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The LUX       Non linear junction detector

Non Linear Junction Detector represents a unique equipment capable to find out practically all concealed eavesdropping devices though the analysis of harmonic emissions caused by an

Illuminating signal when it is reflected off of a target.

Semiconductors contain multiple layers of silicon, a P-Type and an N-Type, the point where they meet is called a Non Linear Junction. A Non Linear Junction Detector finds potential eavesdropping

Devices by flooding a suspect area or target with a spectrally pure microwave RF signal. Various frequencies are then monitored for a reflected harmonic signal.

Non-linear junction detector "LUX" produced since 2004 is designed for detection and localization of various kinds of
electronic devices containing semi-conducting components as well as dissimilar metals contacts of different origin.

Today "LUX" is acknowledged by some experts among the best junction detectors produced in Russia as well as abroad. Taking into account its performance mass and dimensions parameters

"LUX" leaves behind even the "ORION" - most popular junction detector produced in USA.

"LUX" junction detector is designed as a unit piece comprising an antenna and a control unit.

The control unit consists of a transmitter, two multiple channel, highly sensitive radio receivers, tuned to specific second, and third harmonic frequencies, and a processing block

The antenna is mounted on an extendable pole.

Key buttons and LED indicators are positioned ON a front panel.

Accumulator box is attached to the unit with a threaded joint.

The contacts original design provides for secure and fail-safe power supply of the device in most heavy service conditions.

Plug and socket units for battery charger and headphones are located on the accumulator end-face plate.

Non Linear Junction Detector "LUX" makes it possible to detect and localize live or inactive bugs, turned on or off, burned out or dead bugs, concealed video cameras, microwave transmitters,

Remote control or remote powered bugs, resonant cavity devices, concealed cellular telephones, wireless microphones, hidden tape recorders, electronic timers for hidden bombs and many Other interesting things.

All such devices may be concealed in brick or concrete walls, in wooden or metal furniture, in some bodies’ personal belongings, under clothing etc.

The results of investigation can be read in two ways – through the headphones or by LED indicators.

Left and right bands of LED display indicate second and third harmonic frequencies. "LUX" also finds out different dissimilar metals contacts such as the rust on a screw, pipe joint, bad welding, the springs or the support structure in any piece of furniture and so on because such structures may also contain non linear junctions resulting from corrosion.

 

The junction detector makes it possible to distinguish these signals from indications of dangerous devices  

The device continuous work time is not less than 4 hours.

Small dimensions, portability, ergonomic design and weight that not exceed 1, 3 kilogram (including the batteries) makes the detector handy in different service conditions.

Important feature is the absence of any optional modules attached with usually non-reliable and inconvenient plug and socket units.

  

 Specifications:

 

 poer supply - Accumulator (7,2 V)Continuous operation time - Not less than 4 h.

 The transmitter operates in a pulse mode in a frequency range 915 MHz

 Spacing of retuning 200 KHz>

 Maximum impulse output power 16 V±1 Db

 Minimal impulse output power 1,6 Db

 Receiver’s adjustment frequencies are equal to double or triple transmitter frequency accordingly.

 Both receivers sensitivity at signal/noise ratio not less than 6 Db -136 Db/W

 Receiver dynamic range not less than 30 Db

 Manual receivers amplification control in 4 steps; each step equals to (10±1) Db

 In a "20K" mode of operation both receivers emits signals modulating radio-frequency pulse pattern. Demodulated signal bandwidth 500-2000 Hz.

 There are three aerials combined in one unit.

 Beam Width Angle (at 3 Db level on transmitting and receiving aerials) not more than 90.

 All aerials are circular polarized.