer scans from the low-end frequency of the forward channel to the high-end frequency at a certain speed during the working process. This scanning speed can cause garbled interference in the message signals received by the mobile phone. The mobile phone cannot detect normal data sent from the base station, making it impossible for the mobile phone to establish a connection with the base station. Mobile phones show symptoms such as searching the network, no signal, and no service system.

Fifth generation 8-channel 3G mobile phone signal jammer

In response to the continuous development of communication standards, the third generation 3G mobile phone signal jammer has been carefully developed based on the actual situation of foreign mobile communications. The difference between this jammer and ordinary mobile phone signal jammers is that it can not only shield ordinary mobile phone signals, but also must completely cover the three frequency bands of three domestic mobile communication operators. The 3G frequency bands used by China's three domestic mobile communication operators, China Mobile, China Unicom and China Telecom, are as follows: China Mobile 3G frequency band (2010-2025MHz), China Telecom 3G frequency band (2110-2125MHz), China Unicom 3G frequency band (2130-2130-2125MHz). 2145MHz).

5 antennas, 5 channel transmissionHow to use mobile phone signal jammer

1. Select the area where the mobile phone signal needs to be cut off, and place the cutter on the table or wall in this area.

2. After the installation is completed, turn on the power of the disconnector and turn on the power switch.

3. After the equipment is connected, press the power switch disconnector to start working. At this time, all powered mobile phones on site are in the search network state and lose the base station signal. Neither the calling party nor the called party can establish a call connection.

The portable mobile phone signal jammer adopts imported IC and is independently developed, especially for small venues at home and abroad that require special security and confidentiality, such as confidential offices, negotiation rooms, mobile vehicles, and mobile political and business circles.

Portable cell phone signal jammer

It is a high-tech product carefully developed based on the actual situation of mobile communications at home and abroad for VIPs to guard the scene. It can block GSM/CDMA/DCS/PHS/ within a radius of 0.5-15 meters (usually about 5-80 square meters). PCS/3G mobile phone signals (enhancement can block GPS signals), making it impossible for mobile phones in the area to make and receive calls, and will not interfere with the work of other electronic equipment in the environment. When the phone is away from the shielding range, it can resume normal use.

The machine is easy to carry and concealed, small in size, light in weight, only weighing 150 grams; easy to operate, low power consumption, only 0.5W/h, and can be used for up to 2-3 hours when turned on; easy to charge, most Nokia chargers It can be used universally; it is a truly green and environmentally friendly handheld jammer.

basic skills:

1. Slow start function

After the shield is powered on, the working power rises from zero to stable within 4 seconds.

2. Shielding function

After activation is completed, mobile phones within the range will be blocked within 35 seconds.

Basic performance:

Transmission frequency range: 860-960MHZ 1.800-1.990GHZ

Transmitting power: 1W±200mA

Ambient temperature: -20—+55℃

Relative humidity: 30-95%

Functional frequency bands: CDMA800, GSM900, DCS1800, PCS1900, PHS.

Control range: about 40 meters.

How to use mobile phone signal jammer

1. Select the area where the mobile phone signal needs to be cut off, and place the cutter on the table or wall in this area.

2. After the installation is completed, turn on the power of the disconnector and turn on the power switch.

3. After the equipment is connected, press the power switch disconnector to start working. At this time, all powered mobile phones on site are in the search network state and lose the base station signal. Neither the calling party nor the called party can establish a call connection.