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Nimonic Solutions  

Non linear junction detectors



NLJD-01
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.

SPECIFICATIONS
  • Power 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
  • Receivers 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-frequencypulse 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.

Download the documentation download



NLJD-02

This small-sized nonlinear device is intended for detection of transceiving and radioelectronic facilities including cellular telephone SIM Cards, dictaphones, etc. Only Second harmonics.  Range of coverage – from 10 mm to several meters (depending on the device type detected).

Technical specification
  • Type of signal– impulse, continious;
  • Effective transmitting output – 0,5 W;
  • Receivers sensivity -150 Db/W;
  • Transmitter operating frequency - 2400 MHz;
  • Free channel selection – automatic;
  • Power flux density in the scanning area vector– not more than 200 μW/cm;
  • Dynamic range– 80 Db;
  • Transmitting and receiving antennaes - circular polarized;
  • Working time in impulse mode – about 2,5 hours;
  • Working time in continious mode – not less than 2 hours;
  • Automatic discharging control indication;
  • Charging time – 2 hours;
  • Weight – not more than 350 grams;
  • Dimensions– 220 х 90 х 90(30) mm;
  • Battery – Li-Ion accumulator;
  • Operating temperature - from -10 to +40°С;

Download the documentation download





NLJD-03

N
LJD-03 is a multifunctional device, which is ready to work as metal detector and non-linear junction detector at the same time.

Non-linear junction detector is mounted inside the standart shell of the hand-held metal detector
(F.ex. Garrett Super Scanner).

No visual signs of non-linear junction detector. Indication of the threats found by non-linear junction detector is showing through the standart metal detector indicators/LEDs.



Specification (common):
  • Working Temperatures - from +5 till  +40°С
  • Weight – not more than 1 kg (total weight including the weight of original device)
  • Dimensions - 83 х 413 х 420 mm
  • Power source - Li-Ion battery 1,2 A/h х 7,2 V
  • Working Time - approximately 4 hours
  • Automatic control of the battery level
  • Time of charging– 1 hour
  • Headphones/charging jack
  • Humidity: up to 95% without direct condensing on the device

Specification for the non-linear junction detector:
  • Effective impulse output power  – 3 W +/- 1,5 Db
  • Sensivity of the receiver -120 Dbm

Specifications for the metal detector: 
  • Working Frequency- 93 кHz
  • Optimum distance to find steel objects – 0,10-0,15 m
  • Light and sound alarm indication; buzzer: 2 kHz (Metal) -1,5 kHz (electronic components)
  • Tuning - Automatic


Download the documentation download

 




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