ST-301 Spider Telephone Line Analyzer

ST-301 Spider: Telephone Line Analyzer for Eavesdropping Detection

The ST-301 Spider is an advanced device designed to detect and analyze any type of spy device hidden in communication and power lines, protecting your conversations and data from unauthorized eavesdropping. This line analyzer is ideal for use in high-security environments such as government offices, military installations, corporations, and any place where confidentiality of communications is critical. Its ability to identify and locate devices galvanically connected to power and low-current lines makes it an essential tool for security and counterintelligence professionals.

The ST-301 Spider not only detects surveillance devices in active mode (those transmitting signals), but also those in passive or standby mode. This includes hidden microphones, transmitters and other listening equipment installed on a building’s communication or power lines. By operating in four different detection modes, the device offers wide coverage to ensure that no threat goes unnoticed.

How does the ST-301 Spider work?

The ST-301 Spider uses a combination of detection modes to identify spy devices that may be hidden in power or communication lines. Its main modes of operation are:

• Low Frequency Amplifier (LFA) : This mode amplifies weak signals at low frequencies, allowing the detection of microphones or spy devices that use these frequencies to go unnoticed. It is ideal for detecting dynamic or electret microphones that may be hidden in communication lines.
• Wired Receiver (WR) : In this mode, the ST-301 Spider acts as a receiver to intercept and analyze signals traveling over power or communication lines. This allows security professionals to detect any unauthorized transmissions that use the wired infrastructure as a transmission medium.
• Non-Linear Junction Detector (NLJD) : This mode identifies the presence of electronic components on the lines, such as those used in spy devices. Unlike other detection methods, NLJD can find devices that are not emitting signals because it detects the semiconductors inside the equipment, making it ideal for locating spy equipment that is in standby mode or turned off.
• Reflectometer (REF) : This mode sends a signal through the wires and analyzes the signal return to detect any interruption or disturbance in the line. If there is an unauthorized connection, such as a listening device or tapping on the line, the Reflectometer will detect it immediately.

Applications of ST-301 Spider in the Detection of Spying Devices

The ST-301 Spider is an indispensable tool for those who need to protect their communications and data from potential espionage attacks. Its applications include:

• Protecting Communications in Corporate Offices: In a business environment, telephone and communication lines are vulnerable to being intercepted by eavesdropping devices. The ST-301 Spider can scan these lines to ensure that there are no unauthorized transmissions or hidden listening devices.
• Security in Government and Military Environments: Government and military installations require a high level of security in their communications. This device ensures that telephone and data lines are not tapped, protecting sensitive information.
• Security Verification for Private Investigators: Private investigators can use the ST-301 Spider to assure their clients that there are no hidden listening devices in their offices, homes, or vehicles.
• Network Security Audit: In environments where complex communication networks are handled, such as companies with extensive telecommunications infrastructures, the ST-301 Spider can be used to inspect lines to ensure there are no unauthorized modifications or hidden listening devices.

ST-301 Spider Technical Specifications

• Low Frequency Amplifier (LFA): Frequency range: 20 - 25,000 Hz. Adjustable gain from 0 to 60 dB.
• Wired Receiver (WR): Frequency range: 0.1 - 180 MHz. Scan time: 0.3 - 1 second. AM and FM demodulation.
• Non-Linear Junction Detector (NLJD): Test signal: 60 Hz, with separate indication of even and odd harmonics. Minimum detectable level: 0.1% non-linear distortion.
• Reflectometer (REF): Distance range: 3 - 150 meters. Accuracy: ±0.6 meters.
• Power: Rechargeable lithium polymer battery, 3.7V, with up to 3 hours of continuous operation.
• Weight and dimensions: 165 x 98 x 40 mm (main unit), 0.47 kg (main unit).

Conclusion

The ST-301 Spider is a comprehensive solution for detecting eavesdropping devices on communication and power lines. Its ability to operate in active and passive modes, wide detection frequency range, and four operating modes make it the perfect tool for protecting critical information and communications in high-security environments. With its multiple applications, this analyzer is a must-have tool for security professionals, private investigators, and anyone concerned about protecting their data and communications.

Package Contents

• ST-301 Spider Main Unit
• Main unit charger
• Flash memory card
• Connection cables
• Headphones
• Adapters for testing power and communication lines
• Rugged carrying case