SST NR-900S Manuel utilisateur
PORTABLE NONLINEAR
JUNCTION DETECTOR
“
NR-900S
”
User manual
- 2018-
PORTABLE NONLINEAR
JUNCTION DETECTOR
“
NR-900S
”
User manual
- 2018-
NR-900S Operation Manual
2
CONTENTS
1 Application.…………………………………. 5
2
NR-900S complete set……………………….
6
3
Main technical parameters…………................
7
4 Function ……………………… 8
5
Design ……………………………................
Main unit ………………………….…
Control unit ……………………………....
9
9
10
6
Accessories ……………………………..…
Imitator ………………………
Headphone
NR-900S power supply…………………….….
Charger …………………………….
11
11
12
12
13
7
NR-900S operation
Operation condition and restriction
Getting started
NR-900S workability test
NR-900S safety precaution
Detector operation in 'LISTEN' mode
Detector operation in 'SEARCH' mode
14
14
15
16
17
18
18
8 Packing 19
9 Emergency actions 20
10
Battery charging
21
11
Maintenance ……………………………….
24
12 Shipping and storage ………………… 26
13 Certificate of acceptance …………………….. 26
14 Warranty ………………………………….. 27
NR-900S Operation Manual
3
This Manual is intended
for explanation
“NR-900S” Non-linear Junction Detector
design & principle of operation
as well as directions for its use.
For proper equipment use,
study this Manual in depth.
NR-900S Operation Manual
4
The Device has an open UHF radiator
of electromagnetic energy.
In active mode it represents
a source of active interference
that could cause certain malfunction
of radio-electronic equipment
located in close proximity
It is the responsibility of the User
to comply with the corresponding
Radio Communication Regulations
of the country
where ‘NR-900S’ NLJD is being used
It is highly recommended not to aim
the device antenna to any human body or pets
from the distance less than 1 meter
NR-900S Operation Manual
5
1. APPLICATION
NR-900S Non-linear Junction Detector (fig. 1) is intended for
searching concealed eavesdropping devices as well as other electronic
items that contain semi-conductor elements.
NR-900S typical
targets:
−Radio-mikes.
−Microphone amplifiers.
−Wired mikes.
−Devices with IR or
ultrasonic data & control
channels.
−Video & audio
recorders.
−Electronic timers,
actuating devices of
improvised explosive
devices (IED) and etc.
NR-900S can detect typical targets in every operational mode: active,
stand-by or even switched-off.
NR-900S ensures comprehensive searching capabilities and reliable
localization of ‘bugs’ in fabric constructions, furniture and various
office or home items.
NR-900S provides its operator with an opportunity to discriminate
between industrial electronic elements and metal-to-metal contacts, so
called ‘corrosion diodes’.
NR-900S provides the unique possibility to reveal active electronic
targets at the electromagnetic background produced by various
electric devices.
Fig. 1 NR-900S
NR-900S Operation Manual
6
2. NR-900S COMPLETE SET (fig. 2)
Table 1
1
NR-900S
main unit 1
2 Carry case 1
3 Headphones 1
4 Car power adapter 1
5 Soshine SC-S1 battery charger 1
6 AC power adapter 1
7 Target imitator (test unit) 2
8 Soshine 18650 rechargeable cells 4
- Operation manual (not shown) 1
1
2
3
4
5
6
7
8
Fig.2 NR-900S Complete set
NR-900S Operation Manual
7
3. MAIN TECHNICAL PARAMETERS
Table 2
Average probing signal power in Searching
mode
not less 400 mW
Maximal probing signal pulse power in
Searching mode
not less 2 W
Maximal probing signal continuous power in
Listening mode
not less 2 W
Probing signal level -max
-mid
-min
0 dB
-6 dB
-12 dB
Receiver input signal attenuation
10 dB, 20 dB,
30 dB, 40 dB
Received signal level indication -visual
-audio
LED display
Headphones
Modulation
Pulse-amplitude
Power supply
2 x 18650 Li-ion
rechargeable cells, 3.7V
Operational condition:
Operating temperature
Storage and shipping temperature
Relative humidity (under +35°±2
°
С)
-30°С … +40°С
Minus 40°С … +50°С
93±3 %
Continuous operation time
with one set of fully charged cells
-Searchnig mode
-Listening mode
not less 3 h
not less 1 h
Weight
Device in a ready for operation state
Complete set in a standard packing
1.4 kg
8,0 kg
NR-900S Operation Manual
8
4. FUNCTION
NR-900S represents a portable tool that consists of antenna system,
transmitter and two receivers adjusted for double and triple frequency
of the transmitter’s signal.
Two operational modes are available: SEARCH and LISTEN.
In a SEARCH mode the probing signal is converted into a poly-
harmonic one on the radiated nonlinear elements (semi-conductive
items or corroded metal-oxide-metal junction) and retransmitted,
better say – scattered into ambient space.
Retransmitted 2nd & 3rd harmonics of the probing signal are received
and processed by receivers. Signals strength is indicated by LED bar-
graph display: scales 2and 3accordingly. Moreover, it is reproduced
via headphones in the form of interrupted beep-beep audio signal: 1
kHz for the 2-nd harmonic and 1.5 kHz for the 3-rd one. The audio signal
volume is proportional to the received harmonic signal level.
The receiver inputs switching as well as headphones volume control
is available from the device control panel.
NR-900S has three output levels for radiated probing signal with 6 dB
step and four levels of the receiver input signal attenuation each of 10
dB. The probing signal output level and receiver input signals
attenuation can be switched over by Control panel buttons. This info
is confirmed by LED display.
An auxiliary LISTEN mode is intended for the 2nd & 3rd harmonic
signals investigation for possible modulation imposed by internal
processes in some active electronic circuits irradiated by the probing
signal generated by NR-900S transmitter.At that, ‘active’ means the
circuit is in an operational mode carrying out its particular function.
Moreover, this can be done against the existing interference
environment.
It should be noted that Operator should be skilled enough to recognize
such features of retransmitted signals and be familiar with possible
reply of certain targets (electronic & electro-mechanical timers, clocks
or voltage transducers).
NR-900S Operation Manual
9
5. DESIGN
MAIN UNIT
NR-900S main unit (see also fig.3) represents a mono-block that
consists of antenna system and electronic unit: transmitter with two
receivers, control module and LED display - indication panel.
NR-900S antenna system consists of two directional antennas
(transmitting and receiving) with linear polarization attached to
reflector and are covered by a plastic dome. Main lobes of antennas
radiation pattern are oriented along their geometrical axis..
Meanwhile, this fact forces an Operator to rotate the antenna
module at least ±90
°
around its imaginary axis passing
perpendicularly to antenna front surface for assured possible target
investigation.
5
1
2
3
4
Fig. 3. NR-900S
ready for operation.
1-main unit, 2- control unit with
display, 3
-headphone, 4 – handle, 5 - socket
Table des matières
