ST-300 Spider Wire Line Analyser

Listed in Wire lines analyzers


ST-300 Spider application:

Wire lines analyser ST-300 SPIDER has a set of most common features implemented allowing to detect and localization of wired eavesdropping devices.

ST-300 Spider main features:

  • Detection and evaluation of low-frequency signals in low-current conductive lines;
  • Activation of electret cable microphones by filing an in-line bias voltage;
  • Detection of eavesdropping devices signals, which are transmitting information via power and low-current lines in the frequency range from 100 kHz to 150 MHz;
  • Detection and assessment of unauthorized galvanic connections to conductive lines using methods of non-linear junction detection and reflectometry;
  • Tracking wire lines laid in walls and other building structures using trace locator.
Use of automated mode of the analyzer, in combination with an electronic commutator, allows to carry out various kinds of measurements on all the possible combinations of pairs of multi-wire cable in a few seconds. Adapters, couplers and cables, included in the ST-300 SPIDER delivery set, allows connecting the device to the most common types of wired lines. The device can be used in standalone mode or controlled from a personal computer.

Modes of operation:

The successful detection of wired eavesdropping devices is ensured by the multifunctionality of ST 300, appropriate accessory pack and the use of passive and active modes of operation.
ST-300 unique technical solutions and implemented algorithms allows to use this device in the following modes:
  • Electronic commutator;
  • Low-frequency amplifier;
  • Wireline receiver;
  • Non-linear junction detector for wire lines;
  • Reflectometer;
  • Trace locator.
Switching ST-300 in any of these modes is carried out automatically when a particular probe is connected. At the same time, the device can only operate in one of the main modes.

ST-300 SPIDER technical characteristics:

Low-frequency Amplifier
Frequency range, Hz 20....25 000
Input impedance, Ohm 200
Amplification range, dB 0....60
Maximum signal amplitude on input, V +/-13,8
Spectral density of voltage noise nV,Hz 3
Bias voltage range, V +/-26
Signal visualisation oscillograph, spectrogram
Wireline receiver
Frequency range, kHz 100....150 000
Time to scan the entire range, s 2
The minimum detectable signal level, dBm -50....-75
Dynamic range, dB 55
Input impedance, Ohm 50
Demodulation AM, FM
The filter bandwidth, kHz 80
The maximum allowable voltage In 250(AC), 80(DС)
The presentation of information
Non-linear junction detector
Signal Amplitude, V 0....13
Signal frequency, Hz 45....55
Split indication of even and odd harmonicas present
Minimally detected level of non-linear distortions, dB -60
Line length, m 0...100
Measurement error percentage, % +/-1
Possibility of operation in lines with voltage no
Digital Voltmeter
Measurement range DC, V +/-80
Measurement range AC, V 13
Frequency range, Hz 0....30 000
Trace locator
Test signal carrier frequency, kHz 100
Signal modulation frequency, kHz 1...2
Signal amplitude, V 13
Indication Light, sound
Possibility of the contact connection to the line Yes
Power Supply
Built-in Li-pol accumulator with voltage, V 3,7
Consumed power, V 1,2....2,5
Time of continuous operation at maximum consumed power, hour >7
Charging time of fully charged accumulator, hour 7
Dimensions of the main unit (length, width, height), mm 175х83х36
Weight of the main unit, kg 0,375
Package dimensions (length, width, height), mm 390х310х170
Weight of the set in the package, kg 4,4