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Discovery Telecom
Advanced Telecom Systems.
SIGINT and defense equipment
Tel./Fax: +358 9 31587490
E-mail: sales@discoverytelecom.fi

Advanced 3G IMSI/IMEI/TMSI Catcher

3G IMSI Catcher
3G IMSI Catcher

Main characteristics		  
Vendor Intercept
Category IMSI Catchers
Standart 3G (UMTS)/900/1900/2100
Frequency 1920-1980, 2110-2170
System output up to 100W (adjustable)
Power source 115/230V AC or 12V DC
Active range (m) 1000
Features IMEI, IMSI, TMSI
OS Windows 10, 11
Battery Optional
Antenna Directional or omnipole
Management API, IP
Delivery set Catcher, Laptop, antenna, case, S\W
Dimensions, HWD 40 X 25 X 10 cm
Weight 3 kg
Shipment Worldwide

The main functions and characteristics


DT 3G (UMTS) IMSI/IMEI/TMSI Catcher 


DT 3G (UMTS) IMSI/IMEI catcher is an advanced IMSI/IMEI catcher system that is designed to detect presence of 3G (UMTS) handsets in the place of interest. As indicated on the tab Operating principle, the entire system is based on a laptop and a smart compact BTS. 

3G (UMTS) IMSI/IMEI catcher is an active system and as such, it forces 3G (UMTS) phones in its vicinity to register to it. 

System has 3 basic operation modes: 

1. Random (all handsets); 
2. IMSI or/and IMEI (only targets). 
3. Force target’s phones to migrate to GSM mode

Smallest & Smartest 3G IMSI/IMEI/TMSI Catcher

  1. Automatically scans and detects parameters of all 3G networks
  2. Detects all 3G phones and collect all their identities (IMSI, IMEI and TMSI)
  3. Displays phone model, country of origin and name of network provider
  4. Measures distance to all 3G phones with accuracy of less than 30 m
  5. Selectively force only target’s phones to migrate to GSM mode. Rest of the phones stays in 3G-mode. Being pushed into GSM mode, 3G phones stay there until reboot. It makes possible interception of such phones by GSM passive interception systems. Active systems, after finishing interception, can send them back to 3G-mode.
  6. Selectively blocks communication of 3G target’s phones.

3G-Catcher can be used either as a stand-alone device or integrated with the System of Active Interception SAI 


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