Aktuality



we are collaboration with:

P. Dussmann spol. s.r.o.
SKATACH s.r.o.

Special technique

  1. The DMC device is a selective detector of GSM signals produced by GSM mobile (cellular) phones. The GSM signal analysis respect ETSI specification and is able to eliminate false alarms caused by other RF signals. DMC uses fat signal processing that detect mobile phones also in location which are very close to the cellular base station.

    DMC is resistant against strong FM and TV signals and also against commonly used DECT system. DMC can separately detect analogical RF VH/UHF communication systems in frequences from 20 to 600 MHz. Up to 128 units can be connected to a DMCC control unit. DMCC is able selectively eliminate false alarms caused by communication in local VHF/UHF radio network. DMCC records and detect events that can be logged on a printer or a PC.

    The using of this device id for instance in prisons, banking houses and everywhere where is interdicted to use the mobil phones.

  2. DMCC is a control unit for the DMC detectors. Up to 128 DMC units can be connected to the DMCC control unit. DMCC is able to selectively eliminate false alarms caused by communication in local VHF/UHF radio network. DMCC records all detected events that can also be logged on a printer or a PC.

  3. MRA-3, memory radio analyzer is a special radio receiver designed for instant disclosure of radio bugs running in wide range of the radio frequency spectrum. The negative influence of much stronger local TV, broadcast, mobile, data etc. transmitters is limited by a unique frequency processing combined with extra fast new-old spectrum comparator. Checked "bugs free" spectrum is stored in the back-ground memory and in 6 second periods compared with actual signals. Presence of a new signal is activating the 3-level alarm output. The new signal is also written to the separate alarm memory. This device works full automatic and protect according to setup of sensitivity and material of the building (wood, bricks, steel etc.) rooms, several rooms or smaller hauses.

  4. RFD-2 is a multipurpose sensitive radio frequency detector namely suited for basic service in electronic counter-measures. Simple attendance and optimized user parameters make the RFD-2 detector very useful for all people handling with confidential information. Every day portable usage is one of the best preferred features of RFD-2.

    The main function of RFD-2 is identification and localization of active wireless bug transmitters. Special compensated detection system gives the user instant information about real RF field intensity and together with attached graph the distance of 0.1 to 10 mW bug can be estimated. The unique advantage of RFD-2 soft-ware is detection and localization of technologically most dangerous digital and pulse bug transmitters. The unit also allows permanent room protection, connection of external probe or line adapter LTA.
    In function mode "MEASURE" LED indicates instant RF field level and switchable variable tone makes easy localization of hidden transmitters. Adjustable audio output to earphone gives the user chance to separate TV, broadcast, GSM etc. from a bug transmitter.
    The function mode "PROTECT" is suitable for permanent room protection and has unique features for detection of digital or pulse bugs. The user is alert by a tone beep on each even very short radio pulse and the peak RF level of the pulse is written to the peak memory. The peak pulse level is then together with other function information periodically displayed by two-digit LED.
    RFD-2 is small, light portable equipment namely suitable for operational room or office check. Namely the bankers, stock speculators, important businessmen, managers and other persons who could suffer losses by information leakage should know, that the wireless bug is the simplest, cheapest, juridically hardly provable device, it means the wireless bug is the most common form of eavesdropping.
    RFD-2 is a basic tool for electronic VIP protection.

    RFD-2 application
    1. Detection and localization of radio bugs
    2. Measurement of radio field intensity
    3. Detection of pulse and memory bugs
    4. Detection of digital transmitters
    5. Detection of hopping transmitters
    6. Detection of spread-spectrum transmitters
    7. Measurement of parasite RF radiations
    8. Memory functions for measurement of pulse transmitters
    9. Permanent anti-bug room protection

  5. RFD-5 is a highly sensitive wide-band radio frequency detector with large dynamic range and enormous frequency range. RFD-5 functionality is optimized for professional detection and localization of radio listening devices.

    Current radio-electronics offers a number of eavesdropping systems which cannot be detected before their operative activation. There are two basic solutions to prevent eavesdropping: electronic sweeping and permanent protection. RFD-5 is designed for professional electronic sweeping and additionally it allows even a non-specialist to achieve basic permanent protection.





    RFD-5     is light compact device built in a mechanically robust metal box.
    Its main features are:

    • High sensitivity and dynamic range
    • High frequency range (detection up to 25GHz)
    • Short pulse detection, peak level memory
    • Interference filters
    • Audio signal demodulation
    • Geiger click indication
    • 4-way signal strength indication (bar, numerical, delayed bar, peak)
    • Detecting all radio devices including digital encoded
    • Detecting spread spectrum, hopping and pulse transmissions
    • Detecting mobile phones and computers (including manipulated devices)
    • Permanent protection: events recording (including time and signal level)
    • RF background elimination
    • Possibility to calculate bug radiated power and distance
    • Low power consumption, long battery life


    Fig.: Ability of RFD-5 to detect various radio listening devices.

     

    RFD-5 Technical Specification:

    • Frequency range: 0.5MHz to 25GHz
    • Typical sensitivity: 0.06uW ERP (400MHz / 5cm / level=5)
    • Dynamic range: 43dB basic, + 40dB attenuation LOCAL
    • Detectable pulse width: >80us
    • HF filter (HF OFF): -26dB on 10MHz

    • Audio volume control: 4 levels (range 36dB)
    • Geiger click indication: internal buzzer

    • LCD indicator (2x12 characters)
    • Instant signal strength indication:
    - bar indicator (39 levels)
    - numerical (251 levels)
    • Peak level indication:
    - delayed bar indicator (24 levels)
    - delayed numerical indication (251 levels)
    • Level refresh: level increase 1ms, level decrease 6s (delayed indication)

    • Alarm counter: 99 events
    • Alarm memory: 16 events, including time and signal level
    • Next alarm record delay: 70s

    • Built in telescope antenna: adjustable 1 to 37cm
    • Earphone: stereo type, 32ohm
    • Battery low indication: below 7V
    • External power supply: 12V-20V DC unstabilized
    • Accumulator recharge circuit: optimized for NiCd
    • Battery: 9V model 6F22, or 9V accumulator
    • Current consumption: 3.5 to 6mA
    • Mechanical size: 150 x 60 x 31mm
    • Weight: 295g

  6. RFDS-3 is a multipurpose detection set for detecting wireless, telephone, mains and microphone listening devices.

  7. RVD is a multipurpose sensitive radio frequency detector suited for a fast detection of all types of wireless listening devices. Simple attendance and optimized user parameters make the RVD detector very useful for all people handling with confidential information.








  8. SNG, smart noise generator produces a white noise barrier controlled by embedded microprocessor and gives a permanent protection agains microphone and laser eavesdropping. This device we call intelligent because the level of white noise is operated by the loudness of conversation so as to the resulting sound is for the sound detection inaplicable.

© COMEFLEX s.r.o. 2002