TECHNICAL DESCRIPTION AND OPERATING MANUAL ST131 <PIRANHA II> and ST131N
4
1 GENERAL CHARACTERISTIC
1.1 Purpose and main features
A multifunctional detection device ST131 is intended for detecting and localization of special
technical means (STM) for surreptitious information gathering as well as identification of natural and
artificial sources of information leakage.
The main types of the STM, for detection of which ST131 is intended, are:
The STM with information transfer by radio channel. These primarily include:
•
Radio microphones, including those with the accumulation and subsequent transfer of information (so-
called “burst transmitter” STM) and Frequency Hopping Spread Spectrum (FHSS);
Telephone radio transmitters;
Radio stethoscopes;
Video cameras with radio transmitters;
Unauthorized use cell phones and modems of CDMA, GSM, UMTS and DECT standards as well as the
devices with digital channels of data transmission such as WLAN, BLUETOOTH and LTE standards;
STM with the composition of the spatial high-frequency irradiation device;
Radio beacons for tracking of moving objects.
The STM that uses the following lines for information transfer: such as AC power,
telephone, coaxial, security and fire alarm cords.
The STM with information transfer in the infrared frequency range.
The STM with information transfer in the ultrasonic frequency range.
Natural and artificial channels of acoustic information leakage, detection of which is
included in the ST131 tasks, are:
Acoustic information channel emerged:
in wired lines for various purposes, as a result of acoustic-electric conversion ("microphone effect").
as a result of the absence or lack of sound insulation in the surveyed areas.
