ST 131, ST 131N «PIRANHA II»
"ST131 PIRANHA II" and "ST131N" are intended for detection and localization of eavesdropping devices, as well as identification of natural and artificial sources of information leakage.

The difference between “ST131 PIRANHA II” and ST131N is the presence of  ST131N an additional option: " NON-LINEAR JUNCTION DETECTOR in wired lines".

 Externally, the differences consist in that ST131N has an additional connector on the front panel of the main unit and the fourth wire in the wire line adapter ST131AWL.N.

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The main types of the Bugging devices, for detection of which ST131 is intended, include the following:

The Bugging devices with transfer of information by radio channel. Such devices include first of all:

  • Radio microphones including devices with storage and subsequent transfer of information (burst transmitter) and Frequency Hopping Spread Spectrum (FHSS);
  • Radio stethoscopes.
  • Wireless cameras.
  • Mobile phones and modems of the CDMA, GSM, 3G, DECT standards used without authorization.
  • Devices using digital channels of data transmission of the 4G, WLAN and BLUETOOTH standards.
  • GPS tracker

The Hardware wiretap that uses telephone, coaxial, security and fire alarm lines for information transfer in an audio and RF fraequency ranges

Carrier Current Bug

The Bugs  that are characterized by  transmission of information in an infrared and visible frequency ranges

The Bugs that are characterized by transmission of information in an ultrasonic frequency ranges

Detection of electronic devices (digital voice recorders, mobile phones and smartphones in standby mode, and so on) based on the their spurious electromagnetic radiation.


Construction of ST131 / ST131N envisages two basic modes of operation:

  • Portable, using the capabilities of the main unit and attachments
  • Stationary, using the original software "ST131Analyzer.pro".

 ST131СОФТ.jpg  крепление.jpg


MAIN UNIT

 1

  Control socket

 2

  Output of test signal generation (only for   ST131.N)

 3

  Socket for connection of transducers operating in   ACOUSTOELECTRIC channel and Magnetic   Field   Probe
 4

  Socket for connection of wire line adapter (WIRE   LINE channel)

  and HF antenna (RADIO channel 0.01-30MHz)


 1

  Line Out
 2

  "3.5" socket for connection of headphones
 3

  Volume control
 4

  Battery compartment covers.

 5

  Power ON/OFF
 6

  Power supply socket
 7

  USB socket

 1
  "+" and "-" increase/decrease of display  brightness   level and switching between the  bands
 2
  "SET" entry in main MENU
 3
  "INFO" - viewing the current settings of the device
 4

  CONTEXT BUTTONS

  Purpose of the context buttons F1 – F5 is to   indicate in the lower line of the display such   information that depends on the selected channel   and operating mode in this channel.

 5

  FUNCTIONAL BUTTONS

  "Full"- switching on the mode FULL RANGE
  "BND" - switching on the mode BAND

  "DMD" - switching on the mode   DEMODULATION 

  "L" - -switching on the sub-mode SCALE
  "MEA" - access to measuring function

 6
  "M" - switching on the sub-mode MEMORY
 7
  "A" - switching on the sub-mode AUTOMATIC   ANALYSIS
 8
  "><" - manual selection of noise level relative to    zero value and choosing items in the MENU
 9
  ">0<" - automatic calculation of noise level   relative to zero value
10
  "ENT" - entering function (pressing VALCODER   also equal to press ENT in most cases)
11
  "0-9, ." - digital keyboard

SOFTWARE

SPECIAL SOFTWARE "ST131 ANALYZER PRO" EXTENDS CAPACITIES OF the ST131 FOR ANALYSIS AND PROCESSING OF SIGNALS.

      This software is implemented the following functions:

  • Spectral, oscillographic, and vector analysis;
  • “waterfall” viewing;
  • Creation of signals data base;
  • monitoring feature with expanded presets;
  • Streaming recording of signals to the PC



UHF CONVERTER ST131.UHF

UHF converter is a downconverter of 30 – 4400 MHz frequency range into the frequency range of the WIRE LINE channel.

