Catalog

Lornet-0836 – Double probing frequency non-linear junction detector

The non-linear junction detector LORNET-0836 is the indispensable tool for quick and reliable detection of devices containing semiconductor components. It can be used for counter-surveillance search works in premises (covert transmitters identification), as well as for location of explosive devices outdoors. The DPF (double probing frequency) technology with a patent pending antenna system places it truly apart from the competition.

Main competitive advantages:

• Double probing frequency operation mode gives significant advantages over single frequency NLJD since it is much better to detect small-sized and high-frequency semiconductor objects at high frequencies whereas the use of low frequencies benefits from improved detection in the wet ground and concrete walls;

• It is possible to operate in one of the frequency ranges and in both of them simultaneously;

• An embedded parabolic antenna with high gain (20 dB at 3600 MHz) enables highly precise detection of semiconductor components from a long distance.

• Laser pinpointing for a space selective object localization;

• Wide power control range, automatic and manual modes of probing signal level adjustment;

• Possibility to listen to the envelope detector output as well as to the received signal level via a built-in loudspeaker and wireless head phones to evaluate parametric impacts (e.g., knocking) on the suspicious object.

• Low-frequency range (800 MHz) gives opportunity the operate high humidity.

• High frequency range (3600 MHz) gives opportunity to spatially select the semiconductor elements location

• Reliable detection of the SIM-card at a distance of 80 centimeters.

• Compact device, the weight is 1 Kg.

• Lornet is equipped with an automatic system of protection against centered jamming by criterion of a minimum noise in the receiver path of the 2nd harmonic.

• Electromagnetic radiation towards the operator is many times less than one set by the Regulator.

Technical characteristics:
Type of probing signal	– pulse modulated carrier with a duty cycle of 0.4 % (Pulse) – pulse modulated carrier with a duty cycle of 6.0 % (CW)
Lower probing signal frequency	789,5 … 791,5 MHz
Upper probing signal frequency	3581,5 … 3607,5 MHz
Transmitter`s peak/average power in each frequency range in Pulse	18 W / 64 mW
Transmitter`s peak/average power in each frequency range in CW	6 W / 375 mW
Power control range	20 dB from max value, 11 steps
Transmittance antenna gain of upper range	20 dB, beam angle by -3 dB level – 22 ^o
Transmittance antenna gain of lower range	6 dB, beam angle by -3 dB level – 60 ^o
Receiver antenna gain of upper range	Not less 24 dB
Receiver antenna gain of lower range	Not less 8 dB
Receiver`s sensitivity	Better than –110 dBm (one LED lights up at the indicator scale)
Receiving path dynamic range	30 dB (20 dB – LED indicator range, 10 dB – attenuator range at receivers input adjusting by ATT button)
Time of continuous operation with a Li-Ion battery at the max power:
– in pulse mode	At least 2.5 h
– in CW mode	At least 1.5 h
Weight:
– Device	1 Kg
– Full set	4.5 Kg
Dimensions:
– Device	31 x 31 x 28 cm
– Bag	44 x 30 x 35 cm
Operating conditions	– ambient temperature +5 ^oC … +40 ^oC – pressure at least 450 mm of mercury

Catalog

Lornet-0836 – Double probing frequency non-linear junction detector

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