TSCM Sweep


  • Intensive search of any accessible hiding variant, the time-consuming, manual search is carried out in the rooms determined by priority of the probability of insertion of eavesdropping

  • Check hidden cavities using controlled video endoscope, miniature endoscope, inspection mirrors and other optical aids

  • Investigation of furnishing and decoration items, gifts and presents, wall and floor sockets, electrical fasteners and multiple sockets by means of a non-linear junction detector

  • Detection of pin-hole and other mini camera systems with special optical and RF-technical devices

  • Investigation for active infrared systems

  • Passive infrared thermography of parts of the building structure, furnishings and electrical

  • equipment on near-surface heat sources (so-called "hot spots")

  • Use of a mobile high-resolution X-ray machine


  • Long-term recording of a broadband RF spectrum for the detection of special digital techniques (FH, DS spread spectrum systems, burst transmitters, ...)

  • Checking the radio frequency spectrum using spectrum analyzers and broadband receivers as well as software-controlled spectral analysis

  • High-frequency measurements in the room for locating active and passive transmitting and recording equipment and hidden electronic components

  • Investigation of the high-frequency spectrum by means of real-time differential spectrum analysis (origin determination of each carrier frequency by continuous field strength comparison between the spatiality to be examined and the building environment) with spectrum analyzer

  • Field strength measurements with broadband near field receiver using the physical principle of the "near field effect"

  • Special examination for tampered WLAN systems in the 2.4 GHz and 5 GHz range, which are not detected with normal WLAN technology (country-specific WLAN systems)

  • Checking for illegal GSM technology and checking for possible use of an IMSI catcher or similar technology to monitor mobile communications at the time of the action



  • Checking of telecommunications and network lines with regard to conspicuous VLF and RF signals by means of external voltage-resistant audio amplifiers and inductively coupled near-field receivers or spectrum analyzers

  • Investigation of all circuits on VLF and RF signals by means of external voltage-resistant audio amplifier and inductively coupled near-field receiver or spectrum analyzer

  • Testing of telecommunications junction boxes and adapters using a semiconductor detector (NLJD)