 1

  SMA socket

 2

  Switching-on and battery discharge LED

 3

  Power switch ON/OFF

 4

  Data exchange LED

 5

  Thread opening 1/4”

6

  Battery compartment cover



WIRE LINE ADAPTER ST131.AWL/ST131.AWLN

ST131AWL has been constructively combined:

  • the reducing voltage converter transformer which is designed to operate in the frequency range of 0.01 - 30 MHz;
  • high gain differential amplifier which is designed to use in the acoustic frequency range (0.3 - 15 KHz);
  • the switching unit which is controlled directly from the main unit and provides connection to the contact pairs of the RJ-45. Connection is possible for the most common combinations of pairs ("4-5", "3-6", "1-2") as well as user-defined selection.
  • the amplifier of the test signal generator (Only for ST131.AWLN);

Connecting to the line occurs with:

  • connector RJ-45 (3) which provides connection to ETHERNET or telephone line as well as pass-through connection;
  • connectors for connecting test leads (1) that provide connection to other types of wire lines;

 1

  Bananas

 2

  Ground connector

 3

  RJ-45 socket

 4
  Indicators of voltage in Line (LINE)
 5
  Indicator of overload of signals (OVERLOAD)
 6
  Indicator of power supply and link with the main   unit (PWR/LINK)


RADIO WIRE LINE ADAPTER ST131.RAWL

ST131.RAWL is intended to operate the WIRE LINE channel in the frequency range of 30 - 3000 MHz.

ST131.RAWL has been installed components that protects against failure of the input circuits of the UHF converter.

ST131.RAWL connects to a single-type connector «SMA» of the UHF converter ST131.UHF. Input connector type "F" is designed for direct connection to the coaxial lines. For connecting t to the lines with BNC type connector use an adapter «BNC-F».


UHF ANTENNA (ST131.UHF.A)

ST131.UHF.A is a broadband passive antenna

 1 
  SMA socket
 2 
  Antenna

ADDITIONAL EQUIPMENT

SHF DETECTOR "ST131.SHF"

MAGNETIC FIELD PROBE ST131.MF

TESTING DEVICE "ST131.TEST"
INFRARED PROBE ST131.IR
BIASING MODULE ST131.0V


DETECTING CHANNELS

CHANNEL "RADIO"

This channel provides the reception and the subsequent processing of radio signals in the frequency range 0.01 - 18000 MHz. 
To work in the range of 0.01 - 30 MHz is used the included telescopic antenna or other antenna of this frequency range. 
To work in the range of 30 - 4100 MHz is used the UHF converter "ST131.UHF" and the UHF antenna " ST131.UHF.A" 
To work in the range of 4000 - 18000 MHz is used the microwave antenna - detector «ST131.SHF».

WIRE LINE CHANNEL

This channel provides the reception and the subsequent processing of the signals which are transmitted by wires for different purposes (power, telephone, coaxial, computer networks, security and fire alarm systems, etc.). The allowed voltage in the lines (DC or AC) is up to 250 V.

To work in the ranges of 0.3 - 15 KHz and 0.01 - 30 MHz is used the wire lines adapter "ST131.AWL".

To work in the range of 30 - 1000 MHz is used the adapter "ST131.RAWL" with the UHF converter.


OPTICAL CHANNEL

Receiving and processing of theemission in the optical frequency range is provided in this channel.

Infrared detector ST131.IF is intended for operation in this channel.


ACOUSTIC-ELECTRIC CHANNEL

Receiving, amplifying and analyzing of signals within the frequency range of 10 Hz – 125 kHz is provided in this channel.

Application of one or other types of acoustic transducers depends on the tasks taking into account parameters of this channel.

Ultrasonic signal is converted into audio frequency signal by means of digital heterodyning.

For the detection of side electromagnetic emission generated by devices such as digital voice recorder, cell phone, smart phone, etc. intended a magnetic field sensor "ST131.MF".




Work in entire frequency range  FULLclear.jpg 
Detailed analysis of the signals in the selected band
 
Decrease of the swath increases signal/noise ratio in
inverse proportion to the band in addition to increase horizontal resolution
BNDclear.jpg
Аudio control of the demodulated signal.
 DMDclear.jpg
 Multi-segment scale level of signal

Sсфду is the most required option in case of localization the STM.
 
ДИАПАЗОН.jpg
Automatic detection of signals  exseeds predetermined 
threshold   with creation of database

ANALYSfullclear.jpg
Instant and detailed patterns
Detailed pattern automaticaly adapted for any range

ДИАПАЗОН.jpg
Analysis of signals in the frequency and time domain

Absolute and relative measurements using cursor lines
MEAclear.jpg
Creating a list of signals in automatic and manual mode

Transfer data to PC

ДИАПАЗОН.jpg



Special indicator levels of signals cellurar and wireless
data transmission 

Level meter of signal of base station







ДИАПАЗОН.jpg
Automatic and manual analysis of pairs of ETHERNET cable  ДИАПАЗОН.jpg
NON-LINEAR JUNCTION DETECTOR OPTION (only for ST131N)

NJclear.jpg
 FIRMWARE UPDATE

Updates take place automatically when you select the latest version of the software at manufacturer's website and start the upgrade.
 
