Dual-Mode NLJD Detector - Visual Spectrum, Multi-Band

RF sweepers miss powered-off bugs. The Lornet Star24 NLJD finds them using dual-mode detection—pulse probing for fast room sweeps, CW mode for pinpoint semiconductor location. Visual spectrum display across 800-3600 MHz confirms harmonic signatures so TSCM teams validate threats without false positives.

Key Features & Benefits

• Dual-mode architecture - Pulse probing for 50m range sweeps and CW mode for sub-meter pinpoint accuracy on suspicious electronics
• Visual spectrum analyser - LED bar graph and real-time harmonic display confirm semiconductor signatures before flagging threats
• Multi-band coverage - Hot-swap 800 MHz, 2400 MHz, or 3600 MHz antenna modules to cover cellular, WiFi, and specialized RF bands
• Automatic frequency tuning - Built-in algorithm finds quietest channel in 200 kHz to 13 MHz increments for clean harmonic detection
• Anti-jamming DSP - Filters centre-frequency interference to maintain stable harmonic analysis window in hostile RF environments
• Semiconductor detection - Second and third harmonic analysis reveals passive implants that RF-only sweepers cannot detect
• Ergonomic handheld design - Metal-detector form factor with telescopic rod extending 54-86 cm for wall cavity and under-desk inspections
• Professional battery life - 3 hours pulse mode or 1.5 hours CW operation on dual 12V Li-ion rechargeable batteries
• Audio and visual feedback - Headphone output plus LED bar graph provide multimodal threat confirmation during sweeps
• Modular antenna system - Hot-swap frequency modules eliminate need for multiple detector units across different threat scenarios

Application Uses

Corporate Boardroom Sweeps

Executive boardrooms and R&D facilities require TSCM sweeps before confidential discussions. The Lornet Star24 detects powered-off semiconductor implants—concealed microphones, dormant transmitters, and passive recording devices—that RF sweepers miss because they aren't actively broadcasting. Dual-mode detection sweeps large conference rooms in minutes, then pinpoints exact implant locations for removal. Visual spectrum confirmation reduces false positives from legitimate office electronics.

Diplomatic Facility Security

Embassies and diplomatic safe houses face sophisticated surveillance threats from state-sponsored actors who deploy passive implants during facility maintenance or construction. Lornet Star24's multi-band capability detects semiconductor junctions across 800-3600 MHz, covering cellular, WiFi, and specialized espionage frequencies. Automatic frequency tuning finds clean channels in congested urban RF environments, while anti-jamming DSP maintains detection capability when adversaries attempt electronic countermeasures.

Executive Protection & Forensic Investigations

Private investigators and executive protection teams deploy NLJD tools to validate client claims of electronic surveillance in homes, offices, and vehicles. The Star24's visual spectrum analyzer provides forensic-grade evidence of semiconductor presence, documenting harmonic signatures for legal proceedings. Ergonomic handheld design allows thorough vehicle cavity sweeps, residential outlet inspections, and office furniture examinations without specialized mounting equipment.

How It Works

Lornet Star24 emits carrier signals at 800-3600 MHz through the selected antenna module. Semiconductor junctions in target electronics generate second-harmonic (2× frequency) and third-harmonic (3× frequency) returns. The receiver captures these harmonics at -110 dBm sensitivity, processes them through digital envelope detection, and displays spectral signatures via LED bar graph. Pulse mode delivers 18W peak output for 50m detection range but consumes more battery (3h runtime). CW mode uses sustained 300mW for precise location with extended 1.5h continuous operation.

Technical Specifications

• Model: LORNET-STAR24
• Frequency bands: 800 MHz / 2400 MHz / 3600 MHz (modular antenna modules)
• Tuning resolution: 200 kHz (800 MHz), 2 MHz (2400 MHz), 13 MHz (3600 MHz)
• Peak output power: 18W pulse mode, 300mW average CW mode
• Receiver sensitivity: ≤ -110 dBm
• Detection range: Up to 50m pulse mode, sub-meter CW mode
• Harmonic analysis: Simultaneous second and third harmonic detection
• Battery: Dual 12V Li-ion rechargeable, 3h pulse / 1.5h CW runtime
• Display: LED bar graph spectrum analyser with audio headphone output
• Rod length: 54-86 cm telescopic (collapsible for transport)
• Weight: 0.8-1.5 kg (varies by antenna module)
• Operating temperature: +5°C to +40°C
• Form factor: Handheld metal-detector style with ergonomic grip

Compliance & Lawful Use

NLJD devices detect electronic components and require proper authorisation for deployment in private spaces. This tool is intended for lawful counter-surveillance operations by licensed TSCM professionals, corporate security teams, and law enforcement agencies only.

What's in the Box

• 1 × Lornet Star24 detector unit
• 1-3 × Antenna modules (800 MHz / 2400 MHz / 3600 MHz per selected configuration)
• 1 × Telescopic rod (54-86 cm collapsible)
• 1 × Remote control module
• 2 × Rechargeable 12V Li-ion batteries
• 1 × Battery charger and charging container
• 1 × Headphones for audio monitoring
• 1 × Operator's manual
• 1 × Protective carrying case

Frequently Asked Questions

1. What's the difference between pulse and CW mode?

Pulse mode delivers 18W bursts for fast wide-area sweeps covering up to 50m. CW (continuous wave) mode uses sustained 300mW for pinpoint accuracy when you've located a suspicious area and need exact implant position within centimetres.

2. Can this detect bugs that aren't powered on?

Yes. NLJD technology detects semiconductor junctions by analysing harmonic returns from emitted carrier signals. Powered-off bugs still contain semiconductor components (diodes, transistors) that generate harmonic signatures when illuminated by the Star24's carrier frequency.

3. Which frequency band should I use?

800 MHz provides the deepest penetration for wall cavities and thick furniture. 2400 MHz offers balance of range and resolution for general room sweeps. 3600 MHz delivers highest resolution for pinpoint detection in tight spaces. The modular system lets you hot-swap antennas mid-sweep.

4. What battery life can I expect?

3 hours continuous in pulse mode or 1.5 hours in CW mode per charge. Typical boardroom sweep alternates between pulse (room scan) and CW (pinpoint) modes, providing 4-6 hours mixed use. Dual batteries support back-to-back facility sweeps.

5. Does this require special training?

Yes. Effective NLJD operation requires understanding harmonic signatures, false positive sources (legitimate electronics), and systematic sweep patterns. Every Lornet Star24 purchase includes TSCM consultation and operator training tailored to your facility's RF environment.

6. How does visual spectrum display help?

LED bar graph shows second and third harmonic strength in real-time, letting you distinguish genuine threats from background electronics. Legitimate devices generate different harmonic ratios than covert implants. Visual confirmation reduces sweep time by eliminating repeated checks on false positives.

Learn More

• Browse our complete Bug Detector range to compare detection methods and pricing.
• See the complete Buyers Guide for Counter Surveillance