• 3g Forensics


  • MCSA


    MCSA

    MCSA is a technology that can be integrated into a variety of products; from mobile phone detection, through IMSI Grabbing, to Off Air monitoring. Deployment can be overt or covert.

    MCSA is a technology that can be integrated into a variety of products; from mobile phone detection, through IMSI Grabbing, to Off Air monitoring. Deployment can be overt or covert.

    Overview

    Developed by Crownhill Associates Limited this type of technology has already been deployed in the product, Fenris. Fenris is capable of detecting the distinct fingerprint that a Mobile Phone transmits whilst it is in use.
    Used as a deterrent, Fenris can both visually and audibly alert people in the vicinity that a Mobile Phone has been detected and instruct them to switch their phone off.


    When installed covertly, Fenris can be connected to via IP and silently notify personnel that a Mobile Phone has been detected through the Fenris software interface.


    Fenris was a proof of concept design - The Fenris Product design has been sold. It is expected to re emerge shortly as the core of a new mobile detection system targeted at prisons and Gov't institutions.

    MCSA

    MCSA is a technology, developed by Crownhill, to enable easy integration of mobile communications signal analysis. The technology is based upon a Fractional-N synthesizer and signal processing sub system coupled with VLIF/DCR Receiver to provide a low-cost multi-band scanning receiver with wide band capabilities 800Mhz - 2.4Ghz


    The IF inputs are digitised, filtered and down converted to baseband I and Q signals. The flexible baseband interface can be configured for either analogue or digital operation. From here the signals can be further analysed. MCSA incorporates an FPGA providing the essential communication processing functions, including modulation, demodulation, error correction encoding and decoding, digital to analog/RF, RF/analog to digital, formatting, data storage and baseband interfaces.


    MOBILE PHONE detection and demodulation functionality is inherent in the MCSA design, however, functionality is limited only by the post processing application, examples being:
    • Monitoring of mobile registration, call set-up, handover and call completion
    • Measurement of RSSI
    • Decoding of cell site configuration from FCCH, BCCH data
    • Layer 2 data output
    • Layer 3 data output
    • Logging of raw data for post processing by third party tools.

    Not just Mobile Phones

    In addition to Mobile Phones, this concept can also be applied to almost any RF device which uses complex modulation. Potentially, it's possible to detect all manner of devices, such as RFID, WiFi and Bluetooth. Don't hesitate to contact us should you require such a solution.

    Potential uses

    MCSA is incredibly versatile. Some examples of deployment include:

    Deterrent

    • Hospitals
    • Theatres and Cinemas
    • Airports
    • Military Bases
    • High-security areas
    • Examinations (Schools, Universities, etc)

    Covert

    • Prisons and Correctional facilities
    • Surveillance operations
      • Mobile Phone detection
      • Off Air IMSI/TIMSI monitoring
      • Passive GSM Intercept

    Technical

    • Protocol Analysis

    Specifications

    • Continuous operation from 800Mhz - 2.1Ghz
    • Demodulator for continuous phase FSK (CPFSK) and its derivatives:
      • Minimum shift keying (MSK)
      • Gaussian frequency shift keying (GFSK)
      • Gaussian minimum shift keying (GMSK)
      • Programmable 2-, 4-, 8-ary FSK
      • Programmable modulation index h [0.125 to 4]
      • Programmable data rates up to 30/20/10 Mbps.(8-, 4,2-ary FSK).
      • Coherent demodulator for better BER performances.
    Detects:
    • GSM
    • CDMA
    • 3G (In Development)
    Frequency Range:
    • Band 1 (850) 824-849 MHz
    • Band 2 (900) 880-915 MHz
    • Band 3 (1800) 1710-1785 MHz
    • Band 4 (1900) 1850-1910 MHz
    • Band 5 (3G) (In Development)
    Other frequency bands in the range 850-2400Mhz may be catered for by bespoke development.