This Wired communications analyzer SPIDER is designed to detect and locate eavesdropping devices, galvanic ally connected to power and low-current wire lines in the inspected object. The analyzer uses both passive and active modes of operations. This allows detecting eavesdropping devices which are in active or in stand-by mode at the time of a sweep operation.

The device implements an essential set of features required for detecting and locating wire connected eavesdropping electronics. Its capabilities include:

• The detection and estimation of signals from hard-wired microphones in low-voltage lines;
• Forced activation of electret microphones by applying a bias voltage;
• Detection of cable transmissions from eavesdropping devices in the frequency range from 100kHz to 150MHz;

• Detection and estimation of unsolicited electric (galvanic) connections to cabling, in the modes of a nonlinear junction detector and a reflection meter;
• Tracing the cabling in walls and other structures;

• Testing multiple conductor cables with the aid of an electronic switch;
• Measuring AC and DC voltages.

The device can be used on its own, or controlled from a computer utilizing special software.