IMSI CATCHER

Description of product

An IMSI (International Mobile Subscriber Identity) sensor is a sophisticated surveillance device used to track and monitor mobile phones. It works by imitating a legitimate relay antenna, encouraging mobile devices nearby to connect to it rather than the operator's. This allows IMSI Catcher to intercept communications, collect device information and, in some cases, manipulate data.
It is important to note that IMSI sensors can be used in legitimate cases. Governments and other law enforcement agencies may, with legal authorization, use them to monitor criminals, for example.

Based on a deep technical accumulation in the field of mobile communication, our company overcomes many difficulties and successfully develops a variety of wireless investigation products, which fully meet the applicable wireless investigation technology needs:

All-in-one radiogoniometry and active positioning system for 2G/3G/4G/5G vehicles;

Small integrated portable positioning system 2G/3G/4G/5G;

The above products are highly integrated, diversified, easy to use, with good performance and the only ones to support all 2G/3G/2G/3G/4G/5G bands in China, thus avoiding problems of upgrading the subsequent increase in frequency bands due to the problem of incomplete frequency bands of similar products.

Functionality

The main functions of an IMSI Catcher include:

1. Interception of communications: It can intercept phone calls, text messages, and Internet traffic through it.
2. Device identification: by capturing IMSI numbers, which are unique identifiers for mobile subscribers, it can track and identify specific mobile devices.
3. Location Tracking: IMSI sensors can estimate the location of a device by triangulating the force of its signal from several positions.

Components

An IMSI Catcher typically consists of several key components:

1. Transceiver: used to communicate with mobile devices, imitating a cell tower.
2. Software: Allows interception, decoding and analysis of intercepted communications.
3. Database: stores IMSI numbers and associated subscriber information.
4. Antennas: Transmitte and receive signals efficiently, allowing communication with multiple mobile devices simultaneously.

Characteristics

• Portability: Some models are compact and portable, facilitating mobile deployment.
• Scope: Works within a radius of several hundred meters to several kilometers, depending on the model and the environment.
• Semi-automatic operation: capable of automated communications interception and analysis.
• Secret operation: often used discreetly by law enforcement and intelligence agencies for surveillance purposes.

• Supports all 2G bands (900 and 1800), 3G (2100), 4G-LTE, 5G NR (SA+NSA).

  4G : b1/b3/b5/b8/b34/b38/b39/b40/b41 ;

  5G: n1/n3/n5/n8/n28/n41/n77 and n78/n79;

  ◆ System hardware and software are free to support the 698 MHz-4960 MHz band within the 4 main operators 4G+5G wireless network All  adaptation and setting; 2G/3G/4G/5G ( B3/B8/B34/B38/B39/B40/B41/n28/n41/n79 ), 14 frequency bands and 21 cells operate simultaneously;     

  ◆ Supports the same operator and multi-target positioning of 4 mixed network operators at the same time, the target switching response in milliseconds, the single soldier can realize an automatic link ratio value;

  ◆ Supports Direct precise positioning direction search in 2G/3G/4G/5G mode;

  ◆ Based on a 2G/3G/4G/5G base station communication system with a high sensitivity to the rising link and a capture rate ≥ 98%;

  ◆ Support for direct location and radiogoniometry in the VoLTE and VoNR connection state;

  ◆ Supports the millisecond modification of one or more PCI cells without stopping the amplifier power;

  ◆ Support for the distance measurement function, based on an intelligent algorithm analysis, measuring the distance between the target and the positioning car, accuracy ≥ 90%;

  ◆ Three operating modes: mixed mode 2G/3G/4G/5G;

  ◆ Supports 14 BANDES (2G/3G/4G/5G: TDD+FDD, Mobile Link and Telecom can be activated at the same time);

  ◆ Supports the simultaneousity of 21 cells;

  ◆ Adjustable power from 40 W to 50 W per support;

  ◆ Distance from 500 m to 2000 m (non-arbitrary environment);

  ◆ Supports automatic scanning of the 2G/3G/4G/5G public network, automatic or manual configuration of frequency points;

  ◆Supports GPS synchronization, synchronization of  the interface Air and Beidou synchronization; 

  ◆ The results of the radiogoniometry are displayed in the form of numbers and graphs, with voice and mobile phone commands;

  ◆ Integrated control application 2G/3G/4G/5G, supports the use of a smartphone or PAD Android 12.0 or higher;

Applications

IMSI Catchers are used in a variety of scenarios, including:

• Enforcement: Used to track suspects, collect evidence and monitor criminal activities.
• National security: Used to detect and address threats to national security by monitoring communications.
• Business space: in some cases, used to obtain a competitive advantage by intercepting communications from rival companies.
• Confidentiality concerns: used by researchers and activists to identify vulnerabilities of mobile networks and advocate for improved security measures.

Operation

The use of an IMSI Catcher usually involves the following steps:

1. Deployment: Strategic positioning of the device within reach of target mobile phones.
2. Activation: IMSI Catcher launch to simulate a legitimate cell tower and attract devices nearby to connect.
3. Interception: Signal capture and decoding, including IMSI numbers and communication data.
4. Analysis: Analysis of intercepted data to extract relevant information such as identities and locations.
5. Discussion: ensure that operations remain secret and undetected by mobile network operators and unauthorized parties.