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Non-linear junction detector NS-11-900

The NS-11-900 non-Linear Junction Detector (NLJD) is designed to detect concealed electronic devices containing semi-conducting components.

The device allows inspection of buildings, walls, furniture, etc., and detection of covert electronic surveillance devices (radio microphones, microphone amplifiers, tape and digital recorders, etc.) in different operational modes: transmission mode, switched off, and stand-by mode (for remote controlled devices).

NLJD receives reflected signal, analyzes it and allows effective distinguishing of electronic units at other objects background including those having similar properties.

The very narrow-beam aerial system, wide range of adjustment of basic parameters ensure high accuracy of searched object localization and convenience in use.

Technical Specifications:

Transmitter Frequency, MHz Output power Control range of output power, dB Probe signal modulation type	860 peak pulse 200 W (+53dBm) (average continuous 0.13W (+21dBm) 10 amplitude-pulse (duty cycle 1500)
Receivers Frequencies, MHz Sensitivity (taking into account digital processing) Attenuator levels, dB	1,720; 2,580 not worth than -123dB/W (-93dBm) (at S/N ratio - 6dB) -10,-20,-30,-40,-50
Aerial Polarization Ellipticity ratio, not worth than Gain of transmitting aerial, not less than Gain of receiving aerial, not less than Main lobe angle, not less than, Back lobe level, dB, not less than	circular 0.75 6 8 40° -20
Dimensions Aerial head, mm Telescopic rod (maximum length), mm Transceiver unit, mm Device in carrying bag, mm	ø194 980 215 x 162 x 63 540 x 420 x 150
Weight Telescopic rod with aerial system, kg Transceiver unit, kg Ready-to-use device (with battery), kg Device in carrying bag, kg	0.8 2.2 3.3 8.4