Non Linear Junction Detector 04 [K50510] - € 10.990,00 : Eurospyshop

Non Linear Junction Detector 04 € 10.990,00

This device is designed to detect covert electronic devices containing semi-conducting components.

The device allows inspection of light constructional elements of buildings, furniture etc (in the office area) and detection of covert surveillance devices (radio microphones, microphone amplifiers, tape and digital recorders etc.) in different operational modes: in a transmission mode, switched off or in stand-by mode (for remote controlled devices).

Operational Principle:

Modern electronic devices usually contain semi-conducting components (diodes, transistors, computer chips etc.) These components reach to a high frequency signal transmitted by non-linear junction detectors (NLJD), reradiating the energy back on doubled and tripled frequencies of the flooding signal.

The effect allows effective detection of electronics devices in office areas, inside walls, furniture etc.

Features:
	•	The lightweight body and built-in cable system between the antenna and transceiver make the device compact and easy to use.
	•	The advanced technology within the detector, combines the advantages of both pulse and continuous wave based NLJDs.
	•	The extra antenna head LED display shows the received signal strength for both 2nd and 3rd harmonics.

Specification:

Transmitter
Frequency		848 MHz
Power:
	sweep mode	peak pulse 2W (+33 dBm) (average continuous 0.4W (+26dBm))
	signal's curve extraction mode (20K)	average continuous 2W (+33 dBm)
Control range of output power		10 dB (step 5 dB)
Modulation
	sweep mode	amplitude - pulse (duty cycle 5)
	signal's curve extraction mode (20K)	CW

Receivers
Frequencies		1696 MHz 2544 MHz
Sensitivity (with digital processing)		not less than - 162 dBW (-132 dBm) (at S/N ratio - 6 dB)
Attenuator levels		-10, -20, -30, -40 dB

Antenna
Polarization		circular
Ellipticity ratio		not less than 0,75
Gain of transmitting antenna		not less than +6 dB
Gain of receiving antenna		not less than +8 dB
Main lobe angel		no more than 40°
Back lobe level		no more than -15 dB

Output
Audio		tone (400 Hz)
Display		2 x 16-dot LED scale (resolution 2,5 dB)
Dynamic range of the display		40 dB
Displayed data on the control panel		level of 2^nd harmonic level of 3^rd harmonic receivers' attenuator status output power status headphone connection status (2^nd or 3^rd harmonics' outputs) 20K mode status
Displayed data on the antenna head		level of 2^nd harmonics level of 3^rd harmonics

Test target
Detection range in open space (in mode with maximum transmitter output power and maximum sensitivity of receivers)		not less than 0,4 m
The location accuracy of the test (in mode with minimum transmitter output power and minimum sensitivity of receiver)		no worse than 0,1 m

Power requirements
Battery		6 V (2 battery packs)
Continuous operation time from one battery pack
	in the sweep mode	5 hours
	in 20K mode	not less than 1,5 h

Dimensions
Antenna head		ø194 mm
Extendable handle (maximum length)		980 mm
Transceiver unit		177 x 140 x 60 mm
Device in carrying case		485 x 390 x 140 mm

Operation conditions
Operational temperature range		+5 ~ +50°C
Limiting temperature range		-40 ~ +60°C
Humidity (at +25°C)		up to 80%