This product is listed in: Counter Surveillance

Scan Detecting Analyzer

Product number: PKI 4235

  • PKI-4235-Scan-Detecting-Analyzer

    PKI 4235 Scan Detecting Analyzer

The PKI 4235 Scan Detecting Analyzer provides you with an overview of the available frequency spectrum in your environment in the shortest possible time. The PKI 4235 Scan Detecting Analyzer system was developed to detect and analyze dangerous radio transmitters using a PC with maximum efficiency. Besides classical radio signals, this also includes signals being specifically modulated onto wiring connections (telephone, alarm, electricity network) as well as signals occurring in the invisible infrared and inaudible ultrasound spectrum. These can be recorded by means of corresponding optional converters and sensors. The detection of signals is based on a scan of the desired frequency range searching for active signals. Known signal sources (radio, TV, communication) can be excluded from the evaluation and analysis as a whole in order to increase the scan speed. The suspicious transmission activities are stored in a database and a series of active and passive tests is applied to them, such as Passive Amplitude Correlation (PAC), Semi-Passive Amplitude Correlation (SPAC), Active Amplitude Correlation (AAC), Active Spectrum Correlation (ASC), Active Parametrical Correlation (APC) and Harmonic Presence Test (HPT). Subsequently, the software assesses the risk and alerts accordingly. The background noise required e.g. for voiceactivated bugs can be produced by the system itself or also by an audio CD in the CD drive of the PC. A „silent mode“ is also available. During monitoring, there is a wide range of possibilities to evaluate the captured signals. Timer functions, audio recordings (e.g. mp3), frequency ranges, modulations, voice scrambling, DTMF decoding, etc. are freely scaleable and leave nothing to be desired. Obtained data are stored in a Microsoft database (.mdB ) and can be further processed with the standard programs in Excel, Word, etc.

Frequency range100 kHz up to 3299.999 MHz
Power supply12 Volt +/- 15 % DC , approx. 0.8 A
Antenna socket2 x BNC, 50 Ohm impedance
Receiver principleTriple superhet with 1st IF: 266.70 MHz, 2nd IF: 10.70 MHz and 3rd IF: 450 kHz
(excl. W-FM)
Receiver sensitivitiesFrequency ranges SSB, CW AM FM WFM
495 - 1799 kHz 5.0µV 25µV - -
1.8 - 49.999 MHz 0.5µV 2.5µV 0.63µV -
50 - 699.999 MHz 0.4µV 2µV 0.5µV 1.4µV
700 - 1300 MHz 0.5µV 2.5µV 0.63µV 1.8µV
1300 - 2299.99 MHz - - 5.6µV 18µV
2300 - 3000 MHz - - 18µV 56µV
Receiver dimensionsApprox. 146 x 41 x 206 mm (WHD)
System requirementsWindows PC (not included in the scope of supply): Win 2000, Win XP, Win 2003
Pentium 2 400 MHz min. 400 MB
Full-duplex sound card with Line In
Active loudspeaker
Free RS 232 and 1 x USB / or 2 USB ports

Scope of supply:

  • PC-based receiver 100 kHz – 3.3 GHz
  • Software CD, reference microphone, power supply
  • DS converter for wiring connections
  • IR converter for IR reception
  • Ultrasound sensor
  • Antenna for receiver