 

SPECIFICATIONS
DIGITAL SIGNAL PROCESSING MODULE
Simultaneous processing frequency range, MHz
0.01 - 30
Resolution ADC, bit
10, 14, 16
Number of FFT points
32768 (PC mode), 512 (main unit)
Bandwidth, MHz
0.0005 - 10 I`Hz
Demodulation types
AM, FM, SSB, TV (AV)
"RADIO" CHANNEL
Frequency range1, MHz
0.01-30
Displayed noise level
Within the whole bandwidth, dBm
Within DDC bandwidth 1 kHz, dBm

-110

-150

Value of the possible bandwidth, MHz 10, 5, 2, 1, 0.5, 0.2, 0.1, 0.05, 0.02, 0.01, 0.005, 0.002, 0.001, 0.0005
Frequency range2, MHz
30 - 4400
Displayed noise level
Within the whole bandwidth, dBm
Within DDC bandwidth 1 kHz, dBm
-110 (PC mode), -90 (main unit)
- 130
Input signal maximal level, dBm
5
Sweep speed, GHz/sec, max
10
Value of the possible bandwidth, MHz 2048, 1024, 512, 200, 100, 50, 20, 10, 5, 2, 1, 0.5, 0.2, 0.1, 0.05, 0.02, 0.01, 0.005, 0.002, 0.001, 0.0005
Identified data transfer standards CDMA, GSM, 3G,4G, WLAN, BLUETOOTH, DECT
Frequency range3, MHz
4000-18000

Graph of dependence the demodulated output signal at a frequency of 10 kHz from the frequency of the microwave signal incident on the antenna of the electromagnetic wave with a constant (frequency-independent) the electric field intensity 0.7 V/m.

Threshold sensitivity, W/cm2 -65
Antenna beamwidth, degrees
60-90
"WIRE LINE" CHANNEL
Frequency range 1, MHz
0.01-30
Displayed noise level in full range - 90 (120 for PC mode)

at 1 kHz band for Main Unit, dBm, not worse

-125
Input signal maximal level, dBm 20
Maximal permitted input voltage, V 380
Value of bandwidth IF, kHz
6800, 2500, 630, 150, 75, 40, 10, 5, 1 e` 0.5
Gain input amplifier
-5, 1, 7, 13, 19, 25, 31, A`KG
Frequency range 2, KHz 0.3 - 15
Displayed noise level in full range, dBm, not worse -115 (140 for PC mode)
Input signal maximal level, dBm 20
Gain input amplifier

14, 26, 38, 44, 50, 56, AKG

Common-mode interference attenuation factor, dB 60
Maximal permitted input voltage, V 250
Frequency range 3, MHz 30-3000
"OPTICAL"CHANNEL
Dynamic range, dB 60
Frequency range, MHz 0.01-30

INFRARED PROBE ST131

Spectral range, nm
770-1600
Angle of sight, degrees 30
Wire length 1.5
"ACOUSTOELECTRIC" CHANNEL
Frequency range, KHz
0.01-125

Displayed noise level in full range, dBm, not worse

-100 (148 for PC)

at 1 kHz band for Main Unit, dBm, not worse

-120
Input signal maximal level, dBm -5
Gain input amplifier

6, 14,20, 26, 34 e` 40

MAGNETIC FIELD ST 131

Frequency range, Hz 30 – 30000
Transformation ratio (1000Hz), B*m/A 1.00±0.01
Threshold sensitivity, A/m*Hz1/2 ,less than 2*10-6
NON -LINEAR JUNCTION DETECTOR
Frequency of test signal, kHz 150-220
MAIN UNIT
Dimensions, mm
190x97x50
Indication
3.5” 240x320, TFT 262144 colors
Interface USB 2.0, 200 Mbit/s
Power supply
6 AA batteries (rechargeable batteries)
DELIVERY SET
Main unit
1
UHF converter (ST131.UHF)
1
Broadband UHF antenna (ST131.UHF.A)
1
Wire line adapter (ST131.AWL) 1

RF wire line adapter (ST131.RAWL)  1
Probes set + alligator clips
1
220V clips + "GROUND" wire 1
«F-BNC» adapter 1
Main unit supporting block
1
Main unit shoulder holder
1
Headphones
1
Tripod
1
Power supply unit
2
USB cable 1
AA batteries
8
USB Flash  with software
1
Hex-nut wrench 1
User manual
1
Supplementary set
SHF Detector ST131.SHF
IR probe ST131.IR
Magnetic field probe ST131.MF
Testing devie ST131.TEST
Biasing module ST131.